Chrissy walked 550 meters in 7 minutes and 20 seconds. If each lap is 25 meters, which is Chrissy’s MOST LIKELY time per lap in seconds? *A) 20 seconds b. 22 seconds c 42 seconds d. 64 seconds



Martin drives to work at a speed of 45 miles per hour. It takes him about 2 hours and 15 minutes to get to work. If gas costs $2.75 per gallon and Marin’s car gets 25 gallons of gas per mile, about how much does Martin spend on gas to get to work? a. 3.87 b. 4.05 c. 10.64 d. 11.14

Answers

Answer 1
550/25 is 22. He walked 22 meters for every lap. 
He took 440 seconds to complete all of the laps. 
440/22 is 20. he takes 20 seconds per lap

45*2.25 is 101.25 miles to get to work
101.25/25 is 4.05 gallons to get to work
4.05*2.75 is 11.14 that he spends each day to get to work

Related Questions

Find the measure of angle x in the figure.
Angle x measures?

Answers

the sum of all interior angles in a polygon, regular or not, is

18(n - 2)


where "n" is how many sides are there in the polygon, now, notice, this polygon has 7 sides, so is a heptagon, so the sum of its interior angles will be 18(7 - 2) or 900.

now, subtract all other angles from 900, and what's leftover is "x".

Answer:

Measure of angle x is:

119°

Step-by-step explanation:

The sum of all interior angles in a polygon having n sides is:

180°(n - 2)

Now, this polygon has 7 sides.

So the sum of its interior angles will be= 180°(7 - 2)

                                                                = 900°

i.e. 129°+129°+123°+122°+x+141°+137°=900°

or 781°+x=900°

or x=900°-781°

or x=119°

Hence, Measure of angle x is:

119°

Translate the following word phrase into an algebraic expression.
" 3 multiplied by the sum pf a number and 5"
A. 3(x+5)
B. 3x+5
C. x+(3)(5)
D. 5x+3

Answers

A. 3(x+5) Is the answer :)

$10,000 is compounded semiannually at 12% interest for t years. what expression represents the amount of money after t years?

Answers

The expression would be
0.12t=10,000(2)

The expression that represents the amount of money after t years when $10,000 is compounded semiannually at 12% interest is [tex]10000(1.06)^{(2t)}[/tex].

The amount of money after t years can be represented by the following expression:

[tex]A = P(1 + \frac{r}{n})^{(n*t)}[/tex]

Where:

A is the amount of money after t years

P is the principal amount (initial investment), which is $10,000 in this case

r is the interest rate, which is 12% expressed as a decimal (0.12)

n is the number of times interest is compounded per year, which is semiannually (2 times per year)

Substituting the values into the expression, we have:

[tex]A = 10,000(1 + \frac{0.12}{2})^{(2*t)}[/tex]

Simplifying further, we get:

[tex]A = 10000(1.06)^{(2t)}[/tex]

Therefore, the expression that represents the amount of money after t years when $10,000 is compounded semiannually at 12% interest is [tex]10000(1.06)^{(2t)}[/tex].

To learn more about compound interest click here:

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The graph shows the change in a company’s dividends in durning certain year. Which function models this data?

Answers

Every function includes 3ˣ, so they will all have the same general shape. The solution lies in the y-intercept.

When x=0, we want y to equal 1. 
What is 3⁰? Any number to the power of zero is 1. 
Therefore, the function with a y-intercept at 1 is 3ˣ.

Best answer is C) P(X) = 3ˣ

How to find the x and y intercepts when given two points and no slope?

Answers

There is 2 ways

1) Identify the slope, m. This can be done by calculating the slope between two known points of the line using the slope formula.
2) Find the y-intercept. This can be done by substituting the slope and the coordinates of a point (x, y) on the line in the slope-intercept formula and then solve for b.

Suppose an isosceles triangle ABC has A = 45° and b = c = 4. What is the length of a^2?

A.22.63
B.54.63
C.9.37
D.3.10

Answers

Since b = c, the angles B and C are congruent.
180 - 45 = 135
135/2 = =67.5

A = 45
B = 67.5
C = 67.5
a = ?
b = 4
c = 4

Since we know two sides and all three angles, we can use the law of sines to find a.

b/sin B = a/sin A

4/(sin 67.5) = a/(sin 45)

a = 4(sin 45)/(sin 67.5)

a^2 = (4(sin 45)/(sin 67.5))^2

a^2 = 9.37

If two angles are complementary to the same angle, then they are

Answers

If two angles are complementary to the same angle, then they are congruent.
Them angles are congoont my dood

how do you divide fractions

Answers

you find the reciprocal of the second fraction and change the division sign to multiplication and multiply straight across

Dividing fractions is basically the same thing as multiplying fractions but by the reciprocal.

For example, [tex]\frac{3}{8}[/tex] ÷ [tex]\frac{1}{4}[/tex] you would change this so in the second fraction that is being divided, the numerator and the denominator would switch places. Instead, it would be...

[tex]\frac{3}{8}[/tex] x [tex]\frac{4}{1}[/tex]

Please help! 3 questions, 1. Determine if the ordered pair is a solution of the equation. Is (-1,-30) a solution of y =10x?: a) True b) False
2.The point (5, -1) is a solution of the equation: y = 2x − 11 options: a) True b) False 3.Which ordered pairs are a solution to the equation? y = 8x options: a) (-1,-7) b) (2,16) c) (1,8) d) (-2,-6)

Answers

this is just a matter of subbing and solving to see if the equations are true

(-1,-30)...x = -1 and y = -30
y = 10x...so we sub
-30 = 10(-1)
-30 = -10 (incorrect)...so this is not a solution
================
(5,-1)...x = 5 and y = -1
y = 2x - 11
sub
-1 = 2(5) - 11
-1 = 10 - 11
-1 = -1 (correct)....so this is a solution
==============
y = 8x
sub in (2,16)...x = 2 and y = 16
16 = 8(2)
16 = 16 (correct)...so (2,16) is a solution

y = 8x
subbing in (1,8)...x = 1 and y = 8
8 = 8(1)
8 = 8 (correct)...so (1,8) is also a solution

thats all...just those 2 are the solutions

Which set of ordered pairs represents a function?

{(0, 0), (2, 3), (1, -4), (2, -2)}


{(5, 6), (2, 6), (-3, 4), (-1, 4)}


{(3, -2), (-4, -1), (0, 3), (0, 5)}


{(-5, 1), (-4, 2), (-5, 3), (-4, 4)}

Answers

The second one because for every x value there is one and only one y value. If you plotted the points and graphed it, you would know it is not a function if it doesn't pass the vertical line test. Notice the same x values show up repeatedly in the other ordered pairs with different y values. Only one y value for every x value

El área de un triángulo es igual a la mitad del producto de la longitud de la base por la longitud de la altura.
La base de un triángulo mide 23 cm y su área es 27 cm2.

Answers

shakin my head like yeah

A point on a coordinate plane is located 3 units to the right of the origin and 7 units above the origin. What are the coordinates of this point? Use the drop-down menus to enter the coordinates below.

The coordinates of the point are
(
( ,
)
)

Answers

(3,0)(0,7) is the correct answer

This question is based on the coordinates of a plane. Therefore,  ( 3, 0) and ( 0, 7) are coordinates of this points.

Given:

A point on a coordinate plane is located 3 units to the right of the origin and 7 units above the origin.

We need to determined the coordinates of the points.

According to the question,

It is given that, 3 units to the right of the origin means that, 3 units on positive x - axis.

As we know that,

On x -axis, y is equal to zero.

Therefore, the co-ordinate of this point is located on ( 3, 0).

Now, 7 units to the above the origin means that, 7 units on positive y - axis.

As we know that,

On y -axis, x is equal to zero.

Therefore, the co-ordinate of this point is located on ( 0, 7).

Hence,  ( 3, 0) and ( 0, 7) are coordinates of this points.

For more details, prefer this link:

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A ____ is a subset of a given set of elements

Answers

Answer:

The correct answer is a COMBINATION

A combination is a subset of given elements.

Step-by-step explanation:

A long distance phone company charges $1.01 for the first 25 minutes of a call, then $0.09 for each additional minute. A call cost $9.56 how long did it last?

Answers

You will have to form the equation:

1.01+.09x=9.56       Solve for x. Start buy subtracting 1.01 from both sides.
.09x=8.55               Divide both sides by .09
x=95                      The call was 95 additional minutes. So...
25+95=120           120 minutes in total. Check your answer by substituting x...

1.01+.09(95)=9.56
1.01+8.55=9.56
9.56=9.56

I hope this helps!

Final answer:

Subtracting the initial charge from the total cost and then dividing the remainder by the cost per additional minute, we find that the call lasted for 120 minutes.

Explanation:

The student is asking how long a phone call lasted based on the cost of the call with a given rate structure. We know that the first 25 minutes cost $1.01 and each additional minute costs $0.09. The total cost of the call was $9.56. To determine the duration of the call, we need to calculate the cost of the additional minutes beyond the first 25, and then find out how many of those minutes were used.

Subtract the initial charge from the total cost: $9.56 - $1.01 = $8.55.

Divide the remaining cost by the cost per additional minute: $8.55 / $0.09 = 95 minutes.

Add the initial 25 minutes to the additional minutes: 25 + 95 = 120 minutes.

Therefore, the call lasted for 120 minutes.

Please help, I'm stuck on this answer.
True or false? Explain your answer.
The inequality −2(x + 10) ≥ 75 says the same thing as −2x − 20 ≥ 75. I can multiply by -2 on the left side without reversing the inequality symbol.

Answers

I agree with what that person told you. The expression -2(x+10) is equivalent to -2x-20

Multiply the outer -2 with the inner x to get -2 times x = -2x

Multiply the outer -2 with the inner term 10 to get -2 times 10 = -20

So overall, -2(x+10) = -2x-20

--------------------------------------------

So that's how we're able to go from this [tex]-2(x+10) \ge 75[/tex] to this [tex]-2x-20 \ge 75[/tex]

The only thing that changes is the left side. The inequality sign will not flip. It only flips if we multiply both sides by a negative number. 

Answer:True

Step-by-step explanation:

Yes, you don't have to reverse the inequality symbol since the variables are not from the other side (right).

Which expression is equivalent to (3−22)+5 ?

A. 22−5
B. 5−32 ​
C. 32−5 ​
D. 5−22

Answers

Final answer:

The expression (3-22)+5 simplifies to -14. None of the provided options: A. 22-5, B. 5-32, C. 32-5, or D. 5-22 are equivalent to the original expression.

Explanation:

Let's break this question down for you. The initial expression given is (3−22)+5. In math, operations inside the parentheses are performed first according to the order of operations (PEMDAS/BODMAS), which is followed by addition or subtraction. However, the expression inside the parentheses here results in a negative number, since 3−22 equals -19. Then add 5 to -19 gives you -14.

So, the none of the options A, B, C or D are equivalent to the original expression (3−22)+5.

It's important to understand order of operations in math because it helps to ensure that calculations are done correctly and consistently.

Learn more about Order of Operations

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none of the provided options (A, B, C, or D) match this value.

We start with the given expression (3−22)+5. It can be simplified step-by-step as follows,

Calculate inside the parentheses first: 3 - 22.

Since subtracting 22 from 3 is performed, we get: 3 - 22 = -19.

Next, add 5 to the result: -19 + 5 = -14.

Let's evaluate each of the provided options:

A. 22−5: This evaluates to 17, which does not match -14.

B. 5−32: This simplifies to 5 - 9 = -4, which does not match -14.

C. 32−5: This evaluates to 9 - 5 = 27, which does not match -14.

D. 5−22: This simplifies to 5 - 22 = -17, which does not match -14.

None of the provided expressions are equivalent to (3−22)+5. Therefore, the correct answer is: None of the above.

One positive integer is 3 less than twice another. the sum of their squares is 233. find the integers.

Answers

let the two integers be x and y
x-3= 2y
x=2y+3______(1)

x²+y²= 233_____(2)
sub eqn (1) into (2)
{2y+3}²+y²=233
4y² + 12y +9 +y²=233
5y²+12y+9-233=0
5y²+12y-224=0
y= -8 or 5.6
recall they are positive integers so y=5.6
now sub y=5.6 into eqn (1)
x=2(5.6)+3 = 11.2+3=14.2

the two integers are 14.2 and 5.6

You begin solving the equation 4−5x=594-5x=59 by subtracting 44 from both sides. Which is the best choice for Step 22?

Answers

4 - 5x = 59

Subtract 4 from both sides:

-5x = 55

Since x is being multiplied by -5, the next step is to divide both sides by -5.

Can you determine the number of digits in the quotient of 637 divided by 7 without dividing?explain.

Answers

The number 637 has 3 digits. When you dividing a number by a whole number,  the digits will be lowered if the number in the biggest digit smaller than the dividing number. In 637 number, the bigger digit is 6 which represents 600. Since the dividing number is 7 and it was bigger than 6, that means the number will lose 1 digit and become 2 digits number.

In the year 2016, the estimated population of Canadian geese in a city was 750. The Canadian geese population is expected to grow at a rate of 12% each year. What is the Canadian geese population in 2022? Round the answer to the nearest whole number.

Answers

The answer to this problem is 1480

Keywords:

population, Canadian geese, growth rate

For this case, we must find the population of Canadian geese for the year 2022, taking into account that in 2016 the estimated population of geese was 750 and as additional data, the population of geese has a growth rate of 12% each year.

Then, we started finding the Canadian geese population for 2017, for this we make a rule of three:

750 -----------> 100%

x --------------> 12%

DOnde "x" represents the number of geese that is added to the base population of 2016.

[tex]x = \frac {12 * 750} {100}\\x = 90[/tex]

Thus, the geese population for 2017 is: [tex]750 + 90 = 840[/tex]

We find the population of Canadian geese for the year 2018, following the previous steps since the annual growth rate is constant:

840 -----------> 100%

x --------------> 12%

where "x" represents the number of geese that is added to the base population of the year 2017.

[tex]x = \frac {12 * 840} {100}\\x = 100.8[/tex]

Thus, the geese population for 2018 is: [tex]840 + 100.8 = 940.8[/tex]

We found the population of Canadian geese for the year 2019, following the previous steps since the annual growth rate is constant:

940.8 -----------> 100%

x --------------> 12%

Where "x" represents the number of geese that is added to the base population of the year 2018.

[tex]x = \frac {12 * 940.8} {100}\\x = 112.896[/tex]

Thus, the geese population for 2019 is: [tex]940.8 + 112.896 = 1053.696[/tex]

We find the population of Canadian geese for the year 2020, following the previous steps since the annual growth rate is constant:

1053.696 -----------> 100%

x --------------> 12%

Where "x" represents the number of geese that adds to the base population of the year 2019.

[tex]x = \frac {12 * 1053.696} {100}\\x = 126.44[/tex]

Thus, the geese population for 2020 is: [tex]1053.696 + 126.44 = 1180.12[/tex]

We found the population of Canadian geese for the year 2021, following the previous steps since the annual growth rate is constant:

1180.12 -----------> 100%

x --------------> 12%

Where "x" represents the number of geese that is added to the base population of the year 2020.

[tex]x = \frac {12 * 1180.12} {100}\\x = 141.6[/tex]

Thus, the population of geese for 2021 is:[tex]1180.12 + 141.6 = 1321.7[/tex]

We found the population of Canadian geese for the year 2022, following the previous steps since the annual growth rate is constant:

1321.7 -----------> 100%

x --------------> 12%

[tex]x = \frac {12 * 1321.7} {100}\\x = 158.6[/tex]

Where "x" represents the number of geese that adds to the base population of the year 2021.  

Thus, the population of geese for 2022 is: [tex]1321.7 + 158.6= 1480.3[/tex]

ANswer:

 The population of Canadian geese by 2022 will be approximately 1480 geese

A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 108.7-cm and a standard deviation of 0.6-cm. For shipment, 22 steel rods are bundled together.

Find the probability that the average length of rods in a randomly selected bundle of steel rods is less than 109.1-cm.


Round to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 2 decimal places are accepted.

Answers

Let x be the lengths of the steel rods and X ~ N (108.7, 0.6)

To get the probability of less than 109.1 cm, the solution is computed by:


z (109.1) = (X-mean)/standard dev

= 109.1 – 108/ 0.6

= 1.1/0.6

=1.83333, look this up in the z table.


P(x < 109.1) = P(z < 1.8333) = 0.97 or 97%

Name the property of real numbers illustrated by the equation.
-3(x+4)=-3x-12

A: Distributive property
B: Associative property of addition
C: Associative property of multiplication
D: Commutative property of addition

Answers

Answer: Choice A) Distributive property

We're multiplying the outer -3 with the inner x to get -3x
Also, multiply the outer -3 with the inner +4 to get -12

So that's why -3(x+4) = -3x-12

Multiply 436.2 × 0.74 = ____

Answers

322.788 is the answer to your ?
Reformatting the input:

Changes made to your input should not affect the solution:

(1): "0.74" was replaced by "(74/100)". 2 more similar replacement(s)

Step by step solution:

Step 1: Simplify 37/50

Equation at the end of step 1:

4362 / 10 * 37 / 50

Step 2:

Equation at the end of step 2:

2181 / 5 * 37 / 50

Step 3:

80697 / 250 = 322.78800

Final Answer: 322.78800


What is the domain of the function f(x)=x+3

Answers

There are no restrictions on the values x can and can’t be, so in this case, your domain would be the set of all real numbers.

The set of complex numbers is the set of all numbers of the form a + bi, where a and b are real numbers and i=

Answers

√-1.  the i represents an imaginary number where you take the square root of -1.

Answer:

i = [tex]\sqrt{-1}[/tex]

Step-by-step explanation:

A complex number is that one having two parts:

One called real part, represented by a.And another called imaginary part, represented by bi, where b is also a real number plus i, as it was describe in the answer [tex]i = \sqrt{-1}[/tex].

Although  [tex]i =\sqrt{-1}[/tex], it is also [tex]i^{2} = -1[/tex], which has some interesting properties like [tex]i^{3}[/tex] = [tex]i * i^{2}= i * -1 = -i [/tex] , and so on.

These numbers came along when it was necessary to take the squared root of negative numbers:

[tex]\sqrt{-4} = \sqrt{-1} * \sqrt{4} = 2i ; -2i[/tex] .

Order the numbers 0.2, 1/5, 0.02, 0.022 from least to greatest.

Answers

0.022, 0.02, 0.2, 1/5, 

write two equations for a horizontal line and a vertical line.

Answers

Two equations for a horizontal line could be y = 1 & y = 5
Two equations for a vertical line could be x = 2 & x = 6

Horizontal lines are created when y is always equal to one number, while vertical lines are created when x is always equal to one number.

Hope this helps!

if angle m acd = 100 and angle m b =60, find angle m a

Answers

m<ACD = 100
m<B = 60

so
m<ACB = 180 - m<ACD
m<ACB = 180 - 100
m<ACB = 80

m<A = 180 - (60 + 80)
m<A = 180 - 140
m<A = 40

Answer:

The  measure of ∠BAC  is 40° .

Step-by-step explanation:

As given the figure in the question be as follow .

∠ACD = 100° , ∠B = 60°

Noe by using the the exterior angle is equal to the sum of the interior angle .

Thus

∠ACD = ∠CBA + ∠BAC

Put all the values in the above

100° =  60° + ∠BAC

∠BAC  = 100° - 60°

           = 40°

Therefore the  measure of ∠BAC  is 40° .

How would the distance formula be used in real life?

Answers

one example I can think of is to measure the direct distance between two locations. suppose A lives on the intersection of 30th avenue and 50th street, B lives on 70th avenue and 80th avenue, the distance between them would be the square root of [(70-30)^2 +(80-50)^2)], which is 50, so the straight-line distance between the two places are 50 blocks. 

Logan's only debt obligations are a car loan payment of $512 and a credit card payment of $70 every month. What is the minimum amount of money he must take home every month in order to avoid being in danger of credit overload?

Answers

The most used payment plan to avoid being in debt today is the 20% payment plan. In this payment , you divide your income into several parts.
20% for paying up debts, 10 % for savings, and 70% for everything else.

So, assuming that x is the minimum amount of money,  we know that

$ 512 + $70 =  20% . X

$ 582 = 0.2 . x

$ 582 / 0.2 = x

x = $ 2910




Answer:

$ 2910

Step-by-step explanation:

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