Matt is five years older than twice his cousin andy’s age. the sum of their ages is less than 35. what is the greatest age that andy could be?

Answers

Answer 1
Since there are two unknowns, Matt's age and Andy's age, we need to formulate two algebraic equations in order to solve the system. The first independent equation that we could form, is the relation ship of their ages. Suppose we let Matt's age be equal to x. Andy's age will be denoted as y. Then,

x = 5 + 2y

The second independent equation would be the sum of their ages:
x + y ≤ 35
As you can observe, I used an inequality with the symbol ≤ which means less than or equal to. It means that their sum could be less than or equal to 35. So, the equation is

x + y ≤ 35

Solving the equation, 
5 + 2y + y ≤ 35
3y ≤ 35-5
3y ≤ 30
y ≤ 10

Thus, Andy's greatest age could be 10 years old.

Related Questions

josianne had two difference offers (1) 12000 cash and (2) 8000 semiannually for 5 years. assuming 10% compounded semiannualy determine the better offer and find the difference between them

Answers

Total = principal * (1 + (rate / n) ) ^ years * n
where "n" is the number of compounding periods per year
Total = 8,000 * (1 + (.1 / 2)) ^ 5 * 2
Total = 8,000 * (1.05) ^ 10
Total = 8,000 * 1.6288946268
Total = 13,031.16
So, the 8,000 @ 10% compounded semi-annually is the better offer because it pays $1,031.16 more.


The formula for the nth term of an arithmetic sequence can be found using the formula a(n)=a (1)+(n-1)d. Which of the following is equivalent to this equation?
a. n=a(n)
b. n=a(n)+a(1)-d/d
c. n=a(n)-a(1)
d. n=a(n)-a(1)+d/d

Answers

The formula is given as

[tex] a_{n} = a_{1}+(n-1)d [/tex] , multiplying out the bracket gives
[tex]a_{n}= a_{1}+nd-d [/tex], rearranging to make [tex]n[/tex] the subject
[tex] a_{n}- a_{1}+d=nd [/tex]
[tex] \frac{ a_{n}- a_{1}+d }{d}=n [/tex]

Hence, the correct answer is option d

Answer:

D.

Step-by-step explanation:

:)

"if the price of mints was raised from 5 cents each to 15 cents for two, what was the increase in price per mint?"

Answers

15 cents for two mints gives 7.5 cents for one mint 
7.5 cents is an increase of 2.5 cents from the previous price 5 cents for one mint and it is a 50% increase

Answer:

Increase in price per mint is 2.5 cents .

Step-by-step explanation:

The price of mints is raised from 5 cents each to 15 cents for two.15 cents is the rice in price for two mints .Hence rise in price for each mint is 15÷2=7.2 cents.

Rise  in price for each mint = 7.2-5=2.5cents.

Percent increase = [tex]\frac{2.5}{5} (100)=50[/tex]

There is 50% increase in price per mint.

Explain 2 other ways other than rotating 180 degrees counterclockwise or clockwise, that would allow the point to find it’s way to the same place from its original position. Hint: You may combine transformations.

Answers

check picture 1

Notice that a 180° rotation clockwise or counterclockwise (around the origin) send any point P(a, b) to a point with coordinates (-a, -b).

this means the number values of the respective x and y coordinates are the same, but the signs are different.

for example rotating point P(-3, 17) 180 degrees results in point (3, -17)


check picture 2.

reflecting point P(a, b) with respect to :

the y-axis results in point (-a, b)


the x-axis results in point (a, -b)


for example , consider point P(-3, 17)

reflecting this point with respect to the y axis, results in (3, 17)

reflecting (3, 17) with respect to the x-axis results in (3, -17)


So the effect of reflecting with respect to the y axis, the x axis (the other way around is the same) results in the same point as rotating 180 degrees.


Answer:

1) reflect with respect to the y-axis, then reflect this last point with respect to the x-axis

2) reflect with respect to the x-axis, then reflect this last point with respect to the y-axis

the price of a television decreased from 1000.00 to 800.00.what is the percent of decrease.

Answers

Percentage change = 100((New Value - Original Value) / Original Value)
So....
100((800 - 1000) / 1000)
= 100(-1/5) = -20%
Considering the question asks what is the percentage 'decrease' and thus has mentioned that the price is decreasing, you should just give the answer as 20%. If it was not mentioned that the value increases or decreases, it would be correct to put it as -20%

Answer:

The decrease is 20%

Step-by-step explanation:

A card is drawn from a standard deck of 52 cards. what is the probability that it is a heart? type in your answer to two decimal places!

Answers

There are 13 hearts in a deck, so 13/52 which is just 1/4 which is 0.25
4 suits in a deck
1 suit is a heart

so the probablity is 1 out of 4 or 25% or 0.25

a ratio is a rate, sometimes,never, or always?

Answers

Never True.            
Ratio can be rate but rate can never be ratio. In essence, rate is comparison between ratios.  While ratio is comparison between two or more numbers. Further, ratio on one hand, involves numbers either in amount, size, measurement, degrees, percentages or fractions with the absence of specific unit of measurement. On the contrary, rate is comparing quantities, amounts or unit of events happened expressed in a specific measurement or expressed under time. Take for instance, an example, Joe eats 2 while John eats 4 meals in a day. The ratio can be Joe: John, 2:4 meals. While the rate, is Joe eats 2 meals/day and John 4 meals/day. 

The graph represents a person's heart rate in beats per minute during 30 minutes of exercise.

Which statement best describes the relationship between heart rate and time doing exercise?

Answers

Looking at the graph closely we can see that the heart rate increases from 0 to 6 min then became steady from 6 to 25 min then finally decreases from 25 to 30 min. Therefore the correct answer is:

“The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes.”

 

In real life cardiac exercises, we can interpret that the period from 0 to 6 min is the period where the person is still warming up thus leading to an increase in heart rate. At 6 min, the person is fully warmed up hence reaching a stable heart rate. Then at 25 min, the person starts cooling down which means that the exercise is ending soon.

Use the functions f(x) = 2x + 7 and g(x) = 6x − 5 to complete the function operations listed below.

Part A: Find (f + g)(x). Show your work. (3 points)

Part B: Find (f ⋅ g)(x). Show your work. (3 points)

Part C: Find f[g(x)]. Show your work. (4 points)

Answers

We are given the two functions:

f(x) = 2x + 7

g(x) = 6x – 5

 

Part A. Find (f + g)(x)

(f + g)(x) = f(x) + g(x)

(f + g)(x) = 2 x + 7 + 6 x – 5

(f + g)(x) = 8 x + 2

 

Part B. Find (f ⋅ g)(x)

(f ⋅ g)(x) = f(x) ⋅ g(x)

(f ⋅ g)(x) = (2 x + 7) (6 x – 5)

(f ⋅ g)(x) = 12 x^2 – 10 x + 42 x – 35

(f ⋅ g)(x) = 12 x^2 + 32 x – 35

 

Part C. Find f[g(x)]

f[g(x)] = 2 (6 x – 5) + 7

f[g(x)] = 12 x – 10 + 7

f[g(x)] = 12 x - 3

How do I simplify this?

Answers

This is the theory of algebra, to simply the expression we proceed as follows;
[sqrt(x-2)+5/sqrt(x-2)]/(x-2)
simplifying the numerator we get:
sqrt(x-2)+5/sqrt(x-2)
=[x-2+5]/sqrt(x-2)
=(x+3)/sqrt(x-2)
therefore our entire expression will be:
[(x+3)/sqrt(x-2)]/(x-2)
[(x+3)/(x-2)^(1/2)]*1/(x-2)
applying the law if indices we get
=(x+3)/(x-2)^(3/2)

What does exclamation point mean in math?

Answers

! stands for factorial. It is the multiplication of all numbers from 1 up to the number before the !

e.g., 5! = 1*2*3*4*5 = 120
Final answer:

In mathematics, an exclamation point represents a factorial, meaning the product of an integer and all the positive integers below it. For example, 5 factorial, or 5!, is 5 x 4 x 3 x 2 x 1 = 120. Unlike exponentials, factorials involve consecutive multiplication of integers.

Explanation:

In mathematics, the exclamation point is used to represent a factorial. Factorial indicates the product of an integer and all the positive integers below it. For instance, 5! would be 5 x 4 x 3 x 2 x 1 =  120. This calculation method is a significant concept especially in exponential arithmetic.

Contrary to exponential notation, factorials do not deal with the concept of powers or repeated multiplication of the same number. Instead, they focus on consecutive multiplication of descending positive integers. For example, 3! is evaluated as 3 x 2 x 1 = 6, instead of 3 x 3.

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how do you write 710,000 in scientific notation with answers

Answers

The answer is
7.1×10^5

The scientific notation for 710,000 is [tex]7.1 \times 10^5[/tex].

Identify the significant digits:

In 710,000, the significant digits are “7.1”.

Determine the power of 10:

To convert 710,000 into a number between 1 and 10 times a power of 10, you notice that moving the decimal point 5 places to the left gives “7.1”.

This is because:

[tex]710,000 = 7.1 \times 100,000 = 7.1 \times 10^5[/tex]

Write the number in scientific notation:

Combine the significant digits with the power of 10.

[tex]7.1 \times 10^5[/tex].

A system of two equations is shown below: equation
c.a = 3b + 6 equation
d.a = 7b − 1 what value of a can be substituted into equation d to solve the system of equations? 3b 7b 3b + 6 7b − 1

Answers

The answer is c, or 3b+6!!

Manuel and rita bought cds at the music store. rita's cds originally cost three times more than manuel's cds, but she received a $9 discount. if rita spent $21 total, which equation can be used to find the amount manuel spent

Answers

3m - 9 = 21 <=== ur equation
3m = 21 + 9
3m = 30
m = 30/3
m = 10 <== ur solution

Answer with Step-by-step explanation:

Let cost of Manuel's cds=m

Rita's cds originally cost three times more than Manuel's cds, but she received a $9 discount.

i.e. Rita's cds cost=3m-9

Rita spent $21 total.

i.e. 3m-9=21

Adding 9 on both sides, we get

3m=30

Dividing both sides by 3, we get

m=10

Hence, equation which can be used to find the amount Manuel spent is:

3m-9=21

What is the factorization of the polynomial below?

x^3-4x^2+45x

Answers

The method of factorization is used to find the roots of a given polynomial. Roots are the solutions of the function. Graphically, these roots are where the curve passes the x-axis. The first step to do is to find the common factor of the equation. That would be x. So you place it outside of the parenthesis.

x³-4x²+45x = x(x² - 4x + 45)

If you solve the quadratic equation inside the parenthesis using the quadratic formula, the roots are imaginary. Therefore, the quadratic equation is already a prime polynomial. 

The final answer is x(x² - 4x + 45).
Hope This Helps You!(

Can some one please help me with this question answer What is 40%of 320

Answers

40% = 40/100 = 0.4

320 * 0.4 = 128  ← answer
320*0.4=128
Final answer: 128

Which Act protects consumers against inaccurate and unfair practices from credit card companies and lenders? The ______ in Lending Act protects consumers against inaccurate and unfair practices from credit card companies and lenders.

Answers

I'm pretty sure the answer is The Truth in Lending Act.
Hope this helped!

Answer:

Truth

Step-by-step explanation:

Lukas graphed the system of equations shown. 2x + 3y = 2 y = x + 3 What is the solution to the system of equations? (–2, 2) (0, 0.67) (0, 3) (1, 0)

Answers

The closest answer that I could find would be (-2, 2). The answer to the system is (-1.4, 1.6)

The solution to the given system of linear equations is (-1.4, 1.6).

What is a linear system of equations?

A system of linear equations consists of two or more equations made up of two or more variables such that all equations in the system are considered simultaneously. The solution to a system of linear equations in two variables is any ordered pair that satisfies each equation independently.

The given system of equations are 2x+3y=2 -----(i) and y=x+3 -----(ii)

Substitute, equation (ii) in equation (i), we get

2x+3(x+3)=2

2x+3x+9=2

5x=-7

x=-7/5

x=-1.4

Substitute x=-1.4 in equation (ii), we get

2(-1.4)+3y=2

-2.8+3y=2

3y=2+2.8

3y=4.8/3

y=1.6

So, the solution is (-1.4, 1.6)

Therefore, the solution to the given system of linear equations is (-1.4, 1.6).

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What is the x-coordinate at the point of intersection of y1= 2(5x + 3) and y2= x2 − 15? Consider only the positive value of x, and round the value to nearest hundredth.

Answers

so when does y1 = y2?

at
2 (5x + 3) = (x2 -15)

solve and advise answer in comments and will assist further

Solution

The equation of two curves are

     [tex]y_{1}=y=2 \times (5 x+3)\\\\y_{2}=y=x^2-15[/tex]

Equating the two curves that is y values, to find their point of Intersection

→  2 × (5 x+3)=x²-15

→10 x +6=x²-15⇒⇒Used distributive property of multiplication with respect to addition

→x² -10 x -15 -6=0

→x² -10 x-21=0

For a Quadratic equation of the type

   [tex]\rightarrow ax^2+b x +c=0\\\\x=\frac{-b \pm \sqrt{D}}{2 a}\\\\D=b^2-4ac[/tex]  

Using discriminant method to solve the problem

   [tex]x=\frac{-(-10)\pm\sqrt{(-10)^2-4 \times 1 \times (-21)}}{2 \times 1}\\\\x=\frac{10 \pm \sqrt{100+84}}{2}\\\\x=\frac{10 \pm \sqrt{184}}{2}\\\\x=5 \pm \sqrt{46}\\\\x_{1}=5+6.78\\\\x_{1}=11.78\\\\x_{2}=5-6.78\\\\x_{2}=-1.78[/tex]

The x coordinate of point of intersection are, 11.78 and -1.78.

The table shows the outputs y for different inputs x:


Input
(x) 2 4 6 8
Output
(y) 1 2 3 4


Part A: Do the data in this table represent a function? Justify your answer.
Part B: Compare the data in the table with the relation f(x) = 3x – 10. Which relation has a greater value when x = 8?
Part C: Using the relation in Part B, what is the value of x if f(x) = 80?

Answers

A: Yes because for each x value, there is only one corresponding y value.
B: For the first relation, y is half of x, so f(x)=x/2. If x is 8, y is 4.
Plug in the value of x for the second function. 3(8)-10=24-10=14.
The second relation has a greater value.
C: 80=3x-10,
90=3x
x=30

Identify the standard form of the equation by completing the square

Answers

[tex]4 x^{2} -9 y^{2} -8x-36y-68=0[/tex]

[tex]4 x^{2} -8x-(9 y^{2} +36y)-68=0[/tex]

[tex](2x)^{2} -2*(2x)*2-((3y)^{2} +2*(3y)*6)-68=0[/tex]

add and subtract 2^ to the x-expression and 6^ to the second expression to complete the square.

[tex][(2x)^{2} -2*(2x)*2+4]-4-((3y)^{2} +2*(3y)*6+36-36)-68=0[/tex]

[tex](2x-2)^{2} -4-((3y+6)^{2} -36)-68=0[/tex]

[tex](2x-2)^{2} -(3y+6)^{2} -4+36-68=0[/tex]

[tex](2x-2)^{2} -(3y+6)^{2} -36=0[/tex]

[tex](2x-2)^{2} -(3y+6)^{2} = 6^{2} [/tex]

divide by 6 squared 

[tex]( \frac{2x-2 }{6} )^{2} -( \frac{3y+6}{6} )^{2} =1[/tex]

[tex]( \frac{x-1 }{3} )^{2} -( \frac{y+2}{2} )^{2} =1[/tex]

[tex] \frac{ (x-1)^{2} }{9} - \frac{(y+2)^{2}}{4} =1[/tex]

Answer: A

Shamus can paint the barn in 6 hours, and ishmael can paint the barn in 7 hours. how long will it take them to paint the barn together?

Answers

Given that Shamus can paint the barn in 6 hours, the portion of barn he can complete in 1 hour will be 1/6
If Ishmael can paint the ban in 7 hours, the portion he can paint is 1/7
when working together the portion they can complete will be:
1/7+1/6
=13/42
time taken for them to complete the barn will be:
42/13
=3 3/13 hours
the answer is 3 3/13 hours

A geometric sequence has a common ratio of 2/9 and the first term is 729 what is the 8th term?

Answers

This is the concept of sequences and series. The formula for geometric series is given by:
an=ar(n-1)
where;
a=first term
r=common ratio
n=nth term
thus the 8th term will be:
8th=728*(2/9)^(8-1)
=728*(2/9)^7
=128/6561

If a weighted score for a project is based on just two criteria, fit with strategy, weighted 70% and roi, weighted 30%, what would be the weighted score for a project with scores of 80 on fit with strategy and 50 on roi?

Answers

When dealing with weighted averages, we multiply the score of each item by the percentage that it's been weighted and add the scores together. 80/100 X 70/100 = 5600/10000 or 56/100 50/100 x 30/100 = 1500/10000 or 15/100 56 + 15 = 71 and so your grade would be 71%

Final answer:

To calculate the weighted score for a project, apply the weights to the scores for each criterion and sum the results. The calculated weighted score for a project with scores of 80 on 'fit with strategy' (70% weight) and 50 on 'ROI' (30% weight) is 71.

Explanation:

To calculate the weighted score for a project based on the provided criteria, you need to apply the weights to the scores for each criterion and then sum the results. In this case, the criteria are 'fit with strategy' which has a weight of 70% and 'ROI' which has a weight of 30%.

The weighted score for 'fit with strategy' is calculated as follows:
(Score for 'fit with strategy' × Weight of 'fit with strategy') = (80 × 0.7) = 56.

The weighted score for 'ROI' is calculated as follows:
(Score for 'ROI' × Weight of 'ROI') = (50 × 0.3) = 15.

To find the total weighted score for the project, you add these two results together: 56 (from fit with strategy) + 15 (from ROI) = 71.

Therefore, the total weighted score for the project is 71.

True or False? The distribution whose five-number summary is shown below has at least one outlier. 21.7, 55.3, 73.4, 89.3, 142.2 A. True B. False

Answers

Answer:

True

Step-by-step explanation:

Apex approved

Answer:

this answer is true

Step-by-step explanation:

i say this because 142.2 is an outlier.

Felicia put $175 into a CD that pays 4% interest, compounded semiannually. According to the rule of 72, approximately how long will it take for her money to double?

Answers

The compound interest is given by:
A=p(1+r/100)^n
where;
A=amount
p=principle
r=rate
n=time
therefore the time taken for Felicia's money to double will be:
350=175(1+4/100)^n
350/175=1.04^n
2=1.04^n
therefore introducing natural longs we get:
ln2=nln1.04
n=(ln2)/(ln1.04)
n=17.7 years
The answer is 17.7 years

Answer:

the answer is 18 years

Step-by-step explanation:

i just did this on 12/8/18 good luck to cheaters







3/5x+19−3/20x−7/35x+19−3/20x−7 simplified is

Answers

Final answer:

To simplify the expression, combine like terms and then simplify to get (1/4)x+24.

Explanation:

To simplify the expression, 3/5x+19−3/20x−7/35x+19−3/20x−7, we can combine like terms and then simplify:

Combine 3/5x−3/20x−7/35x to get (3/5−3/20−7/35)x = (12/20−3/20−4/20)x = (5/20)x = (1/4)x.Combine 19+19 to get 38.Combine −7−7 to get −14.Combine the results: (1/4)x+38−14 = (1/4)x+24.

So, the simplified expression is (1/4)x+24.

Conjectures and Postulates are accepted as true without formally proving they are true.
True or False

Answers

The answer is false, it is only true for postulates, not conjectures.

Answer:

False; only true for postulates!!!

Step-by-step explanation:

On BYU :)

PLEASE HELP NEED ASAP! 10 PTS!
Solve each system by elimination.
1. -9x+2y= -1.
18x-7y=17

2. 4x+18y= -28
2x+9y= -14

3. 20x+y= -11
-10x-3y= -17

4. -3x+y=7
-6x+2y=12

Thank you!

Answers

Problem 1
-9x + 2y = -1             (1)
18x - 7y = 17             (2)
To eliminate x, multiply (1) by 2 to obtain
-18x + 4y = -2
 18x - 7y = 17
Add the two equations.
-3y = 15
y = -5
From (2), obtain
18x = 17 + 7y = 17 + 7*(-5) = -18
x = -1

Answer:  x= -1, y = -5

Problem 2.
4x + 18y = -28           (1)
2x + 9y = -14             (2)
Divide (1) by 2 to obtain the system of equations
2x + 9y = -14
2x + 9y = -14
These two equations re identical.
Therefore there are an infinite number of solutions.

Answer:
There is no unique set of solutions.

Problem 3.
 20x + y = -11           (1)
-10x - 3y = -17         (2)
Multiply (2) by 2 to obtain
 20x + y = -11
-20x - 6y = -34
Add the two equations to eliminate x.
-5y = -45
y = 9
From (1), obtain
20x = -11 - y = -11 - 9 = -20
x = -1

Answer:  x = -1,  y = 9

Problem 4
-3x + y = 7           (1)
-6x + 2y = 12       (2)
Divide (2) to obtain the system of equations
-3x + y = 7
-3x + y = 6
Because 7 ≠ 6, th set of equations is nonsensical (inconsistent).

Answer:
The set of equations is invalid, and it has no solution.

The Hamilton Brush Company issued 2500 shares of common stock worth 100,000,000 total.What is the par value of each share

Answers

The par value of each share is
100,000,000÷2,500
=40,000 per share
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