Answer:
Option A. 64,500Explanation:
1. First, calculate the number of hits had during the month, by difference:
50,165 hits - 7,278 hits = 42,887 hits2. Round the result to obtain an approximation = 43,000 hits
3. Multiply by the time that each lasted:
43,000 hits × 1.5 min/hit = 64,500 minutes.Hence, the answer is the option A.
an airplane travels at a rate of 250 miles/he with the wind and at a rate of 150 miles against the wind. what is the rate of the wind?
50 miles per hour is the rate (speed) of the wind.
Step-by-step explanation:
Let consider the variable ‘x’ for speed of wind.
Below we write two values of the speed of the airplane in the air in terms of ‘x’:
1. Subtract wind speed from airplane speed: 250 - x.
2. Add wind speed to the airplane speed against the wind: 150 + x.
And now, set these above two expressions equal to each other to find x (wind speed),
250 – x = 150 + x
2x = 100
x = 50 miles per hour
WORTH 15 POINTS PLEASE ANSWER ASAP!
"Jessica has 9/ 10 yard of fabric. She cut 5/ 12 of the length.
Jessica used this expression to find the amount of fabric she cut.
9/ 10×5/ 12
How much fabric did Jessica cut?"
Answer:
[tex]\frac{3}{8}[/tex] yards of fabric.
Step-by-step explanation:
Jessica has [tex]\frac{9}{10}[/tex] yards of fabric and she cut [tex]\frac{5}{12}[/tex] of the length.
Therefore, Jessica has cut fabric of the length [tex]\frac{9}{10} \times \frac{5}{12} = \frac{3}{8}[/tex] yards.
This is the answer as a fraction in simplest form.
Now, Jessica used the expression to find the amount of fabric she cut as [tex] \frac{9}{10} \times \frac{5}{12}[/tex] was correct. ( Answer )
urgent due for tommorow . will mark brainliest and get 50 pts
plz show workings
Answer:
Step-by-step explanation:
Sec B
1) 5p⁻³ = 8*5⁻²
p⁻³ = 2³*5⁻²/5
p⁻³ =2³*5⁻³ { 1/a^m = a^-m}
p⁻³ = 5⁻³ /2⁻³ {a^m = 1/a^-m}
p⁻³ = (5/2)⁻³
p= 5/2
2) 4x² = 81
x² = 81/4
x² = 9² /2²
x² =(9/2)²
x = 9/2
3) 9^x/3 =81
9^x/3 = 9^2
Comparing the powers, x/3 = 2
x = 2*3 =6
x = 6
14/1 ÷ 3/8 = please show work and answer fast
Answer: 37 1/3
Step-by-step explanation:
14/1÷3/8=?
Dividing two fractions is the same as multiplying the first fraction by the reciprocal (inverse) of the second fraction.
Take the reciprocal of the second fraction by flipping the numerator and denominator and changing the operation to multiplication. Then the equation becomes
14/1 × 8/3=?
For fraction multiplication, multiply the numerators and then multiply the denominators to get
14×8/1×3 = 112/3
This fraction cannot be reduced.
The fraction
112/3
is the same as
112÷3
Convert to a mixed number using
long division so
112/3=37 1/3
Therefore:
14/1 ÷ 3/8=37 1/3
13x+2y=1
5x-2y=-19
Solve for x and y
Answer:
Step-by-step explanation:
13x+2y=1
+ 5x-2y=-19
-------------------
18x=18
x=1
5x1-2y=-19
5-2y=-19
-2y=-19-5
-2y=14
-y=7
y=-7
x=1
y=-7
To solve the system, eliminate variables, find [tex]\( x = -1 \)[/tex], then substitute into an equation to get [tex]\( y = 7 \)[/tex].
To solve the system of equations [tex]\(13x + 2y = 1\)[/tex] and [tex]\(5x - 2y = -19\)[/tex], you can use the method of elimination.
First, let's eliminate one of the variables. We can eliminate [tex]\(y\)[/tex] by adding the two equations together:
[tex]\[ (13x + 2y) + (5x - 2y) = 1 + (-19) \][/tex]
This simplifies to:
[tex]\[ 13x + 5x = -18 \][/tex]
[tex]\[ 18x = -18 \][/tex]
Now, divide both sides by 18:
[tex]\[ x = \frac{-18}{18} \][/tex]
[tex]\[ x = -1 \][/tex]
Now that we have found [tex]\(x\)[/tex], we can substitute it into one of the original equations to find [tex]\(y\)[/tex]. Let's use the first equation:
[tex]\[ 13(-1) + 2y = 1 \][/tex]
[tex]\[ -13 + 2y = 1 \][/tex]
Add 13 to both sides:
[tex]\[ 2y = 1 + 13 \][/tex]
[tex]\[ 2y = 14 \][/tex]
Divide both sides by 2:
[tex]\[ y = \frac{14}{2} \][/tex]
[tex]\[ y = 7 \][/tex]
So, the solution to the system of equations is [tex]\(x = -1\)[/tex] and [tex]\(y = 7\)[/tex].
A circle with area 25pi has a sector with a central angle of 9/10pi radians. What is the area of a sector? Either enter an exact answer in terms of pi or use 3.14 for pi and enter your answer as a decimal rounded to the nearest hundredth.
Answer:
11.25 pi
Step-by-step explanation:
Pi is 180 degrees, a circle is 360 degrees, 9/10's of 180 is 162, and divide that by the full 360 which is .45. Then, multiply that by 25 and you have 11.25 pi is the area of that sector.
Find the midpoint of the line segment (-5,-8), (-7,3)
Answer:
Step-by-step explanation:
(-5,-8), (-7,3)
midpoint = (x₁+x₂/2, y₁+y₂/2)
= ( -5+-7/2 , -8+3/2) = (-5-7/2,-8+3/2)
= (-12/2, -5/2) = (-6,-5/2)
What is
[tex] - |x + 2| + 1 = 4x - 6[/tex]
Answer:
x = 1
Step-by-step explanation:
Given
- | x + 2 | + 1 = 4x - 6 ( subtract 1 from both sides )
- | x + 2 | = 4x - 7 ( multiply both sides by - 1 )
| x + 2 | = - 4x + 7
The absolute value always returns a positive value, but the expression inside can be positive or negative, thus
x + 2 = - 4x + 7 ( add 4x to both sides )
5x + 2 = 7 ( subtract 2 from both sides )
5x = 5 ( divide both sides by 5 )
x = 1
OR
- (x + 2) = - 4x + 7, that is
- x - 2 = - 4x + 7 ( add 4x to both sides )
3x - 2 = 7 ( add 2 to both sides )
3x = 9 ( divide both sides by 3 )
x = 3
As a check substitute these values into both sides of the equation and if both sides are equal then they are the solutions.
x = 1 : - |1 + 2| + 1 = - | 3 | + 1 = - 3 + 1 = - 2
right side = 4(1) - 6 = 4 - 6 = - 2 ← True
x = 3 : - |3 + 2| + 1 = - |5| + 1 = - 5 + 1 = - 4
right side = 4(3) - 6 = 12 - 6 = 6 ← False
Thus x = 3 is an extraneous solution and
x = 1 is the solution
Answer:
x = 1Step-by-step explanation:
[tex]|a|=\left\{\begin{array}{ccc}a&for&a\geq0\\-a&for&a<0\end{array}\right\\\\|x+2|=\left\{\begin{array}{ccc}x+2&for&x+2\geq0\to x\geq-2\\-(x+2)&for&x<-2\end{array}\right[/tex]
[tex](1)\ x<-2\\\\-\bigg(-(x+2)\bigg)+1=4x-6\\\\+(x+2)+1=4x-6\qquad\text{combine like terms}\\\\x+(2+1)=4x-6\\\\x+3=4x-6\qquad\text{subtract 3 from both sides}\\\\x+3-3=4x-6-3\\\\x=4x-9\qquad\text{subtract}\ 4x\ \text{from both sides}\\\\x-4x=4x-4x-9\\\\-3x=-9\qquad\text{divide both sides by (-3)}\\\\\dfrac{-3x}{-3}=\dfrac{-9}{-3}\\\\x=3\notin(1)[/tex]
[tex](2)\ x\geq-2\\\\-(x+2)+1=4x-6\\\\-x-2+1=4x-6\\\\-x+(-2+1)=4x-6\\\\-x-1=4x-6\qquad\text{add 1 to both sides}\\\\-x-1+1=4x-6+1\\\\-x=4x-5\qquad\text{subtract}\ 4x\ \text{from both sides}\\\\-x-4x=4x-4x-5\\\\-5x=-5\qquad\text{divide both sides by (-5)}\\\\\dfrac{-5x}{-5}=\dfrac{-5}{-5}\\\\x=1\in(2)[/tex]
Translate this sentence into and equation
72 is the product of Rita’s height and 4
Final answer:
The equation representing the sentence is 'R *4 = 72', where R is Rita's height. Dividing both sides by 4 yields Rita's height as R = 18 units.
Explanation:
The sentence' 72 is the product of Rita’s height and 4' can be translated into the equation R *4 = 72, where R represents Rita's height in the appropriate unit (e.g., meters or feet).
To find Rita's height, you would divide both sides of the equation by 4, simplifying to R = 72 / 4. Therefore, Rita's height would be 18 units. In the context of the given examples, the algebraic representation involves setting up equations and solving for an unknown variable through techniques like cross multiplication and proportion.
identify the domain and range for (1,4) (2,5) (0,6) (1,7) (2,8)
What is the volume of this solid? Recall the formula V=Bh.
A. 280 cubic inches
B. 385 cubic inches
C. 466 cubic inches
D. 560 cubic inches
Answer:
its A 280
Step-by-step explanation:
4(x + 7) = 90(2+x)
4x + 28 = 180 + 90x
208 = 94x
What is the next step I have to do in solving this please help
Answer: 2.12
Step-by-step explanation: Divide by 94 on both sides to get X by itself
2. Choose all the expressions that are equal
to 2/3
1/6 + 1/2 yes or no
2/9 + 17/18 yes or no
5/12 + 1/4 yes or no
1 1/6-1/3 yes or no. 2 - 1 1/3 yes or no
Answer:
Yes, No, Yes, No, No
Step-by-step explanation:
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Mark wants to buy shoes that cost 200 dollars. They have him a dicount for 20 dollars and he used his 2 percent coupen. How much did mark pay for the shoes
Answer:
$176.40
Step-by-step explanation:
Lets assume the order of events to be:
20 dollars discount first,
2% coupon discount, next
So, original cost is 200
Discount of 20 dollars, means that it now costs:
200 - 20 = $180
Now, we have a 2% discount coupon on it. We have to find 2% of 180 and subtract that from 180.
Note: 2% is 2/100 = 0.02
So,
180 * 0.02 = 3.6
So, final price would be: 180 - 3.6 = $176.40
Mark paid $176.40 for the shoes
Martha Alison and Scott buy 3.8 pounds of clay Martha used 1 /4 of the clay for a sculpture Scott used 2/5 of the remaining amount of clay to make a mug and Alison used 1.2 pounds of clay to make a bowl how many pounds of clay are they left with ?
They are left with 0.51 pounds of clay.
Step-by-step explanation:
Given,
Amount of clay bought = 3.8 pounds
Amount used by Martha = [tex]\frac{1}{4}\ of\ clay[/tex]
Amount used by Martha = [tex]\frac{1}{4}*3.8=0.95\ pounds[/tex]
Amount left after Martha's use= Total amount - amount used by Martha
Amount left = 3.8 - 0.95 = 2.85 pounds
Amount used by Scott = [tex]\frac{2}{5}\ of\ amount\ left[/tex]
Amount used by Scott = [tex]\frac{2}{5}*2.85=\frac{5.70}{5}[/tex]
Amount used by Scott = 1.14 pounds
Amount left after Scott's use = Amount left after Martha's - Amount used by Scott
Amount left after Scott's use = 2.85 - 1.14 = 1.71 pounds
Amount used by Alison = 1.2 pounds
Amount left = Amount left after Scott's use - Amount used by Alison
Amount left = 1.71 - 1.2 = 0.51 pounds
They are left with 0.51 pounds of clay.
Keywords: subtraction, fraction
Learn more about subtraction at:
brainly.com/question/1577690brainly.com/question/1578028#LearnwithBrainly
Express each of the following as the sum Of a whole number and a fraction 9/5
The fraction 9/5 can be expressed as the sum of 1 (whole number) and 4/5 (fraction).
Explanation:The fraction 9/5 can be expressed as a sum of a whole number and a fraction. First, divide 9 by 5 which will result in 1 with a remainder of 4. The 1 forms the whole number, and 4/5 forms the fraction. So, 9/5 is equivalent to 1 4/5, which means 1 (whole number) plus 4/5 (fraction) is equal to 9/5.
Learn more about Fractions here:https://brainly.com/question/10354322
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I need help getting the answer to 1484 divided by 28
Answer:
53
Step-by-step explanation:
Molly has 9 cups of flour. If this is -
of the number she needs to make bread, how many cups does she need?
struct the tape diagram by reading it backward. Draw a tape diagram and label the unknown.
Answer:
9 pounds of flour
Step-by-step explanation:
mix together
if the measure of two exterior angles on the same side of the transversal are 3x and 7x+10, find the value of x
Answer:
The value of x is 17°.
Step-by-step explanation:
The two exterior angles on the same side of the transversal are always supplementary.
Therefore, if the measure of two exterior angles on the same side of the transversal are 3x and 7x+10, then we can write
3x + (7x + 10) = 180°
⇒ 10x = 180° - 10° = 170°
⇒ x = 17°
Therefore, the value of x is 17°. (Answer)
In a certain Algebra 2 class of 30 students, 19 of them play basketball and 12 of them play baseball. There are 8 students who play both sports. What is the probability that a student chosen randomly from the class plays basketball or baseball?
Answer:
Probability that a student chosen randomly from the class plays basketball or baseball is [tex]\frac{23}{30}[/tex] or 0.76
Step-by-step explanation:
Given:
Total number of students in the class = 30
Number of students who plays basket ball = 19
Number of students who plays base ball = 12
Number of students who plays base both the games = 8
To find:
Probability that a student chosen randomly from the class plays basketball or baseball=?
Solution:
[tex]P(A \cup B)=P(A)+P(B)-P(A \cap B)[/tex]---------------(1)
where
P(A) = Probability of choosing a student playing basket ball
P(B) = Probability of choosing a student playing base ball
P(A \cap B) = Probability of choosing a student playing both the games
Finding P(A)
P(A) = [tex]\frac{\text { Number of students playing basket ball }}{\text{Total number of students}}[/tex]
P(A) = [tex]\frac{19}{30}[/tex]--------------------------(2)
Finding P(B)
P(B) = [tex]\frac{\text { Number of students playing baseball }}{\text{Total number of students}}[/tex]
P(B) = [tex]\frac{12}{30}[/tex]---------------------------(3)
Finding [tex]P(A \cap B)[/tex]
P(A) = [tex]\frac{\text { Number of students playing both games }}{\text{Total number of students}}[/tex]
P(A) = [tex]\frac{8}{30}[/tex]-----------------------------(4)
Now substituting (2), (3) , (4) in (1), we get
[tex]P(A \cup B)= \frac{19}{30} + \frac{12}{30} -\frac{8}{30} [/tex]
[tex]P(A \cup B)= \frac{31}{30} -\frac{8}{30} [/tex]
[tex]P(A \cup B)= \frac{23}{30}[/tex]
What is the reciprocal of the number 2/7
Answer:
7/2
Step-by-step explanation:
evaluate y=3^x for x=2
Answer:
y=9
Step-by-step explanation:
substitution x=2 in equation
y= 3^2
y=9
Final answer:
To evaluate y=3^x for x=2, substitute x=2 into the expression y=3^x to find that y=9.
Explanation:
The given expression is y = 3^x. To evaluate y for x = 2, substitute x = 2 into the expression:
y = 3^2
y = 9
Therefore, y = 9 when x = 2.
An equation is shown below: 4(2x − 3) = 4 Part A: What is the solution to the equation above? Show your work using inverse operations. (5 points) Part B: Check using substitution to make sure your answer is correct. (5 points)
Answer:
see explanation
Step-by-step explanation:
(A) Given
4(2x - 3) = 4 ( divide both sides by 4 )
2x - 3 = 1 ( add 3 to both sides )
2x = 4 ( divide both sides by 2 )
x = 2
(B)
As a check substitute x = 2 into the left side of the equation and if equal to the right side then it is the solution.
4(2(2) - 3) = 4(4 - 3) = 4(1) = 4 = right side
Hence x = 2 is the solution
Answer:
The solution of the given equation is x = 2.
Step-by-step explanation:
The given linear equation is,
[tex]4(2x-3)=4[/tex]
At first, we will eliminate '4' from the LHS by dividing both sides i.e., LHS and RHS by 4 because '4' is present in multiplication with the term containing unknown in LHS.
So, dividing both sides by '4', we get
[tex]\frac{4(2x-3)}{4} = \frac{4}{4}[/tex]
[tex]\implies 2x - 3 = 1[/tex]
Our next step will be to eliminate '3' from the LHS that is being subtracted from the term containg unknown variable. For this, we will add '3' on both sides of the above obtained equation.
So, adding '3' on both sides, we get
[tex]2x - 3 + 3 = 1 + 3[/tex]
[tex]\implies 2x = 4[/tex]
Now, we will eliminate '2' from the LHS that is in multiplication with the unknown variable 'x'.
For this, we will divide both sides of the above obtained equation by '2'.
So, dividing both sides by '2', we get
[tex]\frac{2x}{2}=\frac{4}{2}[/tex]
[tex]\implies x = 2[/tex]
CHECKING :
For this, we will substitute x = 2 in the LHS of the given equation and then check whether it is equal to RHS or not.
LHS = 4(2x - 3)
= 4(2 × 2 - 3)
= 4(4 - 3)
= 4 × 1
= 4
= RHS
So, the solution of the given equation is x = 2.
write an equation that represents (0,-1) and (3,-3
[tex]\bf (\stackrel{x_1}{0}~,~\stackrel{y_1}{-1})\qquad (\stackrel{x_2}{3}~,~\stackrel{y_2}{-3}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-3}-\stackrel{y1}{(-1)}}}{\underset{run} {\underset{x_2}{3}-\underset{x_1}{0}}}\implies \cfrac{-3+1}{3}\implies -\cfrac{2}{3}[/tex]
[tex]\bf \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-1)}=\stackrel{m}{-\cfrac{2}{3}}(x-\stackrel{x_1}{0}) \\\\\\ y+1=-\cfrac{2}{3}x\implies y=-\cfrac{2}{3}x-1[/tex]
Round 639.13787717 to 2 decimal places.
Answer: 639.14
Step-by-step explanation:
10. The measures of the bases of a
trapezoid are x2 – 19 and 10. The
measure of the midsegment is 8.
Find the value of x.
Answer:
The value of x is 2[tex]\sqrt{29}[/tex] .
Step-by-step explanation:
Given as :
The area of Trapezoid = x² unit²
The measure of base 1 = [tex]b_1[/tex] = - 19 unit
The measure of base 2 = [tex]b_2[/tex] = 10 unit
The height of the mid segment = 8 unit
Now, From the Area of Trapezoid
i.e Area = [tex]\dfrac{1}{2}[/tex] × (sum of opposite base) × height
Or, x² = [tex]\dfrac{1}{2}[/tex] × (19 + 10) × 8
Or, x² = [tex]\dfrac{8}{2}[/tex] × (29)
Or, x² = 4 × (29)
Or, x² = 116
∴ x = [tex]\sqrt{116}[/tex]
I.e x = 2[tex]\sqrt{29}[/tex]
Hence, The value of x is 2[tex]\sqrt{29}[/tex] . Answer
Final answer:
Using the properties of a trapezoid's midsegment being the average length of the bases, the equation (10 + (x² - 19))/2 = 8 was solved to find that x equals 5.
Explanation:
The question revolves around the properties of a trapezoid and its midsegment. In a trapezoid, the midsegment (also called the median) is the segment that joins the midpoints of the non-parallel sides and is parallel to both bases.
The length of the midsegment is the average of the length of the two bases, which can be expressed as (base1 + base2) / 2.
Given that the midsegment is 8 units long, and one base is given as 10 units, let the other base be expressed as x² − 19 units. The formula for the midsegment becomes:
(10 + (x² − 19))/2 = 8
Now we solve for x:
10 + x² − 19 = 16
x² − 9 = 16
x² = 25
x = ± 5
Since the measure of a base cannot be negative, the positive root is the realistic solution:
x = 5
find the value of x rounded to the nearest tenth the answers are 4,3.8,2.7,2.9
Answer:
x=4
Step-by-step explanation:
Missing picture is attached.
As we can see in the picture drawn, there are two cord insecting outside the circle.
∴ we will use Intersecting secant theorem.
When two secant lines intersect each other outside a circle then the product of the length of the chord and the length of the part outside the circle are equal.
Now, using the value in theoram as given in the picture.
⇒[tex]x\times 6= 3\times 8[/tex]
Dividing both side by 6
⇒ [tex]x= \frac{3\times 8}{6}[/tex]
∴x= 4
Which unit is not a unit of speed?
Circle your answer.
km/h
km
m/s
mph
Answer:
i think its km.
Step-by-step explanation:
(please correct me if im wrong)
5 - 3 = 15 or 7 +5 = 20 true or false
Answer:
False
Step-by-step explanation:
If Greg can build 1/7 of a brick wall in 1/12 of an hour whats his unit rate?
A: 1/84
B: 19/84
C: 1 5/7
D: 7
Final answer:
Greg's unit rate is [tex]1\frac{5}{7}[/tex] walls per hour, which is found by dividing 1/7 of a wall by 1/12 of an hour. The correct answer is option C: [tex]1\frac{5}{7}[/tex].
Explanation:
If Greg can build 1/7 of a brick wall in 1/12 of an hour, we want to find his unit rate, which is the amount of wall he can build per hour. To find Greg's unit rate, we divide the fraction of the wall built by the fraction of the hour spent building it. This calculation gives us:
Unit rate = (1/7) ÷ (1/12) = (1×12)/(7×1) = 12/7 = [tex]1\frac{5}{7}[/tex] walls per hour.
Therefore, the correct option is C: [tex]1\frac{5}{7}[/tex].