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Crazy boy [7]
3 years ago
15

When Jennifer spent 3/7 of her money, she has $72 left. How much money did Jennifer start with?

Mathematics
1 answer:
weeeeeb [17]3 years ago
3 0
After spending 3/7, she is left with;
4/7
Now, 4/7 is equivalent to 72
7/7 is equivalent to?
\frac{7*72}{4}
= 126 dollars
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Drag the vertices of the triangle below to draw a right triangle with side lengths 5, 12, and 13.
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Read 2 more answers
Savannah earns $247.00. How many hours did she work?
vivado [14]

Answer:

1.  8.25

2.  Savannah

3.  

<u>Earnings of Savannah:</u>   $190

<u>Earnings of Greg:</u>   $180

<u>Earnings of Kevin:</u>   $165

4.  26 Hours

5.  55.55 hours (or 56 hours)

Step-by-step explanation:

<em><u>Full Question Shown in the Image Attached.</u></em>

<em><u /></em>

1.

Constant of Proportionality is the constant value (k) of two proportional quantities.

Here, it is hours vs. wage.

It is usually y divided by x.

In this problem, hours worked is "x" and wage is "y". We can take the first row of Kevin's wages from table and find the constant of proportionality.

\frac{Wage}{Hour}=\frac{16.5}{2}=8.25

Thus, the constant of proportionality is 8.25

2.

We can find the highest hourly wage by first finding the unit rate, or the hourly wage for each person. Then we will compare between the 3 person.

<u>For Savannah:</u>

We divide the total wage (Earned Column) divided by Hours.

\frac{19}{2}=9.5

Hourly wage is 9.5

<u>For Greg:</u>

We do the similar division shown below:

\frac{27}{3}=9

Hourly wage is 9

<u>For Kevin:</u>

Again, doing the same process, we get:

\frac{16.5}{2}=8.25

Hourly wage is 8.25

By comparing the hourly wages of 3 people, we see that the highest hourly wage is that of Savannah's.

3.

We know hourly wage for each person. To know how much each one makes if they work 20 hours, we have to multiply 20 with their respective hourly wages.

<u>Earnings of Savannah:</u>  20 * 9.5= $190

<u>Earnings of Greg:</u>  20 * 9 = $180

<u>Earnings of Kevin:</u>  20 * 8.25 = $165

4.

Since she earn's $247 and her hourly wage is 9.5, we can find the hours she worked by dividing her earnings (247) by the hourly wage (9.5). Hence,

\frac{247}{9.5}=26

Thus, Savannah worked 26 hours

5.

For Greg to earn 500 dollars, we need to divide his earnings (500) by his hourly wage, which is $9 per hour. Thus we have:

\frac{500}{9}=55.55

So, Greg needs to work 55.55 hours to earn $500. If fractional hours are not possible, then Greg needs to work 56 hours.

7 0
3 years ago
1-P(not X) is the same as
noname [10]

Answer:

idk sorry

Step-by-step explanation:

6 0
3 years ago
Please help thank you.
Cloud [144]
Question 1:
All sides of an equilateral triangle are equal.
7x - 5 = 3x + 15
Add both sides by 5 and subtract both sides by 3x
4x = 20
x = 5
(Whoa! Watch out for the first choice! We're looking for the length of a side, not the value of x)
Plug x = 5 into 3x + 15.
You get 30. All the sides have a length of 30 in.
The last choice is your answer.

Question 2:
Draw it (or just look at the image).
I'm a terrible artist.
Angle CAB = Angle ACB
Angle CAB + Angle ACB + Angle ABC = 180
2 * Angle CAB + Angle ABC = 180
2x - 6 + 4x - 3 = 180
6x = 189
x = 31.5
(Again! Watch out! We're not looking for the value of x!)
Angle CAB = Angle ACB = x -3 = 31.5 - 3 = 28.5
The first choice is your answer.

Question 3:
The second choice is your answer.
There's not much explanation... That's what it's called.

Have an awesome day! :)

4 0
3 years ago
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