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UkoKoshka [18]
2 years ago
9

If 4w = 12, what is the value of 5w + 10?

Mathematics
1 answer:
Vika [28.1K]2 years ago
3 0

Answer:

25

Step-by-step explanation:

If 4w=12, then W would equal 3.

5 times 3 = 15

15+ 10= 25

Hope this helps! Have a great day :)

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Xanthia can read 100 pages per hour and Molly can read 50 pages per hour. If they each read the same book, and the book has 225
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Answer:

135 minutes

Step-by-step explanation:

Let

y -----> the number of pages to finish reading the book

x ----> the number of hours

we know that

The linear equation in slope intercept form is equal to

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where

m is the unit rate or slope of the linear equation

b is the y-intercept or initial value

In this problem we have

<em>Xanthia</em>

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b=225\ pages

y=-100x+225 ----> the slope is negative because is a decreasing function

For y=0

substitute and solve for x

0=-100x+225

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x=2.25\ hours ---> Xanthia's time to finish reading the book

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y=-50x+225 ----> the slope is negative because is a decreasing function

For y=0

0=-50x+225

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x=4.5\ hours --- Molly's time to finish reading the book

To find out how many more minutes than Xanthia would it take for Molly to finish reading the book, subtract Xanthia's time from Molly's time

4.5\ h-2.25\ h=2.25\ h

Convert to minutes

Multiply by 60

2.25\ h=2.25(60)=135\ minutes

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