KnMcdonaldk93906

02.08.2019 • 

Mathematics

Omar and caleb each had a repair made on their cars. the initial cost of each repair is $1,000. omar and
caleb each have two coupons. each of them uses both of his coupons toward the cost of the repair. one
coupon is for $80 off the repair cost. the other coupon is for 15% off the repair cost. omar and caleb use their
coupons in a different order, as shown below.
omar uses the $80 off the repair cost coupon first. he then uses the 15% off the repair cost coupon on
the remaining balance.
caleb uses the 15% off the repair cost coupon first. he then uses the $80 off the repair cost coupon on
the remaining balance.
who paid the least amount of money for his car repair and how much less did he pay?

Ответ:

bmr12

15.03.2022

Mathematics

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Caleb paid less than Omar by $12.

Step-by-step explanation:

The initial cost of each repair is $1,000.

One  coupon is for $80 off the repair cost. The other coupon is for 15% off the repair cost.

Case 1:

Omar uses the $80 off the repair cost coupon first. He then uses the 15% off the repair cost coupon on  the remaining balance.

Step 1:

Step 2: dollars

Case 2:

Caleb uses the 15% off the repair cost coupon first. He then uses the $80 off the repair cost coupon on  the remaining balance.

Step 1:

Step 2: dollars

Now, comparing the values we can see that Caleb paid less.

He paid less by dollars.

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Ответ:

godchaux15395

06.09.2020

Mathematics

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For 15 to 20, change the equation from y=mx+b into mx-y=-b
Example: 15) y=-5x+2 into -2=-5x-y or 2=5x+y
For 21-29, the numbers in the parenthesis are coordinates (x, y) so uh the equation y=mx+b plug in the m that is given and x and y and then solve for b to complete the equation
Ex: 21) (-8,3) m=2
Y=mx+b
3=2(3)+b
3=6+b
-3=b
So y=2x-3
Do the same to the others

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