-4 = r/20 -5Solve for r. Show your steps

Mathematics

2 answers:

Delvig [45]3 years ago

3 0

-4 = r/20 - 5

Add 5 to both sides

1 = r/20

Multiple by 20 on both sides

20 = r

Paladinen [302]3 years ago

3 0

Answer:

r = 20

Explanation:

-4 = r/20 - 5

Simplify both sides of the equation

-4 = r/20 - 5

-4 = 1/20r + -5

-4 = 1/20r - 5

Flip the equation

1/20r - 5 = -4

Add 5 to both sides

1/20r - 5 + 5 = -4 + 5

1/20r = 1

Multiply both sides of the equation by 20

(20)1/20r = 1(20)

r = 20

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Reggie bought a pair of hiking boots that were discounted by 30% off the original price. If the original price was $66.00, what

Free_Kalibri [48]

Answer:

$46.20

Step-by-step explanation:

We can create a proportion to find the sale on the original price. A proportion is an equation where two ratios are set equal to each other. We create two fractions using the prices and percents. If the price is discounted by 30% then we pay 70% of the price.

$\frac{70}{100} =\frac{x}{66}$