Question

Raven plans to increase the price of each item in her store by 10%. Which the following sets of steps could Raven use to find the new price of each item. Place a checkmark in the box next to each correct set of steps.

A. Multiply the price of each item by 10%
B. Multiply the price of each item by 1.1
C. For each item, multiply its price by 0.1 and then add that product to the original price of the item.
D. Multiply the price of each item by 0.9
E. For each item, divide the price by 10 to find 10% of the item and then multiply that quotient by 11 to find 110% of the origional price.

Answer 1

Correct Answer: B, C

Choice A only finds the amount that is increased by, not the new price

Choice D is if the original price is discounted by 10%

The second part of Choice E does not make sense

Basically, here is how you find the new price:

Let the original price be x.

New Price = x * (1 + 10%) = x * (1 + 0.1) = x * 1.1

Answer 2

Explanation:

B is correct as 1.1 = 110%

C is correct as adding (0.1 multiply original price) = 1.1 = 110%

E is correct as dividing original price by 0.1 then multiplying by 11 = 1.1 = 110%