Answer/Step-by-step explanation:
During a sale, every item in a store is<u><em> 80% of its regular price</em></u>
[1] if a regular T-shirt is $10, what is its sale price?
80% x 10 = 8
10 - 8 = 2.
Hence if a regular T-shirt is $10, the sale price will be $2.
[2] The regular prices of five items are shown here. Find the sale price of each item.
Item 1: 1x80%=0.8 1-0.8=0.2
Item 2: 4x80%=4-3.20=.60
Item 3: 10x80%=10-8=2
Item 4: 55x80%=55-44=11
Item 5: 120x80%=120-96=24
Answer:
C
Step-by-step explanation:
Add 10x to both sides:
-10x - 135 = 117 + 2x
-10x - 135 + 10x = 117 + 2x + 10x
-135 = 117 + 12x
Subtract 117 from both sides:
-135 - 117 = 117 + 12x - 117
-252 = 12x
Divide both sides by 12:
-21 = x
So the answer is C.
Hope this helps!
We need to find the scale factor, which is given as
then, this means that 1 millimeter : 5 meters