A sweater originally priced at $65 is on sale for 15% off. You also have a coupon that takes another $10 off. What percent of the original price do you pay?
Which of these methods could have been used to solve the problem?
CHECK

Solve the proportion: amount you pay$65
amount you pay
$65
= unknown percent100
unknown percent
100

Work backward by starting with $45.25, adding $10, and then adding 15% of $65.

Find the total amount you save with the 15% discount and the $10 coupon and subtract that from $65, the cost of the sweater.

I am a little bit confused by what it is asking in terms of choosing the correct method, so I will work through it and hope it answers your question, or comment and we can work through it together.

Original price = $65

Sale = 15%

Discount = $10

Take the sales price off first. There's a few ways to do this. You can multiply by the 15% and then subtract, or you can multiply by 85% because that is what would be left. Personally, I would do 85% because it is easier.

65 * 0.85   OR 65 *

55.25

Then subtract the $10 :

55.25 - 10

45.25

This is what you would pay. To find the percentage of the original price, we will plug in the new number over the old number, and then multiply by 100%:

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

answer: 21$

step-by-step explanation:

$42 / $14 = 3   (ratio 3: 1)

$7 x 3 = $21