Percents are out of 100, so 20% is the same thing as 20/100 or 0.2 as a decimal. To find how much he saves from the coupon, multiply the cost of the markers by 0.2.

2.85 * 0.2 = 0.57

The answer is $0.57

7 0

3 years ago

From 1994 to 1995 the sales of a book decreased by 80%. If the sales in 1996 for the same as in 1994, By what percent did the in

zheka24 [161]

Answer:

400%

Step-by-step explanation:

Let the sales be "100" in 1994

Since, it decreased 80%, the sales was:

80% = 80/100 = 0.8

0.8 * 100 = 80 (decreased by 80)

So, it was

Sales in 1995: 100 - 80 = 20

Sales in 1996 was same as in 1994, so that's 100

Thus,

Sales in 1994: 100

Sales in 1995: 20

Sales in 1996: 100

We need to find percentage increase form 1995 to 1996, that is what percentage increase is from 20 to 100?

We will use the formula:

$\frac{New-Old}{Old}*100$

Where

New is 100

Old is 20

SO, we have:

$\frac{New-Old}{Old}*100\\=\frac{100-20}{20}*100\\=4*100\\=400$

So, it increased by 400%

3 0

4 years ago

PLEASE HELP ME WITH THIS ILL GIVE U BRAINLEST

Kitty [74]

Answer:

y=-2/5x+5

Step-by-step explanation:

5 0

3 years ago

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