3 years ago

A customer pay 18 for a DVD that originally cost 20. What is the percent decrease in the cost of the DVD

1 answer:

8 0

The discount is $2. 2/20 is 0.1 or 1/10 which as a percentage would be 10%. The discount of $2 is <u><em>10%</em></u> off.

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A chef planning for a large banquet thinks that 2 out of every 5 dinner guests will order his soup appetizer.He expects 800 gues

Goryan [66]

320 cups of soup

Step-by-step explanation:

2:5 is a part to whole ratio.

2/5=x/800

so we cross multiply to get:

5x=1600

x=320

320 cups of soup

Hope this is helpful

6 0

3 years ago

10 3/4 -7 1/4 subtracting mixed numbers???

kirza4 [7]

Oh yeah the answer is 3 2/4 or 3 1/2 if you want to simplify.

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3 years ago

Owen is reading a science fiction book is 558 pages long if he reads 28Pages each day How many days will it take him to read the

hichkok12 [17]

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Step-by-step explanation:

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3 years ago

What is the inverse function of f(x) = x/x-2

kherson [118]

Answer:

The answer is:

y = x/x −2

6 0

2 years ago

Read 2 more answers

Can anyone help with this question pleasee

Vladimir [108]

Answer:

$y = 1$

Step-by-step explanation:

Given:

$a^{3y - 5} = \frac{1}{a^2}$

Apply the negative exponent rule

$a^{3y - 5} = a^{-2}$

The bases will cancel each other

$3y - 5 = -2$

$3y - 5 + 5 = -2 + 5$

$3y = 3$

$\frac{3y}{3} = \frac{3}{3}$

$y = 1$

7 0

3 years ago