3 years ago

A dollar bill is worth _ pennies. When written in decimal format, each penny can be written as __ of a dollar.

Mathematics

2 answers:

Gemiola [76]3 years ago

7 0

100 pennies, .01 of a dollar hope this helps

12345 [234]3 years ago

7 0

There are 100 pennies in a dollar. That means one penny is 1/100 or 0.01 of a dollar.

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How many pounds of cashew nuts worth 75 cents a pound must be mixed with 10 pounds of pecans worth $1.50 a pound to make a mixtu

Trava [24]

Let c represent the weight of cashews and p the weight of pecans.

Then c + 10 = total weight of the nut mixture.

An equation for the value of the mixture follows:

$1.50(10 lb) + $0.75c = (c+10)($1.00)

Solve this equation for c: 15 + .75c = c + 10. Subtract .75c from both sides:

15 = 1c - 0.75c + 10. Then 5=0.25c, and c = 5/0.25, or 20.

Need 20 lb of cashews.

Check: the pecans weigh 10 lb and are worth $1.50 per lb, so the total value of the pecans is $15. The total value of the cashews is (20 lb)($0.75/lb), or $15. Does (20 lb + 10 lb)($1/lb) = $15 + $15? Yes. So c= 20 lb is correct.

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3 years ago

A rectangle is 10 inches smaller than it is wide. The perimeter of the rectangle is 80 inches. Find the length and the width of

Oxana [17]

Answer:

l = 15 and w = 25

Step-by-step explanation:

$l - w = - 10$