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3 years ago

Piggy Bank

Mathematics

1 answer:

aliya0001 [1]3 years ago

4 0

Answer:

see the explanation

Step-by-step explanation:

The correct question in the attached figure

Let

q ----> the number of quarter coins in the piggy

d ----> the number of dollar bills in the piggy

we have

$5q=d$ ----> equation A

$8q+d=91$ ----> equation B

Solve the system by substitution

substitute the value of d of equation A in equation B

$8q+(5q)=91$

solve for q

combine like terms

$13q=91$

divide by 13 both sides

$q=7$

Find the value of d

$d=5(7)=35$

therefore

The number of quarter coins in the piggy is 7 and the number of dollar bills in the piggy is 35

The total value in the piggy is

$\$0.25(7)+\$35=\$36.75$

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