Question

elaine has 88 coins in a jar. they are all 5 cent and 10 cent coins. the total value of the coins is $7. how many of each type of coin does elaine have?

Answer 1

Answer:

Step-by-step explanation:

According to the question we will consider two variables x and you for no of 5cents and 10 cents coins respectively.

So we frame the equation as

Equation 1

x+y=88( because total no of coins are 88)

Equation 2

5x+10y=700( because total money value from the denomination of coins is 700 cents or 7 dollars)

Multiplying equation 1 by 10 and Substrating equation 2 from it

10x+10y=880

-5x+10y= 700

Gives 5x=180

Or x=36

y=88-36=52

Therefore there are 36 5 cents coins 52 10 cents coins