Let q and n represent the number of quarters and nickels respectively.

q=3n and .05n+.25q=1.6 These are the conditions in mathematical terms.

To solve, use the value of q from the first equation in the second equation to get:

.05n+.25(3n)=1.6 carry out indicated multiplication on left side

.05n+.75n=1.6 combine like terms on left side

.8n=1.6 divide both sides by .8

n=2, since q=3n

q=6

So Peggy had 2 nickels and 6 quarters.

3 0

3 years ago

6. Nicole deposits $2,136 in a såvings account paying 5% interest rate. To the

ValentinkaMS [17]

Answer: $3,166

Step-by-step explanation:

8 0

2 years ago

A 48 fluid ounce container orange juice cost $2.40. 60 fluid ounce container of orange juice cost $3.60. Which is the better buy

Allushta [10]

48 fluid ounce it is $0.40 per fl oz, while the other one is $0.60 per fl oz

4 0