Marco solved this problem: a coin purse has quarters and dimes totaling $5.40. if the purse has 30 coins, how many of each coin are in the purse? complete the statement about marco’s solution. pennies nickels dimes quarters

is the number of quarters and is the number of dimes

Step-by-step explanation:

we know that

Let

x-----> the number of dimes

y------> the number of quarters

we know that

-----> equation A

----Isolate the variable y

-----> equation B

Substitute equation B in equation A

Find the value of y

therefore

is the number of quarters and is the number of dimes

29933333.33

step-by-step explanation:

they used 313 gallons of paint