WILL MEDAL

Mia deposits either $5 or $3.50 into her savings account. She made 14 deposits equaling a total of $59.50.

How many times did she deposit $5 and how many times did she deposit $3.50?

Mia made ___
deposits of $5 and
___ deposits of $3.50 .. fill in the blanks

Question

WILL MEDAL

Mia deposits either $5 or $3.50 into her savings account. She made 14 deposits equaling a total of $59.50.
 
How many times did she deposit $5 and how many times did she deposit $3.50?
 
Mia made  ___ 
 deposits of $5 and    
 ___ deposits of $3.50 .. fill in the blanks

mysticfury · Answer

hello? anyone?

anonymous · Answer

Let x be the amount of $5 deposits and y be the amount of $3.50 deposits. Then 

$$x+y=14$$

Then 5x is the amount of money from $5 deposits and 3.5y is the amount of money from $3.50 deposits, so

$$5x+3.5y=59.50$$

mysticfury · Answer

okay i got that but now how do i solve it?

anonymous · Answer

Substitution is pretty straight forward here. solve the first equation for x then, sub in for x in the second equation

mysticfury · Answer

oh god i hate substitution :( i dont understand it at all

anonymous · Answer

ok, then choose a method you like. graph them and pick out the intersection point