Idk seriously i suck at math but i use photomath it is a really good app u should try it
For this case, the first thing we must do is define variables:
x = number of quarters
y = number of dimes
We now write the system of equations:
x + y = 28
0.25x + 0.10y = 4.05
Solving the system of equations we have:
x = 8.33
y = 19.66
Rounding:
x = 8
y = 20
Answer:
the college student has:
8 quarters
20 dimes
Answer:
I'm pretty sure the answer is D
Answer: 12
Explanation: x will be the number of sales the sales man had. so this is the equation 65x = 40 +300
65x -40x = 25x
25x = 300 then divide by 25
25 25
x = 12
= 0.02 is the answer
