X for number of true/false questions and y for number of multiple choice questions:
3x+11y=100
x+y=20
Solve the system and the answer is 5 multiple choice questions.
I think its b the local property tax
5(2x-3)=60
2x-3=12
2x=12+3
2x=15
x=15/2
<span>5(x - 3) + 2x = 41
</span>distribute the 5 to both x and -3
5x - 15 + 2x = 41
5x + 2x - 15 (+15) = 41 (+15)
5x + 2x = 41 + 15
7x = 56
7x/7 = 56/7
x = 8
hope this helps
In math
"is" means equals (=)
"of" means times (x)
x is 25% of 104
x = 25% x 104
x = .25 x 104
x = 26
He was 26 years old