4a + 3 = 15
- 3
4a = 12
÷ 4
a = 3
I hope this helps!
Answer:
d
Step-by-step explanation:
Since percent means parts out of 100 then x/100=x%
the easy way is to do it is to divide 591 by 2364
591/2364=0.25
0.25/1 multiply by 100/100=25/100=25%
the answer is 25%
Answer:
total number of boys in skool is 216
And
ratio of girls to boys is a 3:4
Step-by-step explanation:
let total no. of boys be X
ACCORDING TO QUESTION
ratio of boys to girls = 4:3
total number of girls = 162
now
4/3=X/162
or, 4×162= 3x
or, 4×162/3= X
hence
X = 216
therefore total number of boys is 216
and
ratio of girls to boys is =162/216
=3/4
=3:4
Answer:
D) Multiplication property of equality; Commutative property of addition
