Answer:
4 boys
Step-by-step explanation:
3 × y = 1 × 12
3y = 12
3y ÷ 3 = 12 ÷ 3
y = 4
Answer:
<em>Two adjacent angles are supplementary.</em>
Answer:
Step-by-step explanation:
First, we need to isolate y.
1. Subtract 12x from both sides.
-9y=-12x+135
2. Divide by -9 in order to isolate y.
3. Understand that perpendicular equations' slopes are opposite and reciprocal to the original equation. The slope of the original equation is , so the reciprocal and opposite (flip and change the sign) slope would be .
Answer:
6
Step-by-step explanation:
H = 10
L = 8
A = B = ?
By Pythogoras Theorem,
H^2 = L^2 + B^2
(10)^2 = (8)^2 + (B)^2
=> 100 = 64 + (B)^2
=> 100 - 64 = (B)^2
=> 36 = (B)^2
=> (B)^2 = 36
=> B = √36
=> B = 6
=> A = 6