The distributive property of multiplication is a very useful property that lets you simplify expressions in which you are multiplying a number by a sum or difference. Multiply, Combine, Solve.
Answer:
38%
Step-by-step explanation:
3/8=0.375 move decimal twice right, round the 7 to an eight (8)
Cross multiply
15/18 = x/100
100 • 15/ 18 = x
x = 83.333333 %
Answer:
1=z-9
2=9+z
3=9/z
4=9z
Step-by-step explanation:
Answer:
∠B = 86°
Step-by-step explanation:
Given ∠A and ∠B are supplementary angles.
That is , ∠A + ∠B = 180°
( 6x + 10)° + ( 4x + 30)° = 180°
6x + 10 + 4x + 30 = 180
10x + 40 = 180
10x = 180 - 40
10x = 140
x = 14
Therefore, ∠A = (6x + 10) ° = (( 6 x 14) + 10)° = 94°
∠ B = ( 4x + 30)° = (( 4 x 14) + 30)° = 86°