Answer:
13
Step-by-step explanation:
We replace each X with a 3, so
4 + 3 + 3 + 3
which equals to 13
Answer:
When y=7,9 the answer is yes when it = -10,-8 the answer is no.
Step-by-step explanation:
Simple substitution gets us the resulting values. for y=7 we get
which is true. For y=9 we get
which is also true. For the other values we get a negative number which is not a solution.
Answer:
Area = 1/2 base x Height
Step-by-step explanation:
Step-by-step explanation:
If 20 labourers=10 days
x labourers = 25 days
10x= 25×20

Cancelling out by 10 on both sides

Therefore, it takes 50 labourers to complete the work at the same rate in 25 days.
Answer:
Distributive Property: a(b+c) = ab+ac

<em><u>(3y+30)</u></em> is the right answer.