Answer:
b equals 20
Step-by-step explanation:
b - 13 = 7
7 + 13 = b
7 + 13 = 20
4x = 37
divide each side by 4
x = 37/4
4 goes into 37 9 times with 1 left over
x = 9 1/4
Either the problem is incorrect or the answer choices are incorrect
Answer:
1/108
Step-by-step explanation:
One of the boys and one of the girls are siblings
1/9 × 1/12
1/108
"The perimeter P..." gives us one variable to work with.
"is" in this context almost always means "equals".
"the sum" we know we will be adding.
"twice the length l" gives us a variable and a coefficient.
"twice the width w" gives us a variable and a coefficient.
The equation for this is P=2l+2w
I hope in the future you can remember these tips! :)
3/6 look at the pic to understand