Answer:
The answer is 15x+5
Step-by-step explanation:
1. Combine like terms (numbers with the same variable) (just add 7 & 8 and add an x)
2. Bring the rest down
3. After you combined like terms make sure you bring the variable down to it's proper spot
5. Hope this helps.. :)
Answer:
60
Step-by-step explanation:
given:
l = 10
b = 5
h = 2
to find:
2h(l + b)
substitute the given values of l , b and h
=2*2(10 + 5)
=4*15
=60
David purchased some cookies at the cost of
5 for $4 (5/4=1.25) and
sold them at 4 for $5(4/5=0.80).
To find cost per cookie subtract 1.25-0.80=0.45
David made a profit of $180 in total ( divide profit per cookie cost: 180/0.45= 400)
How many cookies did David purchase to make that much money?
He needed to make 400 cookie to make the profit of $180.
Answer:
r=15
Step-by-step explanation:
You have to get r by itself.
4500pi=4/3*pi*r^3
first divide pi out of the equation.
4500/pi= (4/3*pi*r^3)/(pi)
4500=4/3*r^3
now divide 4/3 out.
4500/(4/3)=(4/3*r^3)/(4/3)
3375=r^3
now you need to find the inverse of r^3
3375^1/3=r^1/3
15=r
Step-by-step explanation:
A famer wants to divide 8085 ha of grazing into 9 or 15 cramp of equal size