Answer:
10
Step-by-step explanation:
2x+5=25
25-5=20
20/2=10
The formula for volume always involves three dimensions.
In this case, the volume of a cube is
, where
is the side length of the cube.
To solve for that side length, you'd need to use a cube root.
Answer:
60
Step-by-step explanation:
7x+30+9x+42=104
16x+72=104
16x=104-72
16x=32
x=2
SO:
<BOC=9x+42=
9(2)+42=
18+42=
60
Answer:
45 minutes is 3/4 of an hour, so find 3/4 of 12.
Divide 12 by 4 to get 1/4 of 12. That is 3.
3/4 is 3 of those, so multiply it by 3 to get 9.
So, she will have biked 9 miles.