Answer:
divide by 3 i think
Step-by-step explanation:
hope this helps!
<span>It
took sergio 3 hours to read 7 chapters of a book. If he continues reading at a
constant rate and the chapters are similar in length, how many hours will it
take sergio to complete the entire book if it is 15 chapters long?
Let’s first solve Sergio’s rate of reading
=> 7 chapter for 3 hours
=> 3 / 7 = .43 hours
Unit rate = 1 chapter for .43 hours
=> .43 hours * 15 = 6.43 hours,
Thus, he can finish reading 15 chapters for 6.43 hours.,</span>
Answer:
Step-by-step explanation:
This is a proportion question. You can take either of the other sides besides N to calculate the ratio. You need to use corresponding sides.
Here is the proportion
N/5 = 18/8
Multiply both sides by 5
N = 5 * 18/8
N = 90/8
N = 11.25
Answer:
25
Step-by-step explanation:
150 gallons = 4 * 150 = 600 quarts.
You then put 24 of these quarts into a shipping box.
600 / 24 = 25
That means you can get 25 full cases from 150 gallons.
Q.1 x-2/5=7
divide -2/5 which is -0.40
x-0.40=7. Move -0.40 to the right side of the equal sign and that becomes +0.40
x=7+0.40 . 7+0.40 is 7.4
x=7.4
Q.2 2.1r=6.174
divide 2.1 by both sides which 2.1r divided by 2.1 is 1r and 6.174 divided by 2.1 is 2.94
r=2.94
Q.3
equation: 2/3 = 32 2/3 d
Q.4 x9=3/5
3/5 is 0.60
x9=0.60
divide 9 by both sides. 9x divided by 9 is 1x and 0.60/9 is
0.0
6666 (the 6 is continuing)
x=0.06666
Q.5
x=-3
Q.6
7.25 =0.5x
divide 0.5 by both sides. 0.5x divided by 0.5 is 1x and 7.25 divided by
0.5 is 14.5
x=14.5
Q.7
the expression: 7-9m
Q.8
answer is C
Q.9
(x2) + (10(2))