Answer:
143 oil changes
Step-by-step explanation:
We first find the unit rate.
(91 oil changes)/(7 days) = 13 oil changes/day
Since we want to know the number of oil changes in 11 days, we multiply the unit rate by 11 days.
13 oil changes/day * 11 days = 143 oil changes
Answer:
Remainder is 425
Step-by-step explanation:
Let the two numbers Marsha has be A & B
From the question, we have the first equation as
A ÷ 70 = 64
Multiply both right and left sides by 70, we have:
A = 70 * 64 = 4,480
A = 4,480
From the question, we have the second equation as:
B ÷ 105 = 99
Multiply both left and right sides by 105, we have:
B = 105 * 99 = 10,395
B = 10,395
Remainder = (A + B) ÷ 35 = (4,480 + 10,395) ÷ 35
Remainder = 14,875 ÷ 35 = 425
Remainder = 425
Width=w
length=l
w+2=l
2(w+l)=88
2(w+w+2)=88
2(2w+2)=88
4w+4=88
4w=84
w=21
21+2=23
The length of a rectangle if the perimeter is 88 inches and the length is 2 inches more than the width is 23.
The equation is y=mx+c
C=8
M=-1
