Answer:
r = 1
Step-by-step explanation:
we know that :

Then

Then

Then
5×12 = 4×(16-r)
Then
60 = 64 - 4r
Then
4r = 64 - 60
Then
4r = 4
Then
r = 1
Answer:
x=4
y=3
Step-by-step explanation:
Find the scale factor of the height:
6.5cm / 2.5cm = 2.6
Multiply the known pages by the scale factor:
150 x 2.6 = 390 pieces of paper.
Answer:
8 shifts.
Step-by-step explanation:
Brianna worked a total of 44 hours stacking shelves.
If she worked
hour shifts,
How many shifts did she work?
So 1 shift takes 5.5 hours
The number of shifts she worked in 5.5 hours is;
= 8 shifts.
Answer:
Step-by-step explanation:
-20=2(n-3)
-20=2*n-2*3
-20=2n-6
-20+6-2n
-14/2=n
-7=n