Answer:
1. 20, 10, 5, 4, 2
2. 20
2nd page
Common factors of 12,48
2,3,4,6,12
GCF:12
Common factors of 12,72
2,3,4,,6,12
GCF:12
Common factors of 72,48
2,3,4,6,8,12,24
GCF:24
Common factors of 12,48,72
2,4,6,12
GCF:12
Last page is
D I think I am not sure
Answer:
5x(−7yz+4y+3)
Step-by-step explanation:
Answer:x=2y+6
Step-by-step explanation:
Really weird that y is the number of years but ok
Answer:
The width of the piece is 11 inches
Step-by-step explanation:
Let
x ----> the length of the rectangular piece of aluminum in inches
y ----> the width of the rectangular piece of aluminum in inches
we know that
The perimeter of the rectangular piece of aluminum is equal to

we have

so

simplify
----> equation A
----> equation B
Solve the system by substitution
substitute equation B in equation A
solve for y
therefore
The width of the piece is 11 inches
(4/7)-(1/3)
(12/31)-(7/21)
(5/21) is left
Or
In decimal form
(4/7)=0.571
(1/3)= 0.333
0.571-0.333
=0.238