5430/x=1200/12
Solve for x
X=543/10
Check
5430/(543÷10)=1200/12
It's true
The answer is d because
(534/10) 1200
X + 3x - 36.....x is the same as 1x....combine like terms
1x + 3x - 36 = 4x - 36 <==
3(x-1)=4(1+x)+5
3x-3=4+4x+5
3x-3=4x+9
-3x -3x
-3=x+9
-9 -9
-12=x
Answer:
They need 2 and 1/2 rolls.
Step-by-step explanation:
Area = length x width
A = l x w
A = 20 x 3
A = 60 ft²
If 60 ft² = 1 roll
What about 150 ft² = ?
= (150 x 1) ÷ 60
= 150 ÷ 60
= 2.5
= 2 and 1/2 rolls
Answer:
x = 2, y = 4
Step-by-step explanation:
3x - y = 2
3(2) - (4) = 2
6 - 4 = 2
x + y = 6
(2) + (4) = 6
6 = 6
