Answer:
x = 3
Step-by-step explanation:
=> 4x-5x+9=5x-9
=> -x-5x = -9-9
=> -6x = -18
=> x = 18/6
=> x = 3
Step-by-step explanation:
If it cost $1200 to install 100 square feet of roofing, then it will cost $13200 to have 1100 square feet installed.
$1200/ 100 square feet multiply 11 on both sides
$13200/ 1100 square feet
<h3><u><em>
Please mark this as brinliest thank you!!!</em></u></h3><h3><u><em>
: )</em></u></h3><h3><u><em>
And as always, </em></u></h3><h3><u><em>
simplify bananas</em></u></h3>
A=12
120% of a =80% of b
120%a = 80%b
120a/100 = 80b/100
Divide through by 100
120a = 80b
Divide through by 80
120a/80 = b
But a=12
120x 12/80 = b
18 = b
b = 18
a+b = 12 + 18 = 30
Answer:
4
Order of Operations is what you have to use
