Area = length * width
(10x + 6)(9x + 8)
Multiple (I used rainbow method)
10x * 9x = 90x^2
10x * 8 = 80x
6 * 9x = 54x
6 * 8 = 48
90x^2 + 80x + 54x + 48
90x^2+ 134x + 48
The area is 90x^2 + 134x + 48
So first you multiply 2 and 4x to get 8x. Then you multiply 2 and 5 to get 10. So the problem will look like:
8x+10=90
Then you subtract 10 on both sides of the problem to get:
8x=80
And then divide 8 on both sides to get
x=10
<span>2x+y=8
2x+x-7=8
3x=15
x=5
y=5-7
y=-2</span>
Answer:
why are the number wierd i do it but idk the temp for the second one
Step-by-step explanation:
Answer: x=8
Step-by-step explanation:
This is a simple cross multiplication problem:
12/15=x/10
=> 15x=120
=> x=8
There is your answer.
Have a nice day! :)