The scale factor is the first choice, 5/9.
This is because if you multiply 18 x 5/9, You get 10.
The first one is 60 because equal sides mean equal angles and all angles in a triangle add up to 180 so...
180 ÷ 3 = 60
Answer:
The number covered by the car is 87.
Step-by-step explanation:
All you have to do is turn the picture upside down, revealing a bunch of numbers in a row.
Answer:
<u>x= -7 , y= 9</u>
Steps:
4x+3y=-1
5x+4y=1
First, multiply the top equations by -5, and the bottom by 4 to get :
-20x-15y=5
20x+16y=4
Then, you’re going to add the two equations with them being on top of each other so you can easily see what cancels out :
-20x-15y=5
+ 20x+16y=4
———————
0+1y=9
From this, you get :
y=9
Now that you have one variable, find x by substituting 9 for y in one of the equations, I choose :
4x+3y=-1
So :
4x+3(9)=-1
Then simplify by multiplying 3 and 9 :
4x+27=-1
Then subtract 27 on each side :
4x=-28
Then, divide by 4 to get that :
x= -7
Hope this helps!!