10x+2y=18
10x-7y=-18
Multiply the second one by -1
-10x+7y=18
Then add the two equations
10x+2y=18
+-10x+7y=18
----------------
9y=36
y=4
Plug that back into one of the equations above and solve for x
10x+2y=18
10x+2(4)=18
10x+8=18
10x=10
x=1
so your answer is x=1 and y=4 or (1,4)
Answer:
113:348
Step-by-step explanation:
i got it wrong cause i only put 113 but it showed this is the answer
Area of triangle is base x height divide by 2
8x4=32
32 divide by 2 is
16
Answer:
1 hour=18
2 hour=32
3 hour=54
4 hour=70
5 hour=88
so on so forth
Step-by-step explanation: Take however many hours you have and multiply it by 18. Don't forget to add the dollar sign!
Answer:
<h2>24 miles</h2>
Step-by-step explanation:
If each lap is 1/8 of a mile, then we have to do 3x8 to get our answer.
8x3=24
So hence, Rex has to go 24 times around his block to ride his bike for 3 miles.
Thanks!
