since y=-2x, we can substitute into the second equation to get:
-2x=-9x+21
add 9x
7x=21
divide by 7
x=3
Answer:4 hours
Step-by-step explanation:
7 divided by 5= 1.4
1.4x4=5.6
Answer:
The answer is 463 inch cubed
Step-by-step explanation:
you do 8 x 8 x 7 which will give you 448 volume for just the cube.
then you do 5 x 3 x 1 = 15
you add 448 with 15 you will get 463
What? There’s no picture or question...
I’m guessing that since 4 is equal to 124 then you divide it by 2 and then get 62.
