Answer:
the answer is 4.5. hope this helps
Answer:49+2m
Step-by-step explanation:
49+2m
Increase,another way to say addition
Twice means “two times”
A number would be a variable since it’s unknown
They rode for 7 hours and traveled 400 kilometers.
Divide:
400 / 7 = 57.14
Answer = 57.14
Hope this helped☺☺
So we have
y=-2x-6
y=x+9
elimination
multiply second by e
2y=2x+18
just add them
y=-2x-6
<u>2y=2x+18 +
</u>3y=0x+12
3y=12
divide by 3
y=4
subsitue
4=x+9
subtract 9
-5=x
x=-5
y=4
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