ah, those are systems you want one variable to cancel out. I would time the bottom equation by -1 so x cancels then u solve for y. then u plug all back in to solve for x.
4,756 rounded to the nearest thousand is 5,000.
Answer:
a
the first answer
Step-by-step explanation:
P=1
7p + 13=20
-13 | -13
7/7
P=1
Answer:
He climbed 19 steps
Step-by-step explanation:
Let steps climbed in 9.5 seconds = z
If 24 steps = 12 seconds
then: z = 9.5 seconds
Using criss cross method
24 x 9.5 = 12 x z
228 = 12 z
z = 228/12
z = 19 steps
