Let x = small number
y=large numebr
x+y = 90
y-4x=15
substitute
we get:
x=21
y=90-21 = 69
Answer:
1) x+5
(4)+5 =
9
2) 3x
3(4)
12
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
Since, Sophia had three pages of homework and she only has three left you can set up an equation to solve. The equation would be 10=x-3, then you just solve the equation which would be 7, hope that helped.
The exponential equation (in thousands) is:

plug in t=3 yrs, and solve for 'r'.

Find value of car when t = 10
Answer:
Yes.(16.088m combined jump)
Step-by-step explanation:
Combining jumps=4.76+5.428+5.9=16.088
16.088>16
Therefore Juan qualified for the competition