Green family=15n
n is number of hours
Bryant family= 40x
x is number of hours
15n+40x=1450L
n+x=55
use simultaneous equations
(15n+40x=1450)-(15n+15x=825)
25x=625
x=25hours
n=55-x
n=55-25=30hours
Answer: how are you doing this tho
Step-by-step explanation:
Answer:
What's the picture?
If you provide the picture of the graph I can help
Convert to vertex form:-
= -0.04(x^2 + 39x)
= -0.04( (x + 19.5)^2 - 380.25)
vertex is at -0.04 * -380.25 = 15.21 yards
Maximum height is about 15.2 yards
Answer:
-12 and -5
Step-by-step explanation:
a+b=-17
b-a=7
b=7+a
a+7+a=-17
2a+7=-17
2a=-17-7
2a=-24
a=-12
-12+b=-17
b=-17+12
b=-5
so a and b are -12 and -5 respectively
