Answer:
i think it is D
Step-by-step explanation:
i hope this helped!
p.s it would be cool if you gave me brainliest.
Answer:
They do because y is always 4 times of x.
Step-by-step explanation:
Each book costs $15. since he had 18 dollars left, you can subtract 18 from 108. then divide that answer by 6. 90/6 = 15.
Hope that helped!
2 goes into 400, that is
,
However, 2 goes into 400,
200 times.
Answer:
Step-by-step explanation:
x+y = 175
y = 175 - x
f(x) = (x+3)(y+4)
= x(175-x) + 3(175-x) + 4x + 12
= 175x - x² + 525 - 3x + 4x + 12
= -x² +176x + 537
f'(x) = -2x + 176
maximum when x = 88
y = 175-x = 87
