Step-by-step explanation:
side = 9 ft
the volume of a cube is
V = side³
if V decreases by a to V', then each side decreases by side - cubic root of V'.
V = 9³ = 729 ft³
V' = (729 - 0.3) ft³ = 728.7 ft³
side' = cubic root (728.7) = 8.998765263... ft
difference side - side' = 0.001234737... ft
so, the change rate at 9 ft is
0.001234737... ft/min.
We translate the data of Mary as (15,90) and (8, 62). In this case, the slope is (90-62) / (15-8) or equal to 4. The equation is y-y1 = m (x-x1) where m is the slope. Substituting, y - 90 = 4 (x-15) or equal to y = 4x + 30. <span> Lisa receives half the base amount that Mary does, but she is paid twice as much per student so the equation that of Lisa is y = 8x + 15.
when x is 20
</span><span>Mary : y = 4*20 + 30 =110
</span>Lisa : y =<span> 8*20 + 15 = 175.
Hence Lisa earns more.</span>
92+65=157
157-14=143
Answer is 143
hope this helps:)
Timothy will be 20 in five years and albert will be 80
The correct answer should be 36% or 9/25. Hope this helps!