Maybe 30, it’s hard to tell
Answer:
Step-by-step explanation:
Another way to state the composition of functions is, in this case, f(g(2)). Which means we will evaluate the g function at an x value of 2, then take that solution and sub it into the f function for x.
g(2) = 2(2) + 2 and
g(2) = 6. Now take that and sub it into f for x:
f(6) = 6(6) and
f(6) = 36
f(g(2)) = 36
Answer:
a) 18 grapefruits
b) 6 grapefruits
Step-by-step explanation:
a) n = 14.4 / 0.80 = 18 grapefruits
b) n = (14.4 / 3) / 0.8 = 6 grapefruits
Quarters = x
Dimes = y
A) X + Y = 27
B) .25X + .10Y = 4.50
Multiplying equation B by -4
B) -X -.4 Y = -18 then adding it to A)
A) X + Y =27
we get
.6 Y = 9
Y = 15
Then inputting this into equation A)
A) X + Y = 27
A) X + 15 = 27
X= 12