Answer:
hope this helps! :)
Step-by-step explanation:
4x=36
divide both sides of the equation by 4
4x / 4 = 36 / 4
Any expression divided by itself equals 1
x= 36 / 4
Calculate the quotient
36/4 = 9
<u>x=9</u>
Answer:
-0.25 or -¼
Step-by-step explanation:
-20c = 180
-20c/-20 = 180/-20
c = -0.25 or -¼
Answer:
PE = 102.9 Joules
Step-by-step explanation:
PE = mgh
= (7.0 kg)(9.8 m/s^2)(1.5 m)
= 102.9 Joules
9514 1404 393
Answer:
D
Step-by-step explanation:
Solve x = f(y) for y.
x = ∛(y/9) -4
x +4 = ∛(y/9) . . . . . add 4
(x +4)³ = y/9 .. . . . . cube
9(x +4)³ = y . . . . . . multiply by 9
The inverse function is ...
f⁻¹(x) = 9(x +4)³ . . . . . matches the last choice
# of students who wore red = 150
# of students who did not wear red = 250
Total #. of students = 150 + 250
= 400
Percentage of students who wore red =
(# of students who wore red/Total #) * 100 = (150/400) * 100 = 37.5
∴ No of students who wore red = 37.5%
