Answer:
x = 7
Step-by-step explanation:

distribute

combine like terms


x = 7
Answer:
1/3 part of 120 hours....
Answer:
a) 40
b) 80
c) 77
d) 48
Step-by-step explanation:
To find the missing numerator, multiply the equation by the denominator of the fraction with the missing numerator.
a) (10/15)(60) = (x/60)(60)
40 = x
__
b) (x/180)(180) = (4/9)(180)
x = 80
__
c) (7/11)(121) = (x/121)(121)
77 = x
__
d) (x/144)(144) = (2/6)(144)
x = 48
48=8•6
6•8=48
HOPE THIS HELPS
Answer:
Step-by-step explanation:
Example Equation of an ellipse with horizontal major axis with center at (0,0):
x%5E2%2Fa%5E2%2By%5E2%2Fb%5E2=1
For given problem:
b=20
b^2=400
a=30
a^2=900
equation: x%5E2%2F900%2By%5E2%2F400=1
y%5E2%2F400=1-x%5E2%2F900