Solve the equation for x if ax + bx = c
x = c/(a + b)
x = (a + b)/c
x = c - a - b
x = c/(ab)
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OpenStudy (anonymous):
i need a awnser
OpenStudy (anonymous):
@iGreen
OpenStudy (igreen):
Oh, okay.
OpenStudy (igreen):
\(ax + bx = c\)
\(a + b = c\)
\(x = \dfrac{c}{a+b}\)
So your answer is A.
OpenStudy (anonymous):
thank you if i need you for more will you be willing to help.
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OpenStudy (igreen):
Of course. Just tag me.
OpenStudy (anonymous):
thanks
OpenStudy (anonymous):
The sum of Fred's age and ten is the same as twice his age minus 4. How old is Fred?
7 years old
6 years old
14 years old
18 years old
@iGreen
OpenStudy (igreen):
The answer is C.
Twice his age minus 4 = His age + 10
Just plug in 14 for his age..
Twice 14 minus 4 = 14 + 10
Twice 14 = 28
28 minus 4 = 14 + 10
24 = 14 + 10
24 = 24
So the answer is C!
OpenStudy (anonymous):
Solve the equation for r if |r| - 12 = 23
r = 11
r = -11, 35
r = -35, 35
r = 11, -11
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OpenStudy (anonymous):
is it b are c @iGreen
OpenStudy (anonymous):
huh
OpenStudy (igreen):
C
OpenStudy (igreen):
-35 and 35 are both solutions..
OpenStudy (anonymous):
Olga is trying to figure out the length of a pool at a hotel that is to be built. A one inch door in the model will become a 3 foot door in reality. If the length of the pool is 7 inches on the model, how long will it be when it is built?
21 feet
10 feet
23 feet
13 feet
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