Answer:
x = - 
Step-by-step explanation:
Multiply through by 4 to clear the fraction
15 - 28x = 36 ( subtract 15 from both sides )
- 28x = 21 ( divide both sides by - 28 )
x =
= - 
Answer:
5 and 7/12
Step-by-step explanation:
2 1/4=3/12
+3 1/3=4/12
5 7/12
earnings = $7 per hour
He needs at least $230 . This means he needs an amount greater than or equals to $230.
let
t = hour many hours he works
Therefore,


He needs to work approximately 33 hours or more to get at least $230 for his sterio. This means t is greater than or equals to approximately 33.
Answer:
Katy is 6 cm taller.
Step-by-step explanation:
Katy: 1 meter=100cm
100cm+18cm=118cm
Beth: 112cm
118cm-112cm=6cm
I am gonna have to go with Latisha's answer.
(x - 3)(x + 4) = x^2 + 4x - 3x - 12 = x^2 + x - 12.......and 4(-3) = -12, -3 + 4 = 1....and the factors are correct