125 ÷ 7.75 = 16.13
So, he will need to save for 17 weeks to be able to afford the phone.
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Answer:
The value of the variable for which the equation is true (4 in this example) is called the solution of the equation. We can determine whether or not a given ...
Step-by-step explanation:
Y - (-4) = (5 - (-4))/(2 - (-1)) (x - (-1))
y + 4 = (5 + 4)/(2 + 1) (x + 1)
y + 4 = 9/3 (x + 1)
y + 4 = 3(x + 1)
y + 4 = 3x + 3
y = 3x + 3 - 4
y = 3x - 1