What is the value of 3x^2– 7x + 9 when x = 4?
1 answer:
Answer:
29
Step-by-step explanation:
just substitute x with 4 in the equation :)
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Answer:
y = 105x
Step-by-step explanation:
$315 ÷ 3 = $105 per hour
$525 ÷ 5 = $105 per hour
Constant of Proportionality is $105 in both cases.
y = kx
y = 105x
Answer:
b=10, a=13
Step-by-step explanation:
let s number of yellow = a
number of blue = b
we have
a+b =23
2b - a = 7
->a+b +2b -a = 23+7
-> 3b = 30
->b = 10
->a = 13
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Step-by-step explanation: