20 + (0.4 × 15) + 12 + (0.4 × 10) = 20 + 6 + 12 + 4 = 42
20 + 15 + 12 + 10 = 57
57 - 42 = 15
15 ÷ 57 × 100 = 1500 ÷ 57 = 26.3
Ans = $42.00, 26% off ...
<h3>
Answer: Choice D. (3p, 3p+4) </h3>
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Work Shown:
f(x) = x+4
y = x+4 ..... since y = f(x)
y = 3p+4 .... replace x with 3p, because x = 3p
(x,y) = (3p, y) .... replace x with 3p
(x,y) = (3p, 3p+4) ... replace y with 3p+4
It is equal to 21/2 which is a rational number
Answer:
x = 7/12
Step-by-step explanation:
We start off by multiplying both sides by 4:
4(x-2) = 3(2-x)
Distribute the 4 and the 3:
4x - 8 = 6 - 3x
Bring all the terms with the x at the first side:
4x + 3x = 6 + 8
7x = 12
x = 7/12
