X=7.5 (d)
Since the 16 side is proportional to the 12 side, x is proportional to 10. 16/12 is 1.3333 so 10/1.333 is 7.5.
For the top: 10(4-7), distribute the 10 to both 4 and -7
10(4) = 40
10(-7) = -70
For the bottom, - is the same as - 1
Distribute -1 to both 4 and -1
-1(4) = -4
-1(-1) = 1
(40 - 70)/(-4 + 1)
Simplify. combine the terms.
40 - 70 = -30
-4 + 1 = -3
Divide:
-30/-3 = 10
D. 10 is your answer
hope this helps
Answer: Original price = $43.10, Increase = $19.40, Final price = $62.50
<u>Step-by-step explanation:</u>
Let x represent the original price, then
8x(1.45) < $500
x < $43.10
Increase is 0.45x
0.45($43.10)
= $19.40
Final price is Original + Increase
$43.10 + $19.40
= $62.50
Answer:
Step-by-step explanation:
y=x^2+x-30
y=x^2-(6-5)x-30
y=x^2-6x+5x-30
y=x(x-6)-5(x-6)
y=(x-5)(x-6)