Answer:
Step-by-step explanation:
The error is in the second step. For some unknown reason, the x was dropped and the 3 was subtracted from the 7.
It should be
9x +3x + 12 = 7
12x + 12 = 7 Subtract 12 from both sides.
12x + 12 - 12 = 7 - 12 Combine
12x = -5 Divide by 12
12x/12 = -5/12
x = -5/12 or x = - 0.4167
5 years because when you divide 90 by 18 to get how many years it takes the tree to grow to 90 inches tall, you get 5.
Move all the terms containing Ф to the left side ...
0 = 0
H0P3 It H3LPS :)
Answer:
Step-by-step explanation:
Socks: 200000 + 40000 = 240000
Shirts: 50000 Must have stayed the same.
Pants: 900 + 3000 <u> 3900 </u> Pants
Total 293900
It is a step graph with slope of 2.
Answer: C
<em>Whenever you are unsure, choose a coordinate, plug it into the equation, and see if it makes a true statement.</em>
I choose (1/2, 1) → 1 = [2(1/2)] → 1 = [1] TRUE
I choose (1, 2) → 2 = [2(1)] → 2 = [2] TRUE
