2(w-7)+10w=34 i dont understand how the teacher got 2 1/2

Step-by-step explanation:

1) Use the Distributive property to distribute -2 to w and -7:

-2w+14+10w=34

2) Combine alike terms (-2w and 10w):

14+8w=34

3) Subtract 14 from both sides:

8w=20

4) Divide by 8 on both sides to get x by itself:

w=20/8

5) Simplify the fraction 20/8:

5/2 or 2 1/2

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.

51840000 cm 2

step-by-step explanation: