Answer:
4y + 2y = 12
solved; y = 2
Step-by-step explanation:
put the 2 y values together to get 6y. Then divide both sides by 6 to icolate y to get 2.
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<span>So, the formula for this problem is 10/x =40/64. You can solve for x by cross multiplication so, you end up with 40x=640 with x=16. So Justin should charge his friend $16.00.</span>
If the length of the wall is 18 feet, then the wall on the plan is 3.6 inches long
<u>Solution:</u>
According to Tom, 2.6 inches equals to 13 feet
Length of the wall = 18 feet
If 2.6 inches is equal to 13 feet, then 1 feet is equal to:

So, 1 feet = 0.2 inches …….(1)
Now, we have to determine the length of the wall on the plan which is 18 feet long
Using Equation (1), 18 feet = 18 × 0.2 inches = 3.6 inches
Hence , the wall on the plan is 3.6 inches long