QUESTION 7 1 points
Solve the problem.
A rectangular Persian carpet has a perimeter of 204 inches. The length of the carpet is 20 inches more than the width. Solve the equation 204 = 2w + 2(w +
20) to find the width, w of the carpet. Then find the length, w +20, of the carpet.
Length is 102 in., width is 82 in.
Length is 112 in, width is 92 in.
Length is 61 in width is 41 in
Length is 81 in, width is 61 in

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for