2006-10-31 16:16:57 · 20 answers · asked by RydrCup99 1 in Science & Mathematics ➔ Mathematics
22 houses x 3 months = 66 houses
29 + 15 = 44
66 - 44 = 22
2006-10-31 16:19:18 · answer #1 · answered by cat person 3 · 1⤊ 1⤋
What good is an answer if you don't understand how you got there?
The average is the total number of houses divided by the total number of months.
22 houses / 1 month = 66 houses / 3 months
(you multiply the numerator and denominator by 3)
You already sold 44 houses (29 + 15) in 2 months. So you need 22 more to reach the 66 you need. The answer is 22.
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In algebraic terms:
(29 + 15 + x) houses / 3 mths = 22 houses / mth,
where x = the number of houses sold in the 3rd month
Cross multiplying yields:
(29 + 15 + x) houses = 66 houses
x = 66 - 29 - 15 <-- subtracting 29 and 15 from both sides of the equation
x = 22
Keep studying and don't be afraid to ask questions. Once you "get it" you'll really start to enjoy math and problem solving!
2006-11-01 00:29:22 · answer #2 · answered by Rob VH 3 · 0⤊ 0⤋
To average 22 houses per month in 3 months, you have to sell a total of 66 houses in 3 months:
66 = 29 + 15 + x
66 = 44 + x
66 - 44 = x
x = 22
You have to sell 22 houses in the 3rd month.
2006-11-01 00:20:58 · answer #3 · answered by smarties 6 · 1⤊ 0⤋
22
2006-11-01 00:20:26 · answer #4 · answered by shelly 2 · 1⤊ 0⤋
22
2006-11-01 00:19:33 · answer #5 · answered by Aakash Rao 1 · 1⤊ 0⤋
22
2006-11-01 00:18:43 · answer #6 · answered by kay S 4 · 1⤊ 0⤋
22
2006-11-01 00:18:37 · answer #7 · answered by cork 7 · 1⤊ 0⤋
22
2006-11-01 00:18:20 · answer #8 · answered by ladynamedjane 5 · 1⤊ 0⤋
you need to sell a total of 66 houses in those 3 months to average 22. so 66 - (29 + 15) = 22
2006-11-01 00:20:51 · answer #9 · answered by parasiteace 3 · 1⤊ 0⤋
29 + 15 + 22 = 66 houses/3 months = avg of 22 per month answer = 22
2006-11-01 00:20:19 · answer #10 · answered by george_james68 1 · 1⤊ 0⤋