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natulia [17]
3 years ago
13

Herbert has sold 92, 28, 83 and 75 suits in the last four months, respectively. How many suits will he need to sell this month t

o maintain an average of at least 71 sales per month? ​
Mathematics
2 answers:
lutik1710 [3]3 years ago
5 0
4 month



Find the average of last 4 month
Find mean
Sum of Numbers divided by the count of numbers

92+ 28+ 28 +75 divided 4
278 divided by 4
69.5

If 4month = 69.5
x. =. 71

Cross multiply

69.5x =71 *4
69.5x.= 284
Divide both side by x
x= 284 / 69.5
x= 4.08 to whole number
x = 4 months
vovikov84 [41]3 years ago
3 0

Answer: 77 suits

Step-by-step explanation:

Let sales of this month = x

Sales for last 4 months = 92, 28, 83, 75

Average = Sum of Observation ÷ No of Observation

Now, we can form an equation

(92+28 +83+75+x) ÷ 5 =71

(92+28 +83+75+x) = 71 × 5

278 + x = 355

x = 355 - 278

x = 77

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