We have been given that the mean number of customers for those four days is 52. So total number of customers on 4 days would be 4 times 52 that is 208 customers.

We know that mean of a data set is equal to sum of all data points divided by number of data points.

Total number of customers on 5 days would be $208+x$ and total number of days is 5.

Since we need a mean of 54, so we can set mean of 5 days equal to 54 as:

$\frac{208+x}{5}=54$

Multiply both sides by 5:

$\frac{208+x}{5}*5=54*5$

$208+x=270$

$208-208+x=270-208$

$x=62$

Therefore, 62 customers must come in on the fifth day to make the five-day mean 54 and option 'c' is the correct choice.

4 0

3 years ago

Simplify the radical expression. 1. √45 2. √180x^2 3.√490y^5 w^6

lara [203]

#1) 3√5
#2) 6x√5
#3) 7w^3y^2√10y

8 0

3 years ago

Read 2 more answers

Given the triangle below, what is mA, rounded to the nearest tenth?

Katen [24]

Answer:

A. 24.2°

Step-by-step explanation:

I'm correct if I'm rwong

7 0

3 years ago