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nalin [4]
2 years ago
13

Jack works as a waiter and is keeping track of the tips he earns daily. about how much does jack have to earn in tips on sunday

if he wants to average $19 a day? a graph titled tips by day has day on the x-axis, and tips (dollars) on the y-axis. monday, 12; tuesday, 14; wednesday, 18; thursday, 16; friday, 26; saturday, 22. a. $25 b. $16 c. $35 d. $15 please select the best answer from the choices provided a b c d
Mathematics
1 answer:
OLga [1]2 years ago
5 0

A mean is an arithmetic average of a set of observations. The amount that Jack has to earn in tips on Sunday if he wants to average $19 a day is $25.

<h3>What is Mean?</h3>

A mean is an arithmetic average of a set of observations. it is given by the formula,

\rm Mean=\dfrac{\text{Sum of all obervation}}{\text{Number of observation}}

As it is given that Jack makes $12 on Monday, $14 on Tuesday, $18 on Wednesday, $16 on Thursday, $26 on Friday and $22 on Saturday. And we need to know how much he should earn on Sunday, so the average is $19. Therefore, we can write,

\rm Mean=\dfrac{\text{Sum of all obervation}}{\text{Number of observation}}

19 = \dfrac{12+14+18+16+26+22+x}{7}\\\\133 = 108 + x\\\\133-108=x\\\\x = 25

Hence, the amount that Jack has to earn in tips on Sunday if he wants to average $19 a day is $25.

Learn more about Mean:

brainly.com/question/16967035

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