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Norma-Jean [14]
3 years ago
9

10. Mac the plumber charges $80 for a house call plus

Mathematics
1 answer:
sukhopar [10]3 years ago
5 0

Answer:

4 hours

Step-by-step explanation:

55h = 80 + 35h

55h - 35h = 80 + 35h - 35h

20h = 80

20h/20 = 80/20

h = 4

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a survey of lobster fishermen found that they catch an average of 32 pounds of lobster per day with a standard deviation of 4 po
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<h3>What is z score?</h3>

The z score is used to determine by how many standard deviations the raw score is above or belaw the mean. It is given by:

z = (raw score  - mean)/ (standard deviation ÷ √sample)

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Find out more on z score at: brainly.com/question/25638875

4 0
2 years ago
A jar pinto beans and black beans in a ratio of 1: 1, and 300 of the beans are pinto beans. How many beans in total are there in
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