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Black_prince [1.1K]

2 years ago

5

Jacob has several babysitting jobs.on one job ,he earned $10 an hour plus an extra $20 since there were 3 children.On another jo

b , he earned $15 an hour.He earned the same amount of money at both jobs .how many hours did he work and how much did he earned?

1 answer:

Umnica [9.8K]2 years ago

6 0

Answer:

4 hours, $60

Step-by-step explanation:

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sveta [45]

A.) For the Junior Varsity Team, mean would be the appropriate measure of center since the data is <span>symmetric or well-proportioned while we should use standard deviation for getting the measure of spread since it also measures the center and how far the values are from the mean.

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2 years ago

Abc~def what sequence of transformation will move ABC onto def

DENIUS [597]

Answer:

c

Step-by-step explanation:

8 0

2 years ago

A catering service offers 5 appetizers,4 main courses, and 8 desserts. A customer is to select 4 appetizers,2 main courses,and 3

Alisiya [41]

Answer:

468 ways

Step-by-step explanation:

Given: A catering service offers 5 appetizers, 4 main courses, and 8 desserts

To find: number of ways a customer is to select 4 appetizers, 2 main courses,and 3 desserts.

Solution:

A permutation is an arrangement of elements such that order of elements matters and repetition is not allowed.

Number of appetizers = 5

Number of main courses = 4

Number of desserts = 8

Number of ways of choosing k terms from n terms = $nPk=\frac{n!}{(n-k)!}$

Number of ways a customer is to select 4 appetizers, 2 main courses,and 3 desserts = $5P4+4P2+8P3$

$=\frac{5!}{(5-4)!}+\frac{4!}{(4-2)!}+\frac{81}{(8-3)!}\\=5!+\frac{4!}{2!}+\frac{8!}{5!}\\=5!+(4\times 3)+(8\times 7\times 6)\\=120+12+336\\=468$

So, this can be done in 468 ways.

7 0

2 years ago

Jack says ‘3 and 13 are both prime numbers, all whole numbers that end in 3 a prime numbers’. Write down an example that proves

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A seven is a prime number because you can't divide it. 33 is a composite number because three can go into 33.

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3 years ago

Brian made a tasty burger at the diameter of the burger was 5 cm what was the area of the burger

SCORPION-xisa [38]

Answer:

25

Step-by-step explanation:

7 0

2 years ago

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