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3 years ago

A machinist worked 40 regular hours and 10 overtime hours during one week and earned

Mathematics

1 answer:

zlopas [31]3 years ago

7 0

Answer:

$18 an hour

Step-by-step explanation:

The machinist made an extra ($660-$480 =) $180 working overtime. Since he worked 10 hours of overtime, it comes out to ($180/10 =) $18 an hour.

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The cafe where you work just ran out of coffee, and you are at the store to buy 112 pounds of coffee. You have put a can with 34

ycow [4]

Answer:

Step-by-step explanation:

The total you are buying is 112 pounds. The can you have picked up is 34 pounds; this leaves

112-34 = 78 pounds remaining.

7 0

3 years ago

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Can you guys help? Another question about writing out an equation of the line shown in the graph

Snowcat [4.5K]

Answer:

Step-by-step explanation:

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3 years ago

Miriam is picking out some movies to rent, and she is primarily interested in comedies and foreign films. She has narrowed down

Keith_Richards [23]

Answer:

There are 795 combinations.

Step-by-step explanation:

The number of ways or combinations in which we can select k element from a group of n elements is given by:

$nCk=\frac{n!}{k!(n-k)!}$

So, if Miriam want to choose 3 movies with at least two comedies, she have two options: Choose 2 comedies and 1 foreign film or choose 3 comedies.

Then, the number of combinations for every case are:

1. Choose 2 Comedies from the 10 and choose 1 foreign film from 15. This is calculated as:

$10C2*15C1=\frac{10!}{2!(10-8)!}*\frac{15}{1!(15-14)!}$

$10C2*15C1=675$

2. Choose 3 Comedies from the 10. This is calculated as:

$10C3=\frac{10!}{3!(10-3)!}=120$

Therefore, there are 795 combinations and it is calculated as:

675 + 120 = 795

8 0

3 years ago

Given the system of equations, what is the value of the system determinant? x + y = 8 x - y = 10 0 -1 -2

kkurt [141]

Each X and Y in the equations don't have a number in front of them so they are all considered 1.

D = 1*(-1) - 1*(-1) = -1 -1 = -2

The answer is -2

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3 years ago

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Please help, brainliest, thanks, five star

AnnZ [28]

Answer:

Step-by-step explanation:

2 x 3x = 6x and 2 x 4 = 8

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3 years ago