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3 years ago

Lia earned $4.50 in 5 hours. How much does she make per hour?

Mathematics

2 answers:

inna [77]3 years ago

6 0

Answer 0.90

Step-by-step explanation: she makes 0.90 cents we know because if you multiply it by 5 you get the equation.

kirill115 [55]3 years ago

3 0

.9 or 9 cents and hour
You divide 4.50 by 5

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WILL GIVE BRAINLIEST

steposvetlana [31]

Answer:

Page 3 - the y-intercept would remain at 5 and the slope would be 3 times the upward slope.

Page 5 - the y-intercept would remain at -2 and the slope would be 1/4 instead of 5

Step-by-step explanation:

In point slope form the slope and y-intercept can be read directly from the equation.

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3 years ago

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3 years ago

22<br> Solve for x.<br> 3x - 5 = 10<br> x equals.....<br> help

kramer

Answer:

$x = 5$

Step-by-step explanation:

$3x - 5 = 10$

We want to isolate the x.

$3x - 5 = 10\\+5\;\;\;\;\;\;\;\;\; +5$

$3x = 15$

Now, we want the x not to have a coefficient. We want it just to be x =. We will do this via inverse operations. Since 3 x is 3 multiplied by x, we will divide each side by 3.

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~ $InLoveWithPugs$

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2 years ago

An NFL coach sometimes uses a defense that utilizes 3 defensive linemen, 4 linebackers, and 4 defensive backs. His roster (the p

Alexandra [31]

Answer:

68,600

Step-by-step explanation:

The order of the players is not important. For example, a defensive line of Shaq Lawson, Ed Oliver and Jerry Hughes is the same as a defensive line of Ed Oliver, Shaq Lawson and Jerry Hughes. So we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

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3 from a set of 8. So

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4 from a set of 7. So

$C_{7,4} = \frac{7!}{4!3!} = 35$

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Defensive backs:

4 from a set of 7. So

$C_{7,4} = \frac{7!}{4!3!} = 35$

35 combinations of defensive backs

How many different ways can the coach pick the 11 players to implement this particular defense?

56*35*35 = 68,600

68,600 different ways can the coach pick the 11 players to implement this particular defense

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3 years ago

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Answer:

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Step-by-step explanation:

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