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musickatia [10]
3 years ago
11

I WILL GIVE YOU BRAINLIEST FOR THIS ONE

Mathematics
1 answer:
lakkis [162]3 years ago
8 0
The first one doesn’t represent a function. This is because it uses the same x-value twice.
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Evaluate. Pay close attention to all brackets and signs.
mixer [17]
|4| - |-5|
all the absolute numbers are always positive.
when you will open the brackets positive will remain positive and negative will change to positive so we get
4 - 5
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5 0
3 years ago
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Does someone know the answer please help ASAP
kvv77 [185]
The correct answer is B
8 0
3 years ago
Factor each completely JEED THIS ASAP
Maurinko [17]
Answer: (m-1)(m-8)

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2 years ago
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The least common denominator of two fractions is 20. If you subtract the two denominations, you get 1. What are the denominators
LekaFEV [45]
Steps
find the Least Common Multiple of the denominators (which is called the Least Common Denominator).

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6 0
2 years ago
Jan spends part of her year as a member of a gym. She then finds a better deal at another gym, so she cancels her membership wit
valkas [14]

She spent 8 months in the 1st gym and 4 months in the 2nd gym

Step-by-step explanation:

Jan spends part of her year as a member of a gym.

  • She then finds a better deal at another gym so she cancels her membership with the first gym after x months
  • She spends the rest of the year, y months, with the second gym
  • The membership to the first gym costs $75 per month, while the membership for the second gym costs $45 per month
  • She ended up spending a total of $780 over the course of the year

We need to find how much time she spent at each gym

∵ She spent x months in the 1st gym

∵ She spent y months in the 2nd gym

∵ Her course is a year

- There are 12 months in a year

∴ x + y = 12 ⇒ (1)

∵ The membership to the first gym costs $75 per month

∵ The membership to the second gym costs $45 per month

∵ She ended up spending a total of $780 over the course

∴ 75x + 45y = 780 ⇒ (2)

Now we have a system of equations to solve it

Multiply equation (1) by -45 to eliminate y

∵ -45x - 45y = -540 ⇒ (3)

- Add equations (2) and (3)

∴ 30x = 240

- Divide both sides by 30

∴ x = 8

- Substitute the value of x in equation (1) to find y

∵ 8 + y = 12

- Subtract 8 from both sides

∴ y = 4

She spent 8 months in the 1st gym and 4 months in the 2nd gym

Learn more:

You can learn more about the system of equations in brainly.com/question/2115716

#LearnwithBrainly

4 0
3 years ago
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