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ycow [4]
2 years ago
14

Confused on this one

Mathematics
2 answers:
jeka942 years ago
8 0

Answer:

2nd is the correct answer for your question

krok68 [10]2 years ago
4 0
0

Substitute 1/2 for x.

First term is 6 (1/2)^4
1/2 x 1/2 x 1/2 x 1/2 = 1/16
6 x 1/16 = 6/16
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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
What is the total number of milliliter of juice 20 people can drink
grandymaker [24]
377m total people can drink
3 0
3 years ago
In the figure below, what are k and m ​
DerKrebs [107]

The answer to your question is k and m are both 9

6 0
3 years ago
HURRY. Write a ratio for the following word phrase. Write the fraction in lowest terms.
mestny [16]

Answer:

84:2 42/1

Step-by-step explanation:

i think

hope ths helps

8 0
3 years ago
I am having a test tomorrow about this can someone help me explain it?​
Amiraneli [1.4K]

Answer:

the answer would be 217 [degrees]

Step-by-step explanation:

Since m<1 and m<2 are next to each other, they are adjacent. Adjacent angles  must share a common side which is m<W. This means they have to be added.   m<1+m<2= m<XYZ

145+72=217

7 0
3 years ago
Read 2 more answers
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