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fredd [130]
3 years ago
10

I need help please and thank you

Mathematics
1 answer:
sergeinik [125]3 years ago
8 0
Try googling it , sorry
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3 coins Priya spends $45 on gas, $10 on dinner, and $8 on a video game. How much money did Priya spend on variable expenses?​
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Answer:

3x=63

Step-by-step explanation:

3 coins means a coin is x and total expenditure is equal to 63

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0.9 of Karen's Science score is equal to 0.75 of her Math score and 0.8 of her Chemistry score. Given that Karen scored 96 marks
DochEvi [55]

You have to formulate equations for this problem.

Let S = Science score

      M = Math score

       C = Chemistry score

To illustrate the given:

0.9S = 0.75M

0.9S = 0.8C

You are given that Karen’s Math score is 96 marks. You have to substitute the Math score to the first equation.

0.9S = 0.75(96)

0.9S = 72

S = 80

Therefore, Karen’s Science score is 80. Now, you have to substitute the Science score to the second equation.

0.9(80) = 0.8C

0.8C = 72

C = 90

So, Karen’s Chemistry score is 90.

Therefore, the total score of the 3 subjects is 266 (96 + 80 + 90).

5 0
3 years ago
1. Find the Length of Line AD A(6, 2) D(-3, -2)
densk [106]

Answer:

5

Step-by-step explanation:

\sqrt{(2-(-2))^{2}  + (6-(-3))^2}

=\sqrt{4^{2}  + 3^{2} } \\

=\sqrt{25}

=5

8 0
2 years ago
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