2 years ago

Solve the system of linear equations by using the substitution method. Write your answer as a coordinate/point. (20 points)

Mathematics

1 answer:

Inessa [10]2 years ago

8 0

Answer:

(1,10)

Step-by-step explanation:

Substitute the value of y so you get -5x+15=-2x+12. Then solve you get x=1. Substitute x as 1 in the equation y=-2x+12 so you get y=10

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2 years ago

the area of a rectangular window is 6216 cm^2. if the length of the window is 84 cm, what is it's width?

Rus_ich [418]

Answer:

<h3>The answer is 74 cm</h3>

Step-by-step explanation:

The area of a rectangle = length × width

Since we are finding the width

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$width = \frac{area}{length} \\$

From the question

area = 6216 cm²

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$width = \frac{6216}{84} \\$

We have the final answer as

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steposvetlana [31]

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Step-by-step explanation:

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Step-by-step explanation:

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Caroline, Krutika and Natasha share some sweets in the ratio 1:2:4. Caroline gets 14 sweets.

lisov135 [29]

Answer:

98 sweets

Step-by-step explanation:

Caroline got 14 sweets, ratio for her was 1.

Krutika had twice the bigger ratio than her, which means you have to multipy Carolines' sweets by 2. -> 14*2= 28

And do the same thing for Natasha which gives us the result of 56. 14*4= 56

And finally, you add all of those together and get 14+28+56=98.

Hope I helped! :)

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