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ella [17]
3 years ago
10

Use substitution to solve the system of equations.

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
6 0
Here all you have to do is substitute, so the answer your looking for is d
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The length of segment HJ if H lies at (-1,7) and J lies at (8,-5)​
sukhopar [10]

Answer:

<h3>HJ = 15</h3>

Step-by-step explanation:

To get the length of segment HJ if H lies at (-1,7) and J lies at (8,-5)​, we will use the formula for calculating the distance between two points as shown;

D = √(x₂-x₁)²+(y₂-y₁)²

From the coordinates x₁ = -1, y₁ = 7, x₂ = 8, y₂ = -5

HJ = √(8-(-1))²+(-5-7)²

HJ = √(8+1)²+(-12)²

HJ = √81+144

HJ = √225

HJ = 15

<em>Hence the length of segment HJ is 15 units</em>

5 0
3 years ago
What is 5X - 5 distributive property
TiliK225 [7]

Answer: 5(x-1)

Step-by-step explanation:

5*x = 5x

5*-1 = -5

therefore the answer is 5(x-1)

4 0
3 years ago
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The ratio of pencil to rulers is 6:10. the are 21 pencils. how many rulers are there
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There would be 35 rulers.

In order to solve this, use cross multiplication.

6/10 = 21/x -----> cross multiply

10*21 = 6*x

210 = 6x

35 = x

8 0
3 years ago
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