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Rufina [12.5K]
3 years ago
14

4x-7y=3x-7y=-15solve with process of elimination ​

Mathematics
1 answer:
Virty [35]3 years ago
8 0

Answer:

6

Step-by-step explanation:

1) 4x-7y=3

x-7y=-15

2)4x-7y=3

-(x-7y=-15)

3) 3x=18

6) Divide by 3

7) x=6

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Morgarella [4.7K]

Answer:

1)b=-4

2)k=4

3)can u explain what #3 and 4 say

4)?

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Step-by-step explanation:

5 0
4 years ago
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8 0
3 years ago
Simplify the square root of 27x^12/300x^8
Darina [25.2K]
The first thing we are going to do is rewrite the expression correctly.
 We have:
 root (27x ^ 12 / 300x ^ 8)
 Rewriting:
 root ((27/300) * (x ^ 12 / x ^ 8))
 root ((9/100) * (x ^ (12-8)))
 root ((9/100) * (x ^ (4)))
 root ((9/100) * (x ^ (4)))
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 (3/10) * (x ^ 2)
6 0
4 years ago
Read 2 more answers
Delta Math! Please help.
vodka [1.7K]

Answer:

x = 1.5\sqrt{3}

Step-by-step explanation:

using the sine ratio in the right triangle and the exact value

sin60° = \frac{\sqrt{3} }{2} , then

sin60° = \frac{opposite}{hypotenuse} = \frac{x}{3} = \frac{\sqrt{3} }{2} ( cross- multiply )

2x = 3\sqrt{3} ( divide both sides by 2 )

x = 1.5\sqrt{3}

6 0
2 years ago
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I need help asap with this
tatyana61 [14]

Answer:

51°

Step-by-step explanation:

Given

<QPR = 39°

<PQR = 90° ( inscribed angle in semi circle)

Now

<QPR + <PQR + <PRQ = 180° { being sum of angles of triangle)

39° + 90° + <PRQ = 180°

<PRQ = 180° - 39° - 90°

<PRQ = 51°

Hope it will help :)

5 0
3 years ago
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