3 years ago

PLZ HELP. I WILL GIVE BRAINLIEST. 30 POINTS

Mathematics

1 answer:

luda_lava [24]3 years ago

4 0

Part A answer is 25/

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4. The system of equations 3x – 6y = 20 and 2x – 4y = 3 is

expeople1 [14]

3x - 6y = 20
-6y = -3x + 20
y = 1/2x - 20/6.....slope = 1/2...y int = -20/6 = -10/3

2x - 4y = 3
-4y = -2x + 3
y = 1/2x - 3/4..slope = 1/2...y int = -3/4

same slope, different y int = parallel lines = no solution = inconsistent

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3 years ago

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Simplify the expression below. (2n/6n+4)(3n+2/3n-2)

andrezito [222]

Answer:

$\frac{n}{3n-2}$

Step-by-step explanation:

Given the expression:

$\frac{2n}{(6n+4)} \cdot \frac{3n+2}{3n-2}$

Using the distributive property: $a \cdot (b+c) =a\cdot b+a\cdot c$

$\frac{2n}{2(3n+2)} \cdot \frac{3n+2}{3n-2}$

Simplify:

$\frac{2n}{2} \cdot \frac{1}{3n-2}$

Simplify:

$\frac{n}{3n-2}$

Therefore, the simplified given expression is, $\frac{n}{3n-2}$

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3 years ago

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Write an addition sentence that helps you solve 15-9.

valentinak56 [21]

Answer:

9+6=15

9+1+5=15

Step-by-step explanation:

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2 years ago

If a person measures 42in in height what does the person measure in feet. I got the answer correct which is 3ft 6in but I need t

faust18 [17]

$42in=42\cdot0.0833333ft=3.5ft\\\\Answetr\ is\ 3.5\ feet.$

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3 years ago

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Question is attached answer asap. Will give brainliest

schepotkina [342]

1.) (-2,3)
2.) a=175/43 b= -70/43
3.)(7,3)

I believe i am right
I haven't one this in a long time
If i am can i get Brainliest

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3 years ago