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Ksenya-84 [330]
3 years ago
10

LINEAR EQUATIONS 2(x-1)=3(x+1)

Mathematics
1 answer:
Leokris [45]3 years ago
4 0
X = -5. Hope this helps!
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A coffee pot holds 2 3/4 quarts of coffee. How much is this in cups?
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The answer  is 11 us cups

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Hey could i get help i have an answser but im not 100% on it its on subsatution/elemination
dem82 [27]

Step-by-step explanation:

Substitute y = -2 in:

4x - (2 × -2) =8

4x - (-4) = 8

4x + 4 = 8

4x = 4

x = 1

Check:

4x - 2y = 8

4 -2y = 8

-2y = 4

y = -2

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With the air conditioner on, the electric bill was $303. With the air conditioner off, the bill was $194. What was the differenc
professor190 [17]

Answer:

<em>$</em><em>1</em><em>0</em><em>9</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>difference</em><em> </em><em>between</em><em> </em><em>both</em><em> </em><em>the</em><em> </em><em>bills</em>

Step-by-step explanation:

<em>Difference</em><em> </em><em>=</em><em>$</em><em>(</em><em>3</em><em>0</em><em>3</em><em>-</em><em>1</em><em>9</em><em>4</em><em>)</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>$</em><em>1</em><em>0</em><em>9</em>

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6 0
3 years ago
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Simplify: 108÷36 of 1/4 + 2/5 x 13/4 <br> A) 123/10 B) 133/10 C)41/20 D) 123/20
TiliK225 [7]

Answer:

B

Step-by-step explanation:

soln

=108 ÷36×1/4+2/5×13/4

=108÷9+2/5×13/4

=12+2/5×13/4

=12+13/10

=133/10✅

7 0
4 years ago
Factor x^2-2x-4 PLEASE ANSWER QUICKLY!!! I WILL GIVE POINTS!!! DBA IS TODAY!!!!
Thepotemich [5.8K]

To factor x²-2x-4, you are looking to answer three questions.

1) What pair of numbers multiplies to 4?

2) What pair of numbers multiplies to 1?

3) Do these pairs when multiplied together, add/subtract to the middle term?

To answer (1), our pairs are 2 and 2, 4 and 1. Since there's a negative with 4 at the end (from question one), the signs will be opposite.

To answer (2), only pair multiplies to 1 - 1 and 1. Let's try both pairs from 1.

(x-4)(x+1) The middle term here is -3x. Nope.

(x-1)(x+4). The middle term here is 3x. Nope.

(x-2)(x+2) The middle term is 0x (or no middle term). Nope.

So x²-2x-4 does not factor.

4 0
3 years ago
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