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iVinArrow [24]
2 years ago
14

I need help ASAP................................

Mathematics
2 answers:
Anestetic [448]2 years ago
8 0

Answer:

x = -1

Step-by-step explanation:

-2(x - 5) = 12

-2x + 10 = 12 (this is the mistake, -2 times -5 = + 10)

-2x = 12 - 10

-2x = 2

x = 2/(-2)

x = -1

Sladkaya [172]2 years ago
7 0

Answer:

-2(x - 5) = 12

-2x + 10 = 12

-2x + 10 - 10 = 12 - 10

-2x = 2

-2x/-2 = 2/(-2)

x = -1

Thus, The answer is (-1) and the mistake is multiplication of sign i.e.,

[ (-) × (-) = (-) ] this is wrong ×

But

[ (-) × (-) = (+) ] this is right ✓

 

<u>-TheUnknownScientist</u><u> 72</u>

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a rectangular rug covers 1200 square inches on the floor. The length of the rug is 30 inches .What is the length in inches of th
Crank

Answer:

The length is 30 (which you aready said) and the width is 40

Step-by-step explanation:

1200/30=40

(another way)

120/30=4 (multiply each side by ten)

8 0
2 years ago
Functions assignment<br> Y= 2/3x+20 <br> When x=21 what is the function and solution
Nonamiya [84]

Answer:

y = 2/3 (21) + 20 (plug it in and multiply)

y = 14 +20 (add)

y = 34

(21,34)

Step-by-step explanation:

i hope this helps :)

3 0
3 years ago
Marco Has a peice of wood that measures 9x1/10 + 6x1/100 + 4 x 1/1000 meter. How can this measurement be written as a decimal
grin007 [14]
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7 0
3 years ago
Solve and graph the absolute value inequality: |2x + 4| &gt; 8​
neonofarm [45]

Answer:

C

Step-by-step explanation:

To get rid of the absolute value bars you have to get two different equations which would be 2x+4>-8 AND 2x+4>8. Pay attention to the signs, if there is greater than or equal to then it would have a line underneath the sign, which neither of the equations should have since you haven't moved a negative. solve normally and you'll get -6 blank circle and 2 blank circle.

4 0
3 years ago
2(x-3)-8&lt; -4 I need a explanation and the answer please.
tresset_1 [31]

Answer:

The solution to the inequality is:

x

The number line solution graph is also attached below.

Step-by-step explanation:

Given the inequality

2(x-3)-8< -4

Add 8 to both sides

2\left(x-3\right)-8+8

2\left(x-3\right)

Divide both sides by 2

\frac{2\left(x-3\right)}{2}

x-3

Add 3 to both sides

x-3+3

x

Thus, the solution to the inequality is:

x

The number line solution graph is also attached below.

6 0
2 years ago
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