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tester [92]
3 years ago
9

What is the solution to the equation?

Mathematics
2 answers:
mojhsa [17]3 years ago
6 0
D. x=<span>−<span>4
Why?
</span></span>Let's solve your equation step-by-step.
<span><span>2<span>(<span>x−7</span>)</span></span>=<span><span>10x</span>+18
</span></span>Simplify both sides of the equation.
<span><span>2<span>(<span>x−7</span>)</span></span>=<span><span>10x</span>+18
</span></span><span>Simplify:
</span><span><span><span>2x</span>−14</span>=<span><span>10x</span>+18
</span></span>Subtract 10x from both sides.
<span><span><span><span>2x</span>−14</span>−<span>10x</span></span>=<span><span><span>10x</span>+18</span>−<span>10x
</span></span></span><span><span><span>−<span>8x</span></span>−14</span>=18
</span>Add 14 to both sides.
<span><span><span><span>−<span>8x</span></span>−14</span>+14</span>=<span>18+14
</span></span><span><span>−<span>8x</span></span>=32
</span>Divide both sides by -8.
<span><span><span>−<span>8x</span></span><span>−8</span></span>=<span>32<span>−8
</span></span></span><span>D. x=<span>−<span>4</span></span></span>
Fudgin [204]3 years ago
3 0
Hi there...

2(x -7) = 10x + 18
2x - 14 = 10x + 18
2x - 10x = 18 + 14
-8x = 32
Divide both sides by -8
-8x/-8 = 32/-8
x = -4


The correct option is D


Good luck :)

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20 points if you can answer this! :D​
andrew-mc [135]

Answer:

The answer is Ari, Beth, Cindy

Explanation

Ari

  • 2¾ miles is 2.75 miles
  • speed of 2½ miles per hour is 2.5 mi/h

DISTANCE = SPEED × TIME

t = d/s

= 2.75/2.5

= 1.1hr

= 66mins

Beth

  • 1¾ miles is 1.75 miles
  • speed of 1¼ miles per hour is 1.25 mi/h

t = d/s

= 1.75/1.25

=1.4hr

=84mins

Cindy

  • 1hr 21mins is 81mins

(Correct me if i am wrong)

5 0
3 years ago
Select the values that make the inequality - 4z &gt; - 28 true. Then write an
Olenka [21]

Answer:

vyxkgxgjxufxruzfjzfjzf

gxiggxifxifx

  1. xkzufxurzt
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7 0
2 years ago
9,10,11,and 12 please! Show work for all please!!!! Thanks! Please tell the answers as quick as possible
Vadim26 [7]
I'm not sure but I think I may have the answer to number 9
It says she uses 3 draws for shirts and wants to find out the percentage. Percentage is normally out of 100% so we do 100÷4 (we divide by 4 because there are 4 drawers)
100÷4=25. So now it says she uses three drawers for her shirts so we need to do 25x3=75 and all you do with that is put it in percent. The answer is 75%
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5 0
2 years ago
16
Bas_tet [7]

7.5cm

lets take point K represent lenght from M to perimeter of circle.

r is radius

KM= r-OM= r-4.5cm

now lets draw line from O to A (OA)

we get triangle.

hypotenuse is OA and it equals r(radius)

ab=12 cm. so another side of the triangle (AM) is 12/2=6cm. and the last side of the triangle is 4.5(OM)

use pythaghorean theorem

squares of sides added = square of hypotenuse

20.25+36=r^2(our hypotenuse is radius)

56.25=r^2

r=√56.25=7.5cm

5 0
3 years ago
Read 2 more answers
How do you do this???
Reika [66]

Answer:

No, he got extra (no need to be a Karen there)

Step-by-step explanation:

680 times 200=136000grams=136kilograms

136>129.2

3 0
2 years ago
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