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Marizza181 [45]
3 years ago
12

Solve for X please help

Mathematics
1 answer:
Marta_Voda [28]3 years ago
6 0

Answer:

x = 10

Step-by-step explanation:

First square both sides of the equation...

2\sqrt{x + 8} = 3\sqrt{x - 2} \\(2\sqrt{x + 8})^{2}  = (3\sqrt{x - 2})^{2}  \\ 4(x + 8) = 9(x - 2)\\4x + 32 = 9x - 18\\-5x = -50\\x = 10

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How many hours would someone earns 7.50 per hour have to work to earn $116.25
SCORPION-xisa [38]

Let h = amount of hours

7.5h=116.25

Since they earn $7.50 per hour, we can multiply that by an unknown amount of hours to get $116.25. Let's solve:

7.5h=116.25

Divide both sides by 7.5 to isolate the h, amount of hours.

\frac{7.5h}{7.5}=\frac{116.25}{7.5}

Simplify.

h=15.5

In conclusion, someone would have to work 15.5 hours to earn $116.25 if they earn $7.50 per hour.

5 0
3 years ago
Me ayudan con esa ecuacion por sustitucion con la comprobacion pliss
attashe74 [19]
<span>1/2x+3y/4=5 => (1/2)x + (3/4)y = 5

1/5x+3y/2=2  => (1/5)x + (3/2)y = 2

Eliminate the fractional coefficients:  Mult. the first equation by 4 and mult. the second equation by 10:


2x + 15y = 20     

</span><span>Multiply the 1st equation by -1:

-</span>2x - 3y = -20
2x + 15y = 20 
-------------------
       12y = 0, so y = 0.  Then the first equation becomes  2x + 3(0) = 20, or
                                     x=10.

Solution is (10,0).
8 0
3 years ago
an amusement park charge 35.50 for admission.on saturday,6,789 people visited the park.about how much money did the park earn fr
sp2606 [1]
6,789
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35.50
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32.39
3 0
3 years ago
Read 2 more answers
Write "x is less than or equal to zero" three different ways.
garik1379 [7]
The expression "x is less than or equal to zero" can be written in several forms; some examples, however, could be:

x ≤ 0
0 ≥ x
(You could substitute any number in place of 3 for the below)
3 - 3 ≥ x
3 0
3 years ago
Can someone help me find my error
AfilCa [17]

Answer:

try dividing 102 by 4 then after that make the length a lil bit bigger than the width but make sure it still equals 102

Step-by-step explanation:

mark me brainleist and ill give solution

6 0
3 years ago
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