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djverab [1.8K]
3 years ago
9

What the answer to this problem I need the answer as soon as possible

Mathematics
1 answer:
DENIUS [597]3 years ago
6 0

I am not that sure but I believe it would be 12 and 1/2 points since that would have brought him back up to 100%. Because if it was any other it would make his score lower than 100% or higher then 100%

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I need help with this problem.<br>please help<br><br>Directions: Solve each system by substitution.​
artcher [175]

Answer:

(-1,-6)

Step-by-step explanation:

Plug 6x for y into the bottom equation:

2x+3(6x)= -20

2x+18x= -20

20= -20

x= -1

Substitute -1 for x in the equation for y:

y=6(-1)

y=-6

I hope I could help :)

3 0
3 years ago
Read 2 more answers
The length of a rectangular prism is 8
Lena [83]
Surface area is:

W=width
L=length
H=height

S=2*(L*W+L*H+W*H)

replacing the values

250=2*(8*W+8*1+W*1)

250=2*(8*W+8+W)

250=2*(9*W+8)

dived each member by 2

125=9W+8

9W=125-8

9W=117

\boxed{\boxed{W=13~unit~of~measure}}

The volume of a rectangular prism is

V=L*H*W

V=8*1*13

\boxed{\boxed{V=104~unit~of~volume}}
3 0
3 years ago
Write a real-world problem that could be represented by the following inequality. 70 + 5x &lt; 30 + 15x
kondaur [170]

Justin wants to paint his room. So he put together some quotations from two different painters. The first painter's total charge was based on the number of hours (denoted as x) worked was modeled as f( x ) = 70 + 5 x, while that of the second painter was g( x ) = 30 + 15 x. Justin knows that it will take more than 4 hours to decorate the house so he was certain to go with the first painter whose cost is low-priced when the number of hours is above 4 hours.

4 0
3 years ago
What is the value of x? Enter your answer in the box.
Pavlova-9 [17]
The answer to x would be 0

5 0
3 years ago
*math please help* Simplify.
Ghella [55]

Given : \frac{\frac{4x}{5 + x}}{\frac{6x}{x + 2}}

\implies \frac{4x}{5 + x}\times\frac{x + 2}{6x}

\implies \frac{2}{x + 5}\times\frac{x + 2}{3}

\implies \frac{2(x + 2)}{3(x + 5)}

\implies \frac{2x + 4}{3x + 15}

3 0
3 years ago
Read 2 more answers
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