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Contact [7]
3 years ago
14

2x = 15 + x Solve for X

Mathematics
1 answer:
Ganezh [65]3 years ago
3 0
-x on both sides to get
x=15
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Alexia spent 3 minutes working on each of her math problems and 4 minutes on each of her science problems. Her homework took her
vivado [14]

Answer:

The correct answer to this problem is the third statement which is "Alexia completed 20 math problems and 10 science problem". The following conditions are stated in the problem:

Alexia can answer 3 minutes on each math problem

Alexia can answer 4 minutes on each science problem

She worked more than 60 minutes

We have the inequality 3x + 4y > 60 where x represents the total number of math problem while y represents the total number of the science problem.

in our answer, we have x=20and y=10

3*20 + 4*10 > 60

60 + 40 > 60

100 > 60

brainliest please

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the solution to the following system of equations 2x+3y=3 and -3x-2y=8
SpyIntel [72]
<span>2x+3y=3
</span><span>-3x-2y=8

3y=3-2x
-2y = 8+3x

y = 1 - 2x/3
y = -4 - 3x/2

</span>1 - 2x/3 =  -4 - 3x/2

5 = - 3x/2 + 2x/3

5 = -9x/6 + 4x/6

5 = -5x/6

x = 5 * 6/-5

x = -6

No plug it in.

<span>2x+3y=3 ; x = -6

-12 + 3y = 3

3y=3+12

3y=15

y = 5

So </span>x = -6 and y = 5
3 0
4 years ago
What is the constant of proportionality of a graph if x equals 3 and y equals 90?
solmaris [256]
y = kx

'k' is the constant of proportionality, or otherwise known as constant of variation. 

y = 90
x = 3

90 = k(3)
90 = 3k
3k/3 = 90/3
k = 30

The constant of proportionality is 30. 
6 0
3 years ago
How do you write 39/10 as a percentage?
solmaris [256]
Answer:
39/10

39 ÷ 10= 3.9

<span>3.9 x 100 = 390%</span>
4 0
3 years ago
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9-{6+[5-3+(6-2)]+8(4-7)}​
sladkih [1.3K]

Answer:

−15

Step-by-step explanation:

9−6+5−3+6−2+8(4−7)

=3+5−3+6−2+8(4−7)

=3+2+6−2+8(4−7)

=3+2+4+8(4−7)

=3+6+8(4−7)

=9+8(4−7)

=9+(8)(−3)

=9+−24

=−15

6 0
3 years ago
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