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Elena L [17]
3 years ago
13

Solve for y:5(x + y) = 20 + 3x​

Mathematics
2 answers:
son4ous [18]3 years ago
5 0
5(x+y)= 20+ 3x
5x+5y=20+3x
5x+5y-3x=20+3x-3x
2x+5y=20
2x+5y-2x=20-2x
5y=-2x+20
5y/5=-2x/5+20/5
y=-2/5x+4

ANSWER: y=-2/5x+4
creativ13 [48]3 years ago
3 0

Answer:

???

Step-by-step explanation:

5x+5y=20+3x (distribution)

-3x -3x (alike terms)

2x+5y=20

/2x /2x

5y=20/2x

/5 /5

y=20 (idk I put it in my calculator)

if that looks nothing like the correct answer just put 0 for x and solve from there

5(0)= 0, so

5y=20 (because the three also has an x which we are putting as zero)

divide 20 by 5 and get 4

I'm really sorry if this is wrong it's been a long day

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46 is the sum of 9 and Hector's savings. Use the variable h to represent Hector's savings
AURORKA [14]
H+9=46
it would be a decimal
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3 years ago
Find the midpoint of the segment connecting the points (2,-7) and (-7,9).
True [87]

Answer:

(-2.5,1)

Step-by-step explanation:

hope that helps

4 0
3 years ago
The equation x 2y = 16 is in standard form. what is the slope of the line? â€""2 â€""1 â€""0.5 0.5
Savatey [412]

By rewriting the given line, we can see that the slope is equal to -1/2 or -0.5

<h3>How to get the slope of the given line?</h3>

Remember that a line is:

y = a*x + b

Where a is the slope and b is the y-intercept of the line, which is the point where the line intersects the y-axis.

Then, we can rewrite our equation:

x + 2y = 16

to:

2y = 16 - x

y = (16 - x)/2

y = (-1/2)*x + 8

Comparing with the general line equation, we can see that the slope is -1/2.

If you want to learn more about linaer equations:

brainly.com/question/1884491

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3 0
2 years ago
HELP PLEASE! FAST! WILL GIVE 5 STARS AND THANKS!<br> 5/6 x 18
Yuri [45]

Answer:

15

Step-by-step explanation:

5/6 * 18

Rearranging

5 * 18/6

5 *3

15

3 0
3 years ago
Two groups of staff at a store are making flowers to decorate the entrance. If Group A were to do it alone, it would take them 1
Tcecarenko [31]

Answer:

\dfrac{6750}{7}

Step-by-step explanation:

Let x be the number of flowers. If Group A were to make x flowers alone, it would take them 10 hours to complete the task, then they make \dfrac{x}{10} flowers in an hour.  If Group B were to make x flowers alone, it would take them 15 hours to complete the task, then they make \dfrac{x}{15} flowers in an hour.

The groups decided to work together. They can make \dfrac{x}{10}+\dfrac{x}{15}=\dfrac{x}{6} together in an hour and it takes them \dfrac{x}{\frac{x}{6}}=6 hours. Group B took a break for 1 hour and 40 minutes (1\dfrac{2}{3} hour), then Group B works

6-1\dfrac{2}{3}=4\dfrac{1}{3} hours.

Thus,

\dfrac{x}{10}\cdot 6-\dfrac{x}{15}\cdot 4\dfrac{1}{3}=300,\\ \\\dfrac{3x}{5}-\dfrac{13x}{45}=300,\\ \\14x=300\cdot 45=13500,\\ \\x=\dfrac{13500}{14}=\dfrac{6750}{7}.

6 0
3 years ago
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