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lianna [129]
3 years ago
10

Solve the following system of equations by the substitution method. 2x = 10y - 8 3x + 4y + 5 = 0

Mathematics
1 answer:
Natali [406]3 years ago
5 0

Answer:

x = -\frac{41}{19}

y = \frac{7}{19}

Step-by-step explanation:

2x = 10y - 8

3x + 4y + 5 = 0

2x = 10y - 8

x = 5y - 4

3x + 4y + 5 = 0

3 ( 5y - 4 ) + 4y + 5 = 0

19y - 7 = 0

19y = 7

y = \frac{7}{19}

x = 5y - 4

x = 5 ( \frac{7}{19} ) - 4

x = -\frac{41}{19}

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Look at pic plz help
jasenka [17]

Answer:

Mochi

Step-by-step explanation:

Mochi

Each week theres a increase of 4 in Mochi's weight. So you will add 4 twice to get to the 5th week.

4th week : 17

5th week : 21

Kappa

In 4 weeks Kappa weighed 14, which is less that Mochi at the pace Kappa is going at.

on the 3rd week Kappa weighed 11

and 2nd week Kappa weighed 5

and 1st week Kappa weighed 3

Looking at the graph, we can give a rough estimate on the 5th week it's going to be 16 or 17 either way making Mochi heavier.

8 0
3 years ago
Order the following numbers from least to greatest.<br>5/4<br>1 8/25<br>1.3​
Lubov Fominskaja [6]

Answer:

18/25,  5/4, 1.3

Step-by-step explanation:

What you need to do is to divide each fraction so that you can change to a number.

18÷25=0.72

5÷4=1.25

7 0
3 years ago
The bar graph below shows the student's favorite ice cream flavors. a) Use the graph's lines as a ruler to draw the intervals on
PtichkaEL [24]
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The dotted line between 20 and 30 (butter pecan) will be nothing more than anything including 5. In this case, it is 25 counting up to 30.
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3 0
3 years ago
A cone has a volume 12 pie cubic inches it’s height 4 inches what is the radius?
insens350 [35]

Answer:

<h2>r = 3 in</h2>

Step-by-step explanation:

The formula of a volume of a cone:

V=\dfrac{1}{3}\pi r^2H

r - radius

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We have V = 12π in³ and H = 4 in. Substitute:

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3 0
3 years ago
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NISA [10]
If im not mistake i think 1/2 is 0.5 but im not sure about the other one 

3 0
3 years ago
Read 2 more answers
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