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zzz [600]
2 years ago
12

Help this has to be don today or my grade on it will be a 60

Mathematics
2 answers:
mariarad [96]2 years ago
7 0

Answer:

\frac{5}{13}

Step-by-step explanation:

If you have the same denominator, you can just subtract the numerators normally and carry over the denominator.

Ivan2 years ago
6 0
6/13-1/13 =5-13 is the answer
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Solve the system of equations 7x+10y=36 y=2x+9
Damm [24]

Answer:

x = -2

y = 5

Step-by-step explanation:

Given two equations

1. 7x + 10y = 36

2. y = 2x + 9

Substitute 2x + 9 for y in equation 1.

We have

7x + 10y = 36

7x + 10(2x + 9) = 36

Distribute 10 into (2x + 9)

We have

7x + 10 x 2x + 10 x 9 = 36

7x + 20x + 90 = 36

27x + 90 = 36

Subtract 90 from both sides to eliminate 90 on the left side

27x + 90 - 90 = 36 - 90

27x = -54

Divide both sides by 27 to isolate x

27x/27 = -54/27

x = -2

Now substitute -2 into either equation to get y

Using equation 2, we have

y = 2x + 9

= 2 x -2 + 9

= -4 + 9

= 5

x = -2

y = 5

Check

7(-2) + 10(5) = 36

5 0
3 years ago
If a yeti cooler is reRegularly priced for $349 but is being discounted by 15% how much money will you say if you buy it on sale
Lilit [14]
349*.15=52.35
you save 52.35
6 0
3 years ago
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How does the volume of an oblique cylinder change if the radius is reduced to 2/9 of its original size and the height is quadrup
vesna_86 [32]
Volume of a cylinder = π r² h

Let us assume the following values:
radius = 9
height = 10

Volume = 3.14 * 9² * 10
            = 3.14 * 81 *10
Volume = 2,543.40

Changes:
radius is reduced to 2/9 of its original size = 9 x 2/9 = 2
height is quadrupled = 10 x 4 = 40

Volume = π r² h
             = 3.14 * 2² * 40
             = 3.14 * 4 * 40
Volume = 502.40

Original volume = 2543.40   V.S.  Volume after change = 502.40

The volume of an oblique cylinder decreased when its radius was decreased to 2/9 of its original size and its height is increased 4 times. 
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3 years ago
What is the equation of this line
aev [14]
I don’t see anything
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3 years ago
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Which terms are properties of mathematical proofs?
steposvetlana [31]
Did you ever find the answer?
8 0
3 years ago
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