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telo118 [61]
3 years ago
14

Y-3/4x=-3/3 what does y equal

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
7 0
1 Cancel
3
3.
−
3
4
x
=
−
1
−
​4x
​
​3
​​ =−1

2 Multiply both sides by
4
x
4x.
−
3
=
−
4
x
−3=−4x

3 Divide both sides by
−
4
−4.
−
3
−
4
=
x
​−4
​
​−3
​​ =x

4 Two negatives make a positive.
3
4
=
x
​4
​
​3
​​ =x

5 Switch sides.
x
=
3
4
x=
​4
​
​3
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PSYCHO15rus [73]
The square root of 625 is 25
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$75 before tax. Disc: 10% Tax: 7%, Tip: 20% what’s the total?
ololo11 [35]

Answer:

$102.75

Step-by-step explanation:

Given the following question:

We are given a cost of 75 dollars and are being asked to find the total cost after adding a tip, tax, and disc to the cost. To find this answer we will use the formula to calculate percentages making sure we use 75 as our base for each addition to our total cost.

<u>Formula to calculate percentages:</u>

\frac{p\times n}{100}

<u>First the disc:</u>

\frac{10\times 75}{100}
10\times75=750
750\div100=7.5
=7.5

<u>Next the tax:</u>

\frac{7\times75}{100}
7\times75=525
525\div100=5.25
=5.25

<u>Last but not least the tip:</u>

\frac{20\times75}{100}
20\times75=1500
1500\div100=15
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<u>Finally add:</u>

75+7.50+5.25+15=102.75
=102.75

The total cost after adding the disc, tax, and the tip will be "$102.75."

Hope this helps.

5 0
2 years ago
4x - 8 = 32<br> ?!!!! please help me plss
vagabundo [1.1K]

Answer:

The answer is X=10

Step-by-step explanation:

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4. A horizontal ellipse, centered at the origin has a major axis of 10 units and minor axis of 8 units. Write the
s2008m [1.1K]

Answer:

\frac{x^2}{25} +\frac{y^2}{16} =1

Step-by-step explanation:

For ellipses, the length of the major axis is represents as:

Major axis = 2a

where a is called the semi-major axis.

In this case since the major axis is equal to 10 units:

10=2a

solving for the semi-major axis a :

a=10/2\\a=5

and also the minor axis of an ellipse is represented as:

Minor axis = 2b

where b  is called the semi-minor axis.

Since the minor axis has a length of 8 units:

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solving for b:

b=8/2\\b=4

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\frac{x^2}{a^2} +\frac{y^2}{b^2} =1

and substituting the values for a and b:

\frac{x^2}{5^2} +\frac{y^2}{4^2} =1

and finall we simplify the expression to get the equation of the ellipse:

\frac{x^2}{25} +\frac{y^2}{16} =1

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Your answer would be 36.

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