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goldfiish [28.3K]
4 years ago
7

-2/3y - 3/4=5 I am very confused

Mathematics
1 answer:
Oksana_A [137]4 years ago
5 0
-2/3y - 3/4 = 5

Add 3/4 to both sides.

-2/3y = 5 + 3/4

Simplify.

-2/3y = 5 3/4

Multiply both sides by -3/2.

-3/2 × -2/3y = 5 3/4 × -3/2

Simplify.

y = 23/4 × -3/2

Simplify.

y = -69/8 AND y = -8 5/9

~Hope I helped!~
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Which is a factor of 144 − 49x2? 12 - 7x2 72 – 7x2 12 – 7x 72 7x.
morpeh [17]

The factors of the given expression 144-49x^{2} will be  (7x+12)(7x-12)

<h3>What will be the factors of the given equation?</h3>

It is given that

144-49x^{2}

Now by simplifying it

(12)^{2} -(7x)^{2}

Now from the formula, we know

a^{2} -b^{2} = (a+b)(a-b)

So it will become

(12)^{2} -(7x)^{2}= (12-7x)(12+7x)

Thus the factors of the given expression 144-49x^{2} will be (7x+12)(7x-12)

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8 0
3 years ago
The volume of a box for earrings is 216 cubic centimeters. What is the length of one edge of the box plz help it's due tm
Murrr4er [49]
I’m pretty positive you divide 216 by 4, since that’s the amount of sides a box normally has. The answer would be 54 cubic centimeters. Please let me know if I’m correct, hopefully this helped.
4 0
3 years ago
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A student increased in height from 1.52m to 1.68m, calculate the percentage increase (show your working)
Sladkaya [172]

The percentage increase in the student's height is 10.52%.

Here we are given that a student's height increases from 1.52m to 1.68m.

Thus, the absolute increase in the student's height will be-

1.68 - 1.52 = 0.16 meters.

Now, we need to find the percentage increase in the student's height.

The formula for calculating percentage increase is given by-

Percentage increase = change in value/ initial value * 100

Here, the change in value is 0.16 meters and the initial value is 1.52 meters.

Thus, percentage increase in height = 0.16 / 1.52 *100

= 1600/ 152

= 400/ 38

= 200/ 19

= 10.52%

Thus, the increase in the student's height is 10.52%.

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6 0
2 years ago
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White raven [17]

Answer:

68

Step-by-step explanation:

Let The first number = X

& the Second one = X + 16

Sum of these two numbers = 120

X + X + 16 = 120

2X = 120 - 16

2X = 104

X = 52

So , the first number = 52

& Second one = 52 + 16 = 68

7 0
3 years ago
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BRAINLIEST IF CORRECT <br><br><br><br><br><br><br><br><br> EXPLAINNNNNNNNNNNNNNNNNNNNNNNNNNNNN
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Answer:

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620

837

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