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liq [111]
3 years ago
9

4/5x=56 Please help, and explain how you got it

Mathematics
1 answer:
Scrat [10]3 years ago
5 0
To solve this, we must isolate x (have it by itself).

4/5x = 56

Multiply each side by 5x.

4/5x(5x) = 56(5x)

Divide each side by 280.

4/280 = 280x/280

Solve.

0.014 = x

0.014 can also be written as 1/70

:)

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Step-by-step explanation:

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2 years ago
Two of the angles in a triangle measure 57º and 25°. What must be the measure of the
ira [324]

The measure of the third angle in the triangle is 104 degrees

<h3>How to determine the measure of the third angles?</h3>

Let the three angles in the triangle be x, y and z.

Such that:

x = 51

y = 25

The sum of angles in a triangle is 180 degrees.

So, we have:

x + y  + z = 180

Substitute known values

51 + 25 + z = 180

Evaluate the sum

76 + z = 180

Subtract 76 from both sides

z = 104

Hence, the measure of the third angle is 104 degrees

Read more about triangles at:

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5 0
2 years ago
12 is 30% of what?
alexgriva [62]
12 = 30% of what
12 = 0.30x
12 / 0.30 = x
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5 0
3 years ago
2n + 4n = 42<br><br> Answer: the value of n is .....
Gennadij [26K]

Answer:

7

Step-by-step explanation:

2n + 4n = 6n, adding like terms

6n = 42

6n/6 = 42/6

n = 7

5 0
3 years ago
Read 2 more answers
What is the inverse of the given relation y = 7x² ?
beks73 [17]

Answer:

y = square root(x/7)

Step-by-step explanation:

switch x and y

x = 7y^2

solve for y

x/7 = y^2

square root(x/7) =y

y inverse is

y= square root(x/7)

7 0
3 years ago
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