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Stolb23 [73]
3 years ago
5

What is the value for x in the proportion x+8/5x-2=3/8

Mathematics
1 answer:
Verdich [7]3 years ago
8 0
\dfrac{x+8}{5x-2}  =  \dfrac{3}{8}

Cross-multiply:
8(x + 8) = 3(5x - 2)

Distribute 8 and 3:
8x + 64= 15x - 6

Isolate x to the left:
15x - 8x = 64 + 6

Combine like terms:
7x = 70

Divide by 7:
x = 10
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Need help on number 25 and 26 can you please explain how you got the answer thanks!:)
Westkost [7]
In both problems, the sum of side lengths is the perimeter. Opposite sides of a parallelogram (or rectangle) are equal in length, so you can find the perimeter by doubling the sum of adjacent sides.

25. 2(x +(x +15)) = (x +45) +(x +40) +(x +25)
.. 4x +30 = 3x +110 . . . . . . . . . . . . . . . . . . . . . . simplify
.. x = 80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . subtract 3x+30
.. 4x +30 = 4*80 +30 = 240
The perimeter of each is 240 units.

26. 2(x +(x +2)) = (x) +(x +6) +(x +4)
.. 4x +4 = 3x +10 . . . . . . . . . . . . . . . . . . . . . . simplify
.. x = 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . subtract 3x+4
.. 4x +4 = 4*6 +4 = 28
The perimeter of each is 28 units.
6 0
3 years ago
3. CRAFTS Numa loves beads and wants to
valentina_108 [34]

The amount of beads according to the cube number is 238328.

According to the statement

we have to find that the value of the cube of the given value.

So, For this purpose, we know that the

A cube number is the result when a number has been multiplied by itself three times.

From the given information the number is:

(62)³

Cube of (62)³ = 62*62*62

Now, multiply these numbers

Cube of (62)³ = 3844*62

Then the value become

Cube of (62)³ = 238328

This is the value of the cube of the given numbers.

So, The amount of beads according to the cube number is 238328.

Learn more about cube number here

brainly.com/question/474968

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2 years ago
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Step-by-step explanation:

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8 0
3 years ago
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wariber [46]
The <span>initial value is 65 since that is the y intersept.</span>
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4 years ago
On a piece of paper graph......
Artyom0805 [142]
Answer:

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