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3 years ago

In a square PQRS, PQ = 2x +3 cm and QR = 3x – 5 cm, then the value of x is

Mathematics

1 answer:

Eva8 [605]3 years ago

6 0

Answer:

x = 8 cm

Step-by-step explanation:

Given that,

In a square PQRS, PQ = 2x +3 cm and QR = 3x – 5 cm.

We need to find the value of x.

In a square, all the sides are equal. So,

PQ = QR

2x +3 = 3x – 5

3+5 = 3x - 2x

x = 8

So, the value of x is equal to 8 cm.

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Step-by-step explanation:

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4 years ago

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Step-by-step explanation:

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Read 2 more answers

A man is five times as old as his son. Four years ago, he was nine times as old. Find their present ages.

Aleonysh [2.5K]

Let us assume the age of the son now = x
Then
The age of the man now = 5x
Now we have to calculate the age of the son and father 9 years ago
Age of the son 4 years ago = x - 4
Age of the man 4 years ago = 5x - 4
Then
5x - 4 = 9(x - 4)
5x - 4 = 9x - 36
5x - 9x = -36 + 4
- 4x = - 32
MUltiplying both sides of the equation by -1 we get
4x = 32
x = 32/4
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So the present age of the son is 8 years
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= 5 * 8
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