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suter [353]
2 years ago
12

Towns P, Q and R are connected by roads PQ ,PR and QR. PR is 10km longer than PQ

Mathematics
1 answer:
almond37 [142]2 years ago
5 0

Answer:

PQ = 35 km

Step-by-step explanation:

Here, we want to get the length of PQ

Let PQ = x

PR is 10 km longer than PQ

PR = 10 + x

QR = 2 * PR

QR = 2(10 + x)

Adding all gives 170;

x + 10 + x + 2(10 + x) = 170

2x + 10 + 20 + 2x = 170

4x + 30 = 170

4x = 170-30

4x = 140

x = 140/4

x = 35 km

PQ = 35 km

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2 years ago
Factor completely: 2x4 − 32.
vazorg [7]

Answer:

Option b) is correct.

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Step-by-step explanation:

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2x^4-32=2(x^4-16)

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The above expression is of the form a^2-b^2=(a+b)(a-b)

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3 0
3 years ago
Read 2 more answers
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