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Nesterboy [21]
3 years ago
8

If PQR is an equilateral triangle, PQ=18x+1, QR=24x-17, and PR=15x+10, find x and the measure of each side.

Mathematics
2 answers:
Vadim26 [7]3 years ago
8 0

Answer

QR= PQ= PR

18x+1= 24x-17

18x-24x= -17-1

-6x= -18

x= 3

QR= 24(3)-17= 55

PQ= 18(3)+1= 55

PR= 15(3)+10=55

Sedbober [7]3 years ago
6 0

Answer:

The value of x is 3. The length of PQ, QR and PR are 55.

Step-by-step explanation:

Given that the lengths in an equilateral triangle are all the same. We can assume that PQ = QR = PR. So we can choose any 2 lengths and compare it :

PQ = QR

18x + 1 = 24x - 17

1 + 17 = 24x - 18x

6x = 18

x = 18 \div 6

x = 3

Next, we have to substitute x = 3 into the expressions :

PQ = 18(3) + 1 = 55

QR = 24(3) - 17 = 55

PR = 15(3)  + 10 = 55

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