2 years ago

C) P, Q, and R are prime numbers such that 3 * P + 7 * Q + 15 * R = 102. What is Q?

Mathematics

2 answers:

wolverine [178]2 years ago

6 0

Answer:

Q = 3‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎

Good Luck!!

lana66690 [7]2 years ago

5 0

Answer:

Q = 3

Step-by-step explanation:

3 * P + 7 * Q + 15 * R = 102

7Q = 102 - 3P - 15R

Q = (102 - 3P - 15R)/7

Try P = 2; R = 3

Q = 51/7 not an integer

Try P = 2; R = 5

Q = 21/7 = 3

Solution: P = 2; Q = 3; R = 5

Answer: Q = 3

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