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KATRIN_1 [288]
2 years ago
5

The number of boys in a club is 10 more than half the number of girls.

Mathematics
1 answer:
Sav [38]2 years ago
6 0

Answer:

40 girls

Step By Step Explanation:

assume boys = y girls = x

y = 1/2x + 10

y = 30

30 = 1/2x + 10

1/2x = 20  

x = 20 *2 = 40

girls is  40   boys is 30

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Two trains leave Cleveland at the same time. One train travels east and the other travels west. The speed of the westbound train
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Answer:

<u>The Eastbound train speed is 76.5 miles per hour and the Westbound train speed is 79.5 miles per hour.</u>

Step-by-step explanation:

1. Let's review all the information provided for solving this question:

Eastbound train speed = x

Westbound train speed = x + 3 miles per hour (The speed of the westbound train is 3mph greater than the speed of the eastbound train)

Duration of trip = 3 hours

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2. Let's find the speed of each train, using the following equation:

3x + 3(x + 3) = 468

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3. Proof that x = 76.5 is correct

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3 (76.5) + 3 (76.5 + 3) = 468

229.5 + 238.5 = 468

<u>468 = 468</u>

<u>The value of x = 76. 5 is correct. And now we know that the  Eastbound train has traveled 229.5 miles since the departure from Cleveland and the Westbound train 238.5 miles.</u>

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