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timurjin [86]
3 years ago
5

A car park has no parking spaces on the first floor. The second floor has double the amount of spaces on the first floor. The th

ird floor has 3 more spaces than the second. The total number of spaces is 428. Use an algebraic method to work out the number of parking spaces on the first floor.
Mathematics
1 answer:
Artist 52 [7]3 years ago
7 0

Answer:

85 parking spaces

Step-by-step explanation:

Given that :

Parking spaces on floors :

Let first floor = x

Second floor = 2x

Third floor = 2x + 3

Total parking spaces = 428

THEREFORE ;

x + 2x + 2x + 3 = 428

5x + 3 = 428

5x = 428 - 3

5x = 425

x = 425 / 5

x = 85

Hence, there are 85 parking spaces on the first floor

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