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Ahat [919]
3 years ago
7

Last year Billy weighed 75kg. This year he weighed 90kg. With what percentage did his weight increase?

Mathematics
1 answer:
Strike441 [17]3 years ago
8 0

Answer:

I think the solution is this below

|

|

\/

75/90 × 100%

(dividing 75 bad 90 by 5 )

15/18 × 100%

(dividing 15 and 18 by 3 )

5/6 × 100%

( dividing 6 and 100 by 2 )

5/3 × 50%

250/3%

83 1/3%

your answer ====> 250/3% or 83 1/3%

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<h2>Answer:   31 & 32</h2>

Step-by-step explanation:

So we first need to assign letters to represent the numbers.

Let 'a' be the larger number and 'b' the smaller.

Now we can use this to write equations that we can solve simultaneously to find both 'a' and 'b'.

according to the question:

a + 4b  = 156  [1]

a - b = 1  [2]   (this is because the integers are consecutive

We can rearrange [2] to make 'a' the subject:     a = b + 1 [3]

We can then substitute [3]  into [1] and solve for b

(b + 1) + 4b = 156

5b = 155

 b = 31

Now we can find 'a' using [3]

a = 31 + 1

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