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Usimov [2.4K]
3 years ago
9

the sum of 2 consecutive integers is less than 55.the pair of integers sum are 26 and 27. true or false?

Mathematics
1 answer:
son4ous [18]3 years ago
6 0
X + x + 1 < 55
2x + 1 < 55
Subtract 1 from both sides
2x < 54
Divide both sides by 2
x < 27
The integer less than 27 is 26.
26 + 27 < 55. True
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John and Andrew have £3.40 between them. John has £1.20 more than Andrew. John has £u and Andrew £v
Dahasolnce [82]
In the given question, there are several information's of immense importance and they can be used to find the necessary answers. It is already given that John and Andrew have 3.40 pound together. It is also given that John has 1.20 pound more than Andrew. It is also assumed that John has"u" pound and Andrew has "v" pounds.
Then we can write the two equations as
u + v = 3.40
u = v + 1.20
To find the values of u and v, we can replace the u in the first equation with the value of u in the second equation. Then
u + v = 3.40
(v + 1.20) + v = 3.40
2v + 1.20 = 3.40
2v = 3.40 - 1.20
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u = 3.40 - 1.1
u = 2.3
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