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horsena [70]
3 years ago
11

Which pair of functions are inverse of eachother ?

Mathematics
1 answer:
Doss [256]3 years ago
6 0

Answer: a

Step-by-step explanation:

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The ratio of money in Terry's bank account to Faye's bank account was 3:7. Terry then put £220 in his account and Faye withdrew
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Answer:

£910

Step-by-step explanation:

let 3x and 7x be the initial amounts in their accounts, then after alterations

Terry has 3x + 220

Faye has 7x - 300

After these changes the amounts are equal, hence

7x - 300 = 3x + 220 ( subtract 3x from both sides )

4x - 300 = 220 ( add 300 to both sides )

4x = 520 ( divide both sides by 4 )

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Faye initially had 7 × £130 = £910 in her account


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Answer:

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Step-by-step explanation:

Factor 180 into prime numbers that multiply together to give 180

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Now rewrite them from smallest to largest

2*2*3*3*5

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3 years ago
How can we simplify the expression -(1-5n)-7n
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-(1-5n)-7n \\ \\ -1 + 5n - 7n \\ \\ -1 - 2n \\ \\ Answer: \fbox {-1 - 2n}
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