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bazaltina [42]
2 years ago
14

Jack works eight hours a day he is paid €6.50 per hour. He saves half of his pay how many days will he have to work to save €780

?
Mathematics
1 answer:
serious [3.7K]2 years ago
7 0

Answer:

\frac{8x \times 6.5}{2} = 780

8x \times 6.5 = 780 \times 2 \\ 8x \times 6.5 = 1560 \\ 52x = 1560 \\ x = 15

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P and q are different two-digit prime numbers with the same digits, but in reversed order. what is the value of the larger of p
serious [3.7K]
The set of two-digit primes is {11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97}

Of that list, the following primes are mirror images of each other
13 and 31
17 and 71
37 and 73
79 and 97
Note: we ignore 11 since 11 flips to 11 which is not distinct from its original

If you're looking for the largest prime of this form, then its 97
If you're looking for the largest gap, then subtract each pair
31-13 = 18
71-17 = 54
73-37 = 36
97-79 = 18
We see that 71 and 17 have the largest gap
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