The result of adding 15, 30, and 40 together is 85.
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None of them. If you're adding, use 15 and 2
your adding 15
(30 / .5) + 10 = 60 + 10 = 70
Any number you can get by adding 3's together. 6, 9, 12, 15, 18, 21, 24, 27, 30, etc.
No. SPF 30 lets in 1/30 of burning UV rays, while SPF 50 lets in 1/50. Adding the two together is pointless and would not result in high levels of skin protection.
The result of multiplying 27 by 1 is 27. Adding 3 to 27 gives 30. Dividing 30 by 8 results in 3.75.
8:30 plus 45 minutes equals 9:15. To add the two times together, you can convert 8:30 to 8:00 and add the 45 minutes to get 8:45. Then, adding another 30 minutes gives you a total of 9:15.
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30 multiplied by 15 is equal to 450. This can be calculated by multiplying the two numbers together using the standard multiplication algorithm, which involves multiplying the units digits first, then the tens digits, and adding the results. In this case, 0 multiplied by 5 is 0, and 3 multiplied by 5 is 15. Combining these results gives the final answer of 450.
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Add 15 to itself. Add another 15. Keep adding 15. Multiples are multiple additions.