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Q: What number if you divide by 9 and subtract by 7 the result is 1?

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Pick any number. Multiply by 6. Add 13. Subtract 7. Divide 3. Divide 2. Then subtract by the original number you chose. Your result will always be 1. Tell a friend to mentaly multiply their age by 2. Tell them to add 14 then divide 2. Ask your friend what number they currently have. Now, you mentally subtract 7 from the number they tell you, then you'll know your friend's age.

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Mulitiply it by 10, and you will have 13; divide by 0.1 and you will have 13 (again); or add 0.7 and you will have 2; or subtract 0.3 and you will have 1.

To get the reciprocal of any number, just divide 1 by that number. To check the result: the number times its reciprocal must equal 1.

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Divide the new number by the original number, subtract '1', and multiply by 100.

Pick any number. Multiply by 6. Add 13. Subtract 7. Divide 3. Divide 2. Then subtract by the original number you chose. Your result will always be 1. Tell a friend to mentaly multiply their age by 2. Tell them to add 14 then divide 2. Ask your friend what number they currently have. Now, you mentally subtract 7 from the number they tell you, then you'll know your friend's age.

The wording is ambiguous. If the questions means, "From what number can you subtract one-half to get a result of zero?" then the answer is one-half. (1/2) - (1/2) = 0 If the question means, "From what number can you subtract half of the number to get a result of zero?" then the answer is zero. 0 - (1/2)0 = 0

Subtracting a number by itself will leave you with 0, whereas dividing leaves 1. So dividing a number by itself will give the larger result.

Subtract a negative, eg 100 - (-1) = 101.

For the numbers 1 thru 9, the result is always 5. In fact, the result is 5 for any integer, and if you change the wording slightly to say 'add this to the original number plus 1' instead of 'add this to the next higher number' the result is 5 for ANY complex number. Here's why: Number picked: x Next higher number (for integers) or Number picked plus 1 (for any other sort of number): x + 1 Add them: x + x + 1 = 2x + 1 Add 9: 2x + 1 + 9 = 2x + 10 Divide by 2: x + 5 Subtract starting number: x + 5 - x = 5. Every tiime.

Divide the number by 100. The result is 1% of the number.

You do the following: 1) Divide the second number by the first. This will give you a factor, for example 1.20. 2) Subtract 1 from the result. This gives you the increase as a factor, for example, 0.20. 3) Multiply the result by 100, to convert to a percentage. In this example, 20%.

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no because if you subtract it as you have seemed to show here then you get an even number which makes it possible to divide by 2

F to C Deduct 32, then multiply by 5, then divide by 9 C to F Multiply by 9, then divide by 5, then add 32 Answer 2: Here's a much easier way to do it: C to F: Double it, subtract 1/10 of the result, and add 32. F to C: Subtract 32, add 1/9 of the result, then divide by 2.

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