Question about Office Equipment & Supplies

# -3 + -7

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-10 (negative ten)

Posted on May 28, 2014

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
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Good luck!

Posted on Jan 02, 2017

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## Related Questions:

### What is negative 7 over 13 subract 3 over 13

If you mean (-7/13) - (3/13) this is -10/13 (negative 10 over 13).
If you mean -[(7/13) - (3/13)] this is -4/13 (negative 4 over 13).

Dec 02, 2014 | ADVANTAGE Calculator

### How do I find this missing number? 13 10 17 15 21 _ 25 25

I found the differences between successive numbers and looked for a pattern.

The pattern I saw was -3 +7 -2 + 6...

So the pattern is a negative and then a plus, with both the negative and positive numbers goes down by 1.

If we extend the sequence, we get -3 + 7 -2 +6 -1 +5 -0
I get the sequence 13 - 3=10 +7 =17 -2 =15 +6 = 21 -1 = 20 +5 = 25 - 0 = 25

Good luck.

Paul

Oct 03, 2014 | Office Equipment & Supplies

### What to numbers can you multiply to get 280 and add to get-18?

When you say "to numbers" I assume you meant "two numbers."

There is no solution.

For the product of two numbers to be 280, either both numbers must be positive or both numbers must be negative. For the sum of two numbers to be -18, one or both numbers must be negative. Taken together, both numbers must be negative.

We can find two numbers that multiply to 280 and add to +18, then simply take the negative of both numbers.

The square root of 280 is about 16.7. The sum of any two numbers that multiply to 280 must be at least twice that, or at least 33.4. Since 33.4 is greater than 18, there is no solution.

If you want to do it the hard way, take any pair of negative numbers that multiply together to 280, add them together, and see how close you come to -18. For example, -1 and -280 add to -281. -2 and -140 add to -142. -4 and -70 add to -74. -5 and -56 add to -61. -7 and -40 add to -47. -8 and -35 add to -43. -10 and -28 add to -38. -14 and -20 add to -34, which is as close as you can come in the integers.

Jun 25, 2014 | Office Equipment & Supplies

### Add and subtract fractions with like demominators

Just add or subtract the numerators.

For example, to add 1/7 and 2/7, simply add the 1 and 2 to get 3. The answer is then 3/7.

Jan 13, 2014 | ixl.com

### What is 9 to the 2nd power plus -7 to the 3rd power plus -6 to the 2nd power x 5

I never know if these questions are serious, but I'll play along.

Remember the definition of a power: it's a number multiplied by itself that many times. For example, 4 to the 3rd power (4^3) is 4 X 4 X 4, or 64. So the problem you list can be written

9^2 + (-7^3) + (-6^2) + 5, or

9 X 9 + (-7 X -7 X -7) + (-6 X -6) + 5

Don't forget that negative X negative = positive when multiplying.

81 + (-343) + 36 + 5 = -221

Mar 16, 2011 | Computers & Internet

### I am having issues performing a simple function on my TI-30XS calculator. when I square a negative number - I get a negative number as opposed to a positive number?? example -3 - which I specify the...

You're not calculating the square of a negative number, you're calculating the negative of a square. You need to use parenthesis to indicate the square of a negative number.

You're calculating -(3^2), not (-3)^2.

To calculate the latter: ( (-) 3 ) x^2 =

Dec 05, 2010 | Texas Instruments TI-30XA Calculator

### TI-84 Plus Silver Edition. When dividing negative powers of ten by other negative powers of 10 the calculator it just adds the the negative powers together. How do i fix this? An example: 5*10^-10 /...

To enter an exponent, positive or negative, use the EE (Enter Exponent) key (the shifted function of the , key just above the 7 key). Do 5 2ND [EE] (-) 1 0 / 5 2ND [EE] (-) 1 0 ENTER and you'll see 1.

What I think you're doing (I can't be sure without seeing your keystrokes) is calculating
5*10^-10/5*10^-10 which is interpreted as (5*10^-10/5)*10^-10, which indeed is 10^-20.

Oct 16, 2010 | Texas Instruments TI-84 Plus Silver...

### How to use sentry ca 656 calculator for exponential forms in positive and negative ? when i am trying to do 2 to the power of 3 , it is giving me answer as 2000.for this i pushed 2 button than EXP than 3 ....

The EXP key is what's marked EE on most calculators and adds a decimal exponent. 2 EXP 3 means 2*10^3 which is 2000 as you've discovered.

You need to use the x^y key (just above DEL) instead.

Sep 22, 2010 | Sentry CA656 Calculator

### I can't seem to do simple subtraction with my Victor 1208-2. When I subtract say 5-4, I get a negative 9. Is there a setting or do I need to press something different to get simple subtraction to work?

When you want to complete a problem on an adding machine, such as "7 - 3," you would not key in "7," then the subtraction sign, then "3" and then an equal sign. If you do, then you will get an answer of "-4," and you know that is not the correct answer. Again, you have to think like an accountant when you are working with your adding machine. To figure this subtraction problem on an adding machine, you would need to key in "7," the addition sign, "3" and then the subtraction sign; you would get the answer of 4. You are actually working the problem as "7 + (-3)." This would be true on most modern day machines. In order to subtract, you have to add the negative number.

Sep 25, 2009 | Victor 1208-2 Calculator

### How many ways can you add up to 20

1. With "Natural Number", taking N={1,2,3,...}, you can add up to 20 in 19 ways.
ie. 1+19, 2+18, 3+17, ..., 18+2, 19+1.

2. Taking any integers (positive or negative), there are infinite no. of ways to add up to 20.
ie. -1+21, -2+22, ..., -20000+20020, etc.

Sep 13, 2009 | The Learning Company Achieve! Math &...

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