Add and subtract positive and negative decimals

1 answer:

5 0

You would add and subtract them like a normal whole number, make sure to link up the decimals. You can use 0's as place holders if you need to. If you have two negatives your answer would be negative. When you subtract / add decimals just add them together. A positive plus a positive would be positive. If you have a positive plus a negative, subtract them and go with the sign of the greater number.

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How do you solve this equation 7(3)+(-9)×(-4)=

Softa [21]

Hello!

To solve this equation, we will need to use PEMDAS (parentheses, then exponents, then multiplication/division, then addition/subtraction).

7(3) + (-9) x (-4) =

21 + (-9) x (-4) =

21 + 36 =

I hope this helps you! Have a lovely day!

- Mal

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4 years ago

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shusha [124]

Answer:

75.36

Step-by-step explanation:

c=2r

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3 years ago

Read 2 more answers

Please answer quick and right

sleet_krkn [62]

Answer:

Step-by-step explanation:

Since it states it needs to be cut into pieces, it's division, so since it's division we do KCF - keep change flip

We keep the first term, then we change the sign to a multiplication sign and flip the numerator and the denominator for the second term, so your equation would be :

6/8 × 4/1

6 times 4 would be 24, then we put 24 over 8, 24/8, - then you just divide 24 by 8 which would be 3. I hope this helps.

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4 years ago

Please show work<br> 26 lbs of onion cost $127.40. How much would 18 lbs cost\

Irina18 [472]

127.40/26 = $4.90 per pound
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3 years ago

(x^b-c)^1÷bc×(x^c-a)^1÷ac×(x^a-b)^1÷ab

stiv31 [10]

Hope this helps (sorry if u cant see that)