3 years ago

When adding 3 and -9, how do you know that the sum is negative?

Mathematics

1 answer:

irga5000 [103]3 years ago

7 0

You know the sum is negative because the negative integer is larger than the positive integer.

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2x squared plus 3x minus 2 plus 7

alex41 [277]

Answer:

2x^2 + 3x + - 2 + 7

4x + 3x - 2 + 7

7x + 5

Step-by-step explanation:

2x^2 + 3x + - 2 + 7

4x + 3x - 2 + 7

7x + 5

5 0

4 years ago

Read 2 more answers

Karen finished watching a movie at 1:10 pm. The movie lasted 1 hour 38 minutes what time did Karen started watching the movie

Viktor [21]

well, the movie lasted 1:38 so.... and she finished it at 1:10pm.

1:10pm minus 1 hour? 12:10pm.

12:10 pm minus 10 and minus 28 minutes? 12:10 - 00:10 = 12:00pm, 12:00 - 00:28 minutes = 11:32am.

5 0

3 years ago

to celebrate arbor day mrs. rochon's class will plant an oak tree in the school courtyard. The tree will be supported by three r

alexandr402 [8]

Using the pythagras theorem :

Length of rope = sqrt (6^2 - 5^2) sqrt 11 = 3.32 feet to nearest hundredth.

6 0

3 years ago

Divide 2/3 by 8/15. Simplify your answer

masha68 [24]

Answer:

5/4

Step-by-step explanation:

(2/3)/(8/15)

= (2/3)(15/8)

= (2*15)/(3*8)

= 30/24

= 5/4

7 0

1 year ago

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McKenzie sells textbooks. She receives 7% on her first $1,000 in sales and 15% on the balance of her sales. How much would she e

Alisiya [41]

The commission would be $2095.

Step-by-step explanation:

Given,

Commission on first $1000 = 7%

Amount of commission = 0.07*1000 = $70

Worth of sold items = $14,500

We will subtract $1000 from it.

Balance = 14500-1000 = $13500

Commission on balance = 15% = 0.15

Amount of commission = 0.15*13500

Amount of commission = $2025

Total commission = 70+2025 = $2095

The commission would be $2095.

Keywords: percentage, subtraction

Learn more about subtraction at:

#LearnwithBrainly

3 0

3 years ago