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andrezito [222]
3 years ago
8

When you add a positive and negative number, how can you tell whether the sum will be positive or Negative? ​

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
8 0

Answer:

just remember this:

negative x negative = positive

positive x positive = positive

postive x negative = negative

negative x postive= negative

lookon bbcbitesize for adding negatives and positive rule

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This is pretty easy! Please help!❤️❤️❤️
vladimir1956 [14]
99m I think I not sure though
6 0
3 years ago
Hayden earns $9.50 per hour as a lifeguard.He earns a bonus of $50.00 for taking a training course.How many hours must he work t
mel-nik [20]

Answer: he must work for at least 26.32 hours

Step-by-step explanation:

Let x represent the number of hours that Hayden works as a life guard.

Hayden earns $9.50 per hour as a lifeguard. This means that the amount that he earns for working for x hours would be

9.5x

He earns a bonus of $50.00 for taking a training course. If he takes this bonus cost, the amount that he would earn for working for x hours is

9.5x + 50

Therefore, the number of hours that he must work to earn at least $300.00 would be

9.5x + 50 ≥ 300

9.5x ≥ 300 - 50

9.5x ≥ 250

x ≥ 250/9.5

x ≥ 26.32

4 0
3 years ago
a family is building a rectangular fountain in the backyard. the yard is rectangular and measures 8x by 9x. The fountain is goin
densk [106]
Teachers often all this problem a donut problem because it’s like the donut hole getting cut out of the middle. The way that you solve this is to find the area of the whole yard and subtract the area of the fountain. Since they are rectangles we’re going to use A = LW
Area of yard - Area of fountain
A = (8x)(9x) - (2x)(5x)
A = 72 x^2. - 10 x^2
A 62 x^2

5 0
3 years ago
Read 2 more answers
I need help with this question
tia_tia [17]

Answer:

98 in.^2

Step-by-step explanation:

The lateral area is the sum of the areas of the 3 rectangular sides.

The triangular sides are the bases.

lateral area = 7.2 in. * 5 in. + 3 in. * 5 in. + 9.4 in. * 5 in.

lateral area = 36 in.^2 + 15 in.^2 + 47 in.^2

lateral area = 98 in.^2

3 0
2 years ago
Mel Company has a net income, before taxes, of $95,000. The treasurer of the company estimates 45% of net income will have to be
docker41 [41]
95,000 x .45=$42,750 for both federal and state tax..
☺☺☺☺

6 0
3 years ago
Read 2 more answers
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