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2 years ago

How do you add negative numbers with positives

1 answer:

6 0

when we add negative number to the positive number we just subtract the smaller number from the larger number and put the sign or the larger number after words

examples:- First

$5 + ( - 2) = 5 - 2 = 3$

like here we put + in front of 3 as larger number 5 is positive

<h3>second</h3>

$- 7 + 5 = - 2$

we put negative because 7 is larger then 5 and 7 is negative

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Someone please help with a math test, functions stats and trig please it’s urgent!!!!!!!!!

saw5 [17]

Answer:

I need a picture of the problem your working on

Step-by-step explanation:

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3 years ago

Two pumps are filling a pool. One of them is high power and can fill the pool alone in 2 hours less time than the other can do s

KatRina [158]

Answer:

9.1 hours

Step-by-step explanation:

Make a Chart.

Column 1 is Time it takes to do the job alone

Column 2 is Rate of Work ( 1 over the expression in Column 1)

Column 3 is Time it takes to do the job together

Column 4 is Part of the Job done ( Columns 2 and 3 multiplied together )

Row 1 is the First pipes info.

Row 2 is the Second pipes info.

The equation comes from column 4. Part of the Job from Pipe 1 + Part of the Job from Pipe 2 = 1 (the whole job)

So Row 1 for Pipe 1, the small pipe, would look like this: x , 1/x , 4 , 4/x

Row 2 for Pipe 2, the larger pipe, would look like this: x - 2 , 1/x-2 , 4 , 4/(x-2)

So, the equation would be: 4/x + 4/(x-2) = 1

Solve this equation by first multiplying both side by x(x-2) to clear the denominators.

So the equation becomes: 4(x-2) + 4x = x(x-2)

Distribute and combine like terms, then get everything on one side of the equation.

So the equation becomes: x^2 - 10x + 8 = 0

Use the quadratic equation to solve for x. Solutions are x = 9.1 and x = .9

.9 hours does not make sense so throw that solution out (with the dirty pipe water :) )

9.1 hours makes sense for how long it would take the smaller pipe working alone to fill the pool.

3 0

3 years ago

Read 2 more answers

Jim has 493 stamps in her stamp collection. She can put 16 stamps on each page of an album. HOw many pages can she fill complete

fenix001 [56]

30 pages.
divide 493 by 16

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3 years ago

What is the domain of the relation?

Thepotemich [5.8K]

Answer: $-4$

Step-by-step explanation:

Domain: x-axis

Range: y-axis

The relation graph shows the points in which the domain is located. To find the Domain, go to the point in the x-axis (the horizontal line) and note the number where the point lies. For this question, the point on the left side of the graph lies on negative four ( $-4$ ), and on the right side, the point is on 6. Therefore, the domain of this relation is negative four is greater than/equal to x is less than/equal to six. It could also be written like this: $-4\leq x\leq 6$ .

Learn more: brainly.com/question/24574301

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3 years ago

I WILL GIVE BRAINLIEST

rosijanka [135]

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3 years ago