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3 years ago

Can someone please explain inverse operations to me??

Mathematics

2 answers:

Ratling [72]3 years ago

8 0

Answer:

The operation that reverses the effect of another operation. Example: Addition and subtraction are inverse operations. Start with 7, then add 3 we get 10, now subtract 3 and we get back to 7.

Step-by-step explanation:

Katena32 [7]3 years ago

4 0

Answer:

Inverse operations are opposite operations that undo each other. Addition and subtraction are inverse operations. Multiplication and division are inverse operations.

PLZ MARK AS BRAINLIEST

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Can your explain it to meet plaza im confussed

Lemur [1.5K]

No wonder !

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3 years ago

Look at screenshot please

Dafna1 [17]

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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

Logan genetically engineered a new type of fir tree and a new type of pine tree. The combined height of one fir tree and one pin

shepuryov [24]

Answer:

The types of trees that Logan genetically engineered are fir trees 9 meters tall and pine trees 12 meters tall.

Step-by-step explanation:

Given:

The combined height of one fir tree and one pine tree is 21 meters.

The height of 4 fir trees stacked on top of each other is 24 meters taller than one pine tree.

Now, to find the height of types of trees that Logan genetically engineered.

Let the height of fir tree be $x.$

And let the height of pine tree be $y.$

So, the combined height of both the trees:

$x+y=21\\\\x=21-y\ \ \ .....(1)$

As given, the height of 4 fir trees stacked on top of each other is 24 meters taller than one pine tree.

Thus,

$4x=y+24$

Now, substituting the value of $x$ from equation (1):

$4(21-y)=y+24$

$84-4y=y+24$

Subtracting both sides by 24 we get:

$60-4y=y$

Adding both sides by $4y$ we get:

$60=5y$

Dividing both sides by 5 we get:

$12=y\\\\y=12\ meters.$

The height of pine trees = 12 meters.

Now, substituting the value of $y$ in equation to get the height of fir trees:

$x=21-y\\\\x=21-12\\\\x=9\ meters.$

The height of fir trees = 9 meters.

Therefore, the types of trees that Logan genetically engineered are fir trees 9 meters tall and pine trees 12 meters tall.

4 0

3 years ago

Ted has some red blocks and some green blocks.

MakcuM [25]

A red block is 2 ounces and a green block is 4. This would make the answer 6 for the total weight of one of each block.

3 0

3 years ago