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2 years ago

Which expression is equivalent to (7x - 5) - (3x - 2)

Mathematics

1 answer:

Kryger [21]2 years ago

7 0

Answer:

$4x-3$

Step-by-step explanation:

$(7x-5) -(3x-2)$

Remove unnecessary parentheses

$7x-5-(3x-2)$

When there is a " _" in front of any expression in parentheses , change the sign of each term of the expression.

$7x-5-3x+2$

Collect Like terms by subtracting their Coefficients

$(7-3)x$

Subtract the numbers

$4x-5+2$

Keep the sign of the number with the larger absolute value and subtract the smaller absolute value from the larger

$-(5-2)$

Subtract the numbers

$-3$

$4x-3$

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Will give correct answer brainliest

Elodia [21]

Answer:

2. Division property of equality

3. x+1 = -4

4. Subtraction property of equality

5. x = -5

Step-by-step explanation:

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2 years ago

For every 4 gallons of green paint he uses 3 gallons of blue paint. Drag the correct number of each type of paint into the box t

Inga [223]

Answer:

Amount of green color used =

$\dfrac{64}{7}\text{ gallons}$

Step-by-step explanation:

We are given the following in the question:

Every 4 gallons of green paint is mixed with 3 gallons of blue paint. to make a particular shade.

Ratio of green color to blue paint can be calculated as:

$=\dfrac{\text{Amount of green color}}{\text{Amount of blue color}}\\\\=\dfrac{4}{3}$

Amount of shade = 16

Amount of green paint = $4x$

Amount of blue paint = $3x$

Thus, we can write:

$4x + 3x = 16\\7x = 16\\\\x = \dfrac{16}{7}$

Amount of green color used =

$4x = 4\times \dfrac{16}{7} = \dfrac{64}{7}\text{ gallons}$

Amount of blue paint used =

$3x = 3\times \dfrac{16}{7} = \dfrac{48}{7}\text{ gallons}$

4 0

2 years ago

Select the option for ? 3, 5, 12, 55, 648, ?

Rudik [331]

Answer:

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1 year ago

an air conditioning system can circulate 360, cubic feet of air per minute. how many cubic yards of air can it circulate per min

ahrayia [7]

Alright, lets get started.

3 feet = 1 yard

If we cube both sides of the equation, we will get the conversion into cubic yards

So,

$3*3*3 cubic feet = 1 * 1*1 cubic yards$

27 cubic feet = 1 cubic yards

So, 1 cubic feet = $\frac{1}{27}$ cubic yards

So, 360 cubic feet = $360 *\frac{1}{27}$ cubic yards

So, 360 cubic feet = 13.33 cubic yards

13.33 cubic yards of air can it circulate per minute. : Answer

Hope it will help :)

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3 years ago

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Find the difference: 27.85 - 0.1

Naya [18.7K]

The answer for the problem is 27.75

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2 years ago

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