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2 years ago

Select the correct expressions. Which expressions are equivalent to 3x + 2(x − 1) − 4?

Mathematics

1 answer:

mariarad [96]2 years ago

3 0

Answer:

3x + 2(x − 1) − 4?

3x + 2x - 2 - 4

5x - 6

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Seventh grade

kupik [55]

-5+1+-2+9v+-5v

-3+1+4v

-2+4v

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2 years ago

All the items on the sale rack were 75 percent off their original price.

tresset_1 [31]

Answer:

112 $ is the original price

Step-by-step explanation:

$x \times 0.75 = 84 \\ x = 84 \div 0.75 \\ x = 112$

you have to think that the original price multiplied by 0.75 (also known as 75%) gave the result of what he saves i.e 84 $. So we put up an equation with the original price multiplied by 75% which equals the 84 $ he saved on buying that item on sale

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3 years ago

Chris bought 12.4 gallons of gasoline. There are approximately 3.8 liters in 1 gallon. Which measurement is closetsto the number

Damm [24]

Answer:

C 47.12 L

Step-by-step explanation:

1 gallon = 3.8 liters

12.4 gallons = x

Cross Multiply

= 12.4 × 3.8

47.12 liters

Option C is correct

5 0

3 years ago

PLEASE HELP ME 2x+45=90

arsen [322]

Answer:

x = 45/2 = 22.5 cm

Step-by-step explanation:

2x + 45 = 90

2x = 90- 45= 45

2x = 45

x = 45/2 = 22.5 cm

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you .

if you find it useful.

8 0

3 years ago

a marble was randomly selected from a bad containing 3 red marbles , 3 blue marbes and 3 green marbles . what is the probability

galina1969 [7]

Answer:

$\frac{1}{3}$

Step-by-step explanation:

If there are 9 marbles in total and the desired outcome is to pick a green marble then the probability is $\frac{desired outcome}{totaloutcomes}$ = $\frac{3}{9}$ which simplifies down to a third.

8 0

3 years ago

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