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2 years ago

What is the answer x + 2x + 3(x + 4) = 5x - 6

Mathematics

1 answer:

dybincka [34]2 years ago

5 0

Answer:

x= -18

Step-by-step explanation:

x + 2x + 3(x + 4) = 5x-6

Distribute

x+2x+3x+12 = 5x-6

Combine like terms

6x +12 = 5x-6

Subtract 5x from each side

6x+12 -5x= 5x-6-5x

x+12 = -6

Subtract 12 from each side

x+12-12 = -6-12

x= -18

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4x-6 + 2x = 18<br> What’s the answer

solmaris [256]

Answer:

x=4

Step-by-step explanation:

4x-6 + 2x = 18

Combine like terms

6x -6 = 18

Add 6 to each side

6x-6+6 =18+6

6x = 24

Divide each side by 6

6x/6 = 24/6

x =4

6 0

3 years ago

Jerry has a miniature model of a boat. He knows that the boat is 3 3/4 inches wide and 5 1/2 inches long. What is the actual len

FromTheMoon [43]

Width of the miniature model = $3\frac{3}{4}$ inches

Length of the miniature model = $5\frac{1}{2}$ inches

The actual width of the boat = 15 feet

Let us find the actual length of the boat.

Write it in a proportion form.

width of model : length of model : : width of actual : length of actual

$$\Rightarrow 3\frac{3}{4}:5\frac{1}{2}::15:x$

$$\Rightarrow\frac{15}{4}:\frac{11}{2}::15:x$

$$\Rightarrow\frac{\frac{15}{4}}{\frac{11}{2}} =\frac{15}{x}$

Do cross multiplication.

$$\Rightarrow{\frac{15}{4}x =15\times\frac{11}{2}$

$$\Rightarrow{\frac{15}{4}x =\frac{165}{2}$

$$\Rightarrow x =\frac{165}{2}\times{\frac{4}{15}$

⇒ x = 22

Hence the actual length of the boat is 22 feet.

6 0

3 years ago

What is 33 1/3 of 51 equals what please show work

Leona [35]

If ur asking for it in percent, it is 17. 33 1/3 percent is the same thing as 1/3 of a number. therefore, u multiply 51 by one third or divide 51 by 3

7 0

2 years ago

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What is the value of x

dedylja [7]

89 squared. The hypotenuse is equal to 9.434 which is 89 squared.

4 0

2 years ago

PLEASE HELP!!!! I WILL MARK BRAINLYEST!!!!

shusha [124]

True they are equivalent fractions both are divided by -3 to get 14/15

8 0

2 years ago

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