Ask question

Ask question

All categories

love history [14]

2 years ago

8

Simplify x+2x –8+3x+1 –2x.

1 answer:

emmainna [20.7K]2 years ago

8 0

Answer:

4x - 7

Step-by-step explanation:

x + 2x + 3x - 2x = 4x

-8 + 1 = -7

You might be interested in

olga nikolaevna [1]

Answer:

Fraction of the original board left = $\frac{2}{15}$

Step-by-step explanation:

Let the length of the board is = l feet

Marty saws off $\frac{1}{5}$ of a wooden board.

Length of the board left = l - $(\frac{1}{5})l$

= $(\frac{4}{5})l$ feet

He saws off $\frac{3}{4}th$ of the remaining board,

Board left = $(\frac{4}{5})l-[(\frac{4}{5})l\times (\frac{3}{4})]$

= $\frac{4}{5}l-\frac{3}{5}l$

= $\frac{1}{5}l$ feet

He finally saws off $\frac{1}{3}$ rd of the remaining board.

Board left = $\frac{1}{5}l-[\frac{1}{5}\times \frac{1}{3}]l$

= $(\frac{1}{5}-\frac{1}{15})l$

= $\frac{2}{15}l$ feet

Fraction of the original board left = $\frac{\frac{2}{15}l}{l}$

= $\frac{2}{15}$

6 0

2 years ago

Hugo lifted a total of 72 pounds in 9 attempts. Hugo lifted the same number of pounds in each attempt. how many pounds did he li

valkas [14]

8 attempts

72 divided by 9 equals answer

3 0

2 years ago

Read 2 more answers

A concert hall sells half price tickets to members of the armed forces. For a concert last week, the hall sold 300 tickets altog

djverab [1.8K]

Answer:

The normal ticket price is $\$22$

Step-by-step explanation:

Let

x------> the normal ticket price

we know that

The linear equation that represent this situation is

$(300-50)x+(50)\frac{x}{2}=6,050$

Solve for x

$(250)x+(25)x=6,050$

$(275)x=6,050$

$x=6,050/275=\$22$

8 0

2 years ago

Those are the math questions I need the answers of

Elena L [17]

Answer:

1)

$12\sqrt{18}-3\sqrt{50}+\sqrt{32}$

$12\sqrt{9}\sqrt{2}-3\sqrt{25} \sqrt{2} +\sqrt{16} \sqrt{2}$

$12\times3\sqrt{2} -3\times5\sqrt{2}+4\sqrt{2}$

$36\sqrt{2}-15\sqrt{2}+4\sqrt{2}$

$25\sqrt{2}$

2)

$\frac{1}{5+2\sqrt{6}}$

Multiply $5-2\sqrt{6}$ :

$\frac{1\times \left(5-2\sqrt{6}\right)}{\left(5+2\sqrt{6}\right)\left(5-2\sqrt{6}\right)}$

Apply Difference of Squares formula: $(a+b)(a-b)=a^2-b^2$

$\frac{5-2\sqrt{6}}{5^2-\left(2\sqrt{6}\right)^2}$

$\frac{5-2\sqrt{6}}{25-2^2\left(\sqrt{6}\right)^2}$

$\frac{5-2\sqrt{6}}{25-4\times6}$

$\frac{5-2\sqrt{6}}{1}$

${5-2\sqrt{6}}$

a = 5, b = -2

7 0

3 years ago

I need help ASAP I will name brainlest if you get it right and no bad answers

Dovator [93]

Answer:

1,000

Step-by-step explanation:

really sorry if wrong. But if it is wrong:

Volume= length time width time height

hope this helps! :)

8 0

2 years ago

Read 2 more answers