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3 years ago

(13x + 2x³ - 6 - x²)÷(x-3)

Mathematics

1 answer:

KengaRu [80]3 years ago

3 0

Answer:30

Step-by-step explanation:

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Person A can paint the neighbor's house 5 times as fast as Person B. The year A and B worked together, it

LenKa [72]

Answer:

Person A paints the house in 12 days.

person B paints the house in 60 days.

Step-by-step explanation:

The together rate is the sum of each separate rate.

Person A can paint the neighbor's house 5 times as fast as Person B.

This means that the rate of person A is 1/x, and the rate of person B is 1/5x.

The year A and B worked together, it took them 10 days.

This means that:

$\frac{1}{x} + \frac{1}{5x} = \frac{1}{10}$

Multiplying everything by 10x

$10 + 2 = x$

$x = 12$

This means that:

Person A paints the house in 12 days.

person B paints the house in 60 days.

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2 years ago

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VashaNatasha [74]

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Step-by-step explanation:

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2 years ago

Alina [70]

If you follow the order of pemdas the answer would be (-24)

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2 years ago

Allen wants to have a mean of 90 on his math quizzes. So far, he has scored 86, 94, 88, 95, and 89. What is the least score that

viva [34]

Answer:

Step-by-step explanation:

$\frac{86 + 94 + 88 + 95 + 89 + x}{6} = 90$

The mean would be the sum of all the math quiz grades divided by the number of quizzes taken.

Solve for x:

$86 + 94 + 88 + 95 + 89 + x = 540$

$452 + x = 540$

$x = 88$

Thus, Allen needs at least an 88 to obtain a mean of at least 90.

3 0

3 years ago

Pls help… grade 6/ primary 6 work. thanks!

Yuri [45]

Answer:

320

Step-by-step explanation:

go backwards, 75 + 45 = 120

120 * 5/3 = 200

200+40 = 240

240 *4/3 = 320

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2 years ago

(13x + 2x³ - 6 - x²)÷(x-3)​

(13x + 2x³ - 6 - x²)÷(x-3)