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3 years ago

(Give Brainliest)need ASAP

Mathematics

1 answer:

cupoosta [38]3 years ago

3 0

Answer:

the answer is 1/2

Step-by-step explanation:

Mean is add up all the numbers and divide by how many numbers there is, so -(2+5-10+15)/4, which is 2/4 or 1/2 plz mark brainliest hope this helps

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Write a equation form for this sentence, of the 37 choir members, 21 were girls, let b represent the boys in the chior

Elena-2011 [213]

Write a equation form for this sentence, of the 37 choir members, 21 were girls, let b represent the boys in the choir

37=b+21 or 37=21+b

8 0

3 years ago

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How do you solve (7x + 5) - (3x + 2)

Korolek [52]

Answer:

x = 0.75

Step-by-step explanation:

Simplifying

(7x + -5) + -1(3x + -2) = 0

Reorder the terms:

(-5 + 7x) + -1(3x + -2) = 0

Remove parenthesis around (-5 + 7x)

-5 + 7x + -1(3x + -2) = 0

Reorder the terms:

-5 + 7x + -1(-2 + 3x) = 0

-5 + 7x + (-2 * -1 + 3x * -1) = 0

-5 + 7x + (2 + -3x) = 0

Reorder the terms:

-5 + 2 + 7x + -3x = 0

Combine like terms: -5 + 2 = -3

-3 + 7x + -3x = 0

Combine like terms: 7x + -3x = 4x

-3 + 4x = 0

Solving

-3 + 4x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '3' to each side of the equation.

-3 + 3 + 4x = 0 + 3

Combine like terms: -3 + 3 = 0

0 + 4x = 0 + 3

4x = 0 + 3

Combine like terms: 0 + 3 = 3

4x = 3

Divide each side by '4'.

x = 0.75

Simplifying

x = 0.75

6 0

3 years ago

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Write the decimal as a fraction or a mixed number in simplest form

natka813 [3]

-0.258 is a decimal number in which 2 is at the tenth place, 5 is at the hundredth place and 8 is at the thousandth place.

Therefore, the number in the fraction form is - $-\frac{258}{1000}$

The fraction in the simplest form is - $-\frac{129}{500}$

-0.312 is a decimal number and its fraction form is - $-\frac{312}{1000}$

The fraction in the simplest form is $-\frac{78}{250} =-\frac{39}{125}$

-2.32 is a decimal number and its fraction in the simplest form is

$-2\frac{32}{100} =-2\frac{8}{25}$

-1.64 is a decimal number and its mixed number in the simplest form is $-1\frac{64}{100} =-1\frac{16}{25}$

6.012 is a decimal number and the number in mixed number form is $6\frac{12}{1000}=6\frac{3}{250}$

-12.405 is a decimal number and the number in mixed number form is

$-12\frac{405}{1000}=-12\frac{81}{200}$

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3 years ago

A football team loses a total of 12 yards in 4 plays. On average how many yards did the team move the ball per play?

HACTEHA [7]

The team moved the ball -3 yards per play.

Step-by-step explanation:

Given,

Total yards lost = 12 yards

Total plays = 4 plays

As the yards are lost, therefore, we will use negative sign.

Yards per play = $\frac{Number\ of\ yards}{Number\ of\ plays}$

Yards per play = $\frac{-12}{4}$

Yards per play = -3

The team moved the ball -3 yards per play.

Keywords: division, unit rate

Learn more about division at:

#LearnwithBrainly

8 0

4 years ago

Please help!!!!!!!!

Afina-wow [57]

Answer is C.

The sample is selected at tandon from the population, but it was done on a particular day of the week. So the sample is not random.

More data should be taken, distributed on every day of the week, probably in different months.

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4 years ago

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