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3 years ago

Please help, its due tomorrow and I'm literally dying man.

Mathematics

1 answer:

Morgarella [4.7K]3 years ago

3 0

Help with what brooooooo mines due tomorrow too

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HELP BRAINISET TO WHOEVER RIGHT

Natasha_Volkova [10]

Answer:

A: 171.75

B: 170

Step-by-step explanation:

The mean (or average) can be found by...

- add all the numbers together (we will call this y)

- divide the total sum (or y) by the total amount of numbers used to add

Formula:

(x₁ + x₂ + x₃ + ... + xₙ) ÷ n

For A:

(172 + 130 + 173 + 212) ÷ 4 = 171.75

For B:

(136 + 184 + 168 + 192) ÷ 4 = 170

8 0

3 years ago

Write an expression for the following. "The sum of a number and 12 times 4

andriy [413]

Answer:

4(x + 12)

Step-by-step explanation:

The sum of a number and 12 indicates addition. Then, it says that this sum will be multiplied by 4. So, we can use x to represent this random number.

7 0

3 years ago

How many floor boards 2-1/4 inches wide are needed to cover a floor 15 feet wide

a_sh-v [17]

Answer:

180 inches divide by 2.25 inches is 80

3 0

4 years ago

Ifn || m, find the value of x and the value of y.

Marat540 [252]

Answer: Option C

$y=5$ , $x=10$

Step-by-step explanation:

If the lines m and n are parallel then the large triangle and the small triangle are similar triangles, because they have equal angles.

By definition for similar triangles it is satisfied that if they have sides of length a, b, c and a', b', c' then:

$\frac{a}{a'}=\frac{b}{b'} =\frac{c}{c'}$

In this case

$a = 12\\a' = 4\\c = 15\\c' = y$

So:

$\frac{12}{4}=\frac{15}{y}$

Now solve the equation for the variable y

$3=\frac{15}{y}$

$y=\frac{15}{3}$

$y=5$

We know that

$x+y=15$ and $y=5$

Then

$x+5=15$

$x=10$

Finally the answer is:

$y=5$ , $x=10$

5 0

3 years ago

Round 199.532 to the nearest n tenth

Musya8 [376]

199.53 is correct. Brainliest?

7 0

3 years ago