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2 years ago

Dont undersrand this at allll...

Mathematics

2 answers:

zvonat [6]2 years ago

7 0

2.3 is your answer, you have to do the equation

Taya2010 [7]2 years ago

4 0

Answer:

2.3 2 1/3

Step-by-step explanation: you add up all the bikes then divide them by 3 because that's the number of people

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PLEASE HELP FAST! A yogurt shop allows its customers to add, for no charge, 3 toppings to any yogurt purchased. If the store has

Kisachek [45]

Answer:

the answer is 8

4 0

3 years ago

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In a nursery class of 18 pupils, the average is 4<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7D%20" id="TexFormula1"

Alisiya [41]

Answer:

The sum of ages of all 18 pupils in the class = 81

Step-by-step explanation:

Total number of pupil in the class = 18

Average of years in the class = $4\frac{1}{2}$

Now, $4\frac{1}{2} = 4 + \frac{1}{2} = 4 + 0.5 = 4.5$

⇒Average of sum of ages in the class = 4.05

Let us assume the sum of ages of all students in the class = m

By the formula for AVERAGE:

$\textrm{Average of n obseravtions} = \frac{\textrm{Sum of n observations}}{\textrm{n}}$

$\implies 4.5 = \frac{m}{18}$

or, m = 18 x 4.5 = 81

Hence, the sum of ages of all 18 pupils in the class = 81

6 0

3 years ago

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Which equation represents a line perpendicular to the line whose equation is 2x+3y=12?

Gnoma [55]

Answer:

use socratic i think they have the answer!! im not good at math sorry love!

Step-by-step explanation:

5 0

3 years ago

The segments shown below could form a triangle.<br> help please :)

leonid [27]

That’s false because two lines are to short so it’s false

8 0

3 years ago

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Find x<br><br>please help!!

riadik2000 [5.3K]

Answer: $9\sqrt{3}$

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Explanation:

For any 30-60-90 triangle, the short leg is always half the hypotenuse.

This makes the short leg to be 18/2 = 9 units long.

We then multiply this by $\sqrt{3}$ to get the length of the long leg.

$\text{long leg} = (\text{short leg})*\sqrt{3}\\\text{long leg} =9\sqrt{3}$

Or you could use the pythagorean theorem to solve $x^2+9^2 = 18^2$ and you should get $x = \sqrt{243} = 9\sqrt{3}$

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3 years ago