3 years ago

I need help with this it's urgent!

Mathematics

1 answer:

borishaifa [10]3 years ago

4 0

Oh shucks man, I'm sorry bout that

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The energy saving from recycling one glass bottle will power the oven Adam uses to cook the turkey for 7.5 minutes.

Aleksandr [31]

Energy from 1 bottle last 7.5 min

1 glass cost = 2.5 $
Since it cost 5$ for 1 kg and the bottle weight 1/2 kg

6*60 =360 min ( is in 6 hours)

2.5/? =7.5/360

? = 120 $

8 0

3 years ago

10. A bag contains 4 red balls, 6 green balls and some white balls. If the probability of not drawing a white ball in one draw b

klasskru [66]

Answer:

No of white balls = 5

Step-by-step explanation:

Given that,

Total no of red balls = 4

Total no of green balls = 6

The probability of not drawing a white ball in one draw be, $P=\dfrac{2}{3}$

We need to find the number of white balls. Let there are x balls.

The probability of drawing a white ball = 1 - the probability of not drawing a white ball

= 1 -2/3

= 1/3

Using the formula for solving probability of having a white ball.

$P=\dfrac{\text{favorable outcome}}{\text{total no of outcomes}}\\\\\dfrac{1}{3}=\dfrac{x}{4+6+x}\\\\\dfrac{1}{3}=\dfrac{x}{10+x}\\\\10+x=3x\\\\10=2x\\\\x=5$