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3 years ago

A standard die is rolled three times. What is the probability of rolling a number less than 5 on all three rolls?

Mathematics

1 answer:

katrin [286]3 years ago

4 0

Answer:

5/6

Step-by-step explanation:

This is because when you roll three times, there are 18 possible numbers (six numbers three times). If you want to get less than five each time, that is 5 number x 3 rolls = 15 numbers.

So...You get 15/18 which simplifies to 5/6

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A sample of 184 light bulbs contained 6 defective bulbs, at this rate ,how many defective bulbs would you expect to find in a sa

givi [52]

184 x 7 = 1288
7 x 6 = 42
so you have 42 <span>defective bulbs</span>

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3 years ago

Lizards can eat 45 ants per minute. How long would it take to eat 1,080 ants?

dsp73

Answer: 24 minutes!

Step-by-step explanation: As mentioned, it can eat 45 ants per minute, How long would it take to eat 1,080 ants?

It's simple, just divide 1080 by 45 and when you divide it, the answer is 24!

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3 years ago

The larger of two numbers is 7 times the smaller number. Three times the larger number is 7 more than 4 times the smaller number

Juliette [100K]

Let the smaller number be x.

Given, the larger number is 7 times the smaller number.

So, the larger number = 7x.

Given, 3 times the larger number is 7 more than 4 times the smaller number.

So we can write the equation as,

$3(7x) = 4(x)+7$

$3(7x) = 4x+7$

$21x = 4x+7$

Now we have to move 4x to the left side by subtracting 4x from both sides.

$21x-4x = 4x-4x+7$

$21x-4x = 7$

$17x = 7$

To get x, we will divide both sides by 17. We will get,

$\frac{17x}{17} = \frac{7}{17}$

$x = \frac{7}{17}$

So the smaller number = $\frac{7}{17}$

The larger number = $7(\frac{7}{17} )$ = $\frac{49}{17}$

So we have got the required numbers.

Smaller number = $\frac{7}{17}$ and larger number = $\frac{49}{17}$ .

4 0

3 years ago

Geometry help will give brainliest

Natali [406]

6x + 4x + 10 = 180
10x = 170
x = 17

mCA = 4(17) + 10 = 68 + 10 = 78

Answer:
mCA = 78°

8 0

3 years ago

There are 3 quarters, 5 dimes, and 2 nickels, in a jar. P(dime then dime without replacement)?

Roman55 [17]

Can yu give more explanation

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3 years ago