Find the probability that you will roll an even number exactly 5 times when you:

Mathematics

1 answer:

Naily [24]2 years ago

3 0

Answer:

The first one is 0.246

The second one is 0.015

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DENIUS [597]

Answer:

s = 70

Step-by-step explanation:

$\frac{s}{10} = 7$

$10 \times \frac{s}{10} = 10 \times 7$

$s = 70$

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3 0

1 year ago

Select all ratios equivalent to 15:5.<br> 9:3<br> 6:2<br> 3:1

natali 33 [55]

Answer:

All three.

Step-by-step explanation:

All three of these ratios are equivalent to 15:5. Here's how:

Let's look at the first ratio, 9:3. Did you notice something common? 3 x 3 = 9. 9/3 = 3. 5 x 3 = 15. 15/3 = 5. Both of these numbers are divisible by 3, so these ratios are equivalent.

Second. 6:2. 2 x 3 = 6. 6/3 = 2. 5 x 3 = 15. 15/3 = 5. See the similarity? The same applies to the next problem, number three, although it does slightly differentiate.

Third, 3:1. See, here, since the ratio is smaller than the problem, we can't multiply, since this ratio is smaller than the original number. But, it's still the same thing. A ratio is a number that compares a value to another value. This means that 3:1 is 3 compared to one. Now, let me clarify. 15:5. 3:1. These are the exact same values, except they are just written in a different form, and simplified. Since 5 x 3 = 15, we know that we can divide 15 evenly by 5, which makes it 3, and divide 5 evenly by 5, which equals one. So here we have our answer for the third problem. 5:1.

Ratios are basically division, except simplified. Every single ratio problem works this way. Once you get the hang of it, it's immensely easy. Hope this helped!

6 0

2 years ago

4 - lxl = 1<br> Solve for x

Leokris [45]

Answer: 3 or -3

Step-by-step explanation:

4 - |x| = 1

First subtract 4

-|x| = -3

The | | sign makes it both positive and negative

So -|3| and -|-3| will = -3

4 0