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3 years ago

What is the probability of throwing a number greater than 4 when rolling a number cube that has sides labeled 1, 2, 3, 4, 5, 6?

1 answer:

4 0

What is probability rolling a number greater than 4?

The only numbers there are is 5 and 6.
That means that there are 2 outcomes out of 6 total outcomes.
That would be 2/6.
Divide the the top and bottom by 2.
In simplest form it would be 1/3.
2/6=1/3

The answer is 1/3. The probability of throwing a number greater than 4 is 1/3.

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How can we write an algebraic expression to describe a two-digit number whose unit's digit is 5 less than the ten's digit?

vodomira [7]

Answer:

Let x= the ones digit

Then x+5=the tens digit

Hence the equation is: 10(x+5)+x=x+5+x+63

10(x+5)+x=x+5+x+63

10x+50+x=2x+68

11x+50=2x+68

-2x-50 -2x-50

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9x=18 Divide both sides of the equation by 9

x=2

Hence the number is 10(2+5)+2=10(7)+2=70+2=72.

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3 years ago

Help on this too plz:((((((,, what y’all think the answer is plz tell me :;(((

hjlf

Answer:

The First one is an Acute angle 90 degrees

Step-by-step explanation <em>The second one is an Equitateral angle has three equal sides. The third one is an obtuse greater than 90. and the last one is an right angle. has one right side.</em>

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3 years ago

What is a hundredths block shaded in fully and another hundredths block shaded in with 3 give you as fraction and decimal or mix

Leni [432]

A fraction and decimal because it equals 1 30/100 or 1 .03.

3 0

3 years ago

Read 2 more answers

5 times what gives you 130

ahrayia [7]

5 time 26 gives you 130

8 0

3 years ago

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4. Entry to a certain University is determined by a national test. The scores on this test are normally distributed with a mean

Karo-lina-s [1.5K]

Answer:

Yes, Tom must be admitted to this university.

Step-by-step explanation:

We are given that the scores on national test are normally distributed with a mean of 500 and a standard deviation of 100.

Also, we are provided with the condition that Tom wants to be admitted to this university and he knows that he must score better than at least 70% of the students who took the test.

Let, X = score in national test, so X ~ N( $\mu=500 , \sigma^{2} = 100^{2}$ )

The standard normal z distribution is given by;

Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1)

Now, z score of probability that tom scores 585 is;

Z = $\frac{585-500}{100}$ = 0.85

Now, proportion of students scoring below 85% marks is given by;

P(Z < 0.85) = 0.80234

This shows that Tom scored 80.23% of the students who took test while he just have to score more than 70%.

So, it means that Tom must be admitted to this university.

4 0

4 years ago