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2 years ago

What percent is equivalent to 3/10

Mathematics

2 answers:

Rama09 [41]2 years ago

8 0

Answer:

30%

Step-by-step explanation:

$\frac{3}{10} *\frac{10}{10}$

aleksklad [387]2 years ago

4 0

30%

3/10 x 10/10
Move the decimals till it’s a 30

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the average cost of regular gasoline in north carolina increased by 73% from 2006 to 2007. If the average cost of a gallon of ga

mash [69]

You would need to do 2.069+73% which would get you 3.57937

5 0

3 years ago

This circle graph shows the results of a survey that asked 80

Monica [59]

Answer:

32 people

Step-by-step explanation:

Looking at the graph, we can say that 40% of the people rode the bus. We also know that 80 people took the survey.

<u>Solution:</u>

40/100 x 80
=> 2/5 x 80
=> 2 x 16
=> 32 people

Hence, 32 people rode the bus.

4 0

2 years ago

Read 2 more answers

How can i find the volume of this figure help please

valentinak56 [21]

Answer:

The answer is 463 inch cubed

Step-by-step explanation:

you do 8 x 8 x 7 which will give you 448 volume for just the cube.

then you do 5 x 3 x 1 = 15

you add 448 with 15 you will get 463

6 0

2 years ago

Apply the square root principle to solve (x-5)^2-40=0

Nitella [24]

Answer: {5 ± 2√10, 5 - 2√10}

Step-by-step explanation: First isolate the binomial squared by adding 40 to both sides to get (x - 5)² = 40.

Next, square root both sides to get x - 5 = ± √40.

Notice that root of 40 can be broken down to 2√10.

So we have x - 5 = ± 2√10.

To get <em>x</em> by itself, add 5 to both sides to get x = 5 ± 2√10.

So our answer is just {5 ± 2√10, 5 - 2√10}.

As a matter of form, the number will always come before the

radical term in your answer to these types of problems.

In other words, we use 5 ± 2√10 instead of ± 2√10 + 5.

4 0

2 years ago

Two boys and three girls are auditioning to play the piano for a school production. Two students will be chosen, one as the pian

finlep [7]

Answer:

30% is the correct answer.

Step-by-step explanation:

Total number of boys = 2

Total number of girls = 3

Total number of students = 5

To find:

Probability that the pianist will be a boy and the alternate will be a girl?

Solution:

Here we have to make 2 choices.

1st choice has to be boy (pianist) and 2nd choice has to be girl (alternate).

$\bold{\text{Required probability }= P(\text{boy as pianist first}) \times P(\text{girl as alternate})}$

Formula for probability of an event E is given as:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

For $P(\text{boy as pianist})$ , number of favorable cases are 2 (total number of boys).

Total number of cases = Total number of students i.e. 5

So, $P(\text{boy as pianist})$ is:

$P(\text{boy as pianist}) = \dfrac{2}{5}$

For $P(\text{girl as alternate})$ , number of favorable cases are 3 (total number of girls).

Now, one boy is already chosen as pianist so Total number of cases = Total number of students left i.e. (5 - 1) = 4

$P(\text{girl as alternate}) = \dfrac{3}{4}$

So, the required probability is:

$\text{Required probability } = \dfrac{2}{5}\times \dfrac{3}{4} = \dfrac{3}{10} = \bold{30\%}$

6 0

3 years ago