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3 years ago

What is the value of the expression 24 + 10•8?

Mathematics

1 answer:

Akimi4 [234]3 years ago

4 0

Answer:

$\large\boxed{\text{The expression is equal to 104}}$

Step-by-step explanation:

$24+10 \cdot 8 \\24+80\\104$

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What is the rational number equivalent to 3.24 ?

IgorC [24]

3.24=3+24/100=300/100+24/100=324/100=162/50=81/25

7 0

3 years ago

How to solve? 2x - 5 = 11

shutvik [7]

Answer:

Add

to both sides of the equation

−

Simplify

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Divide both sides of the equation by the same term

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Solution

Step-by-step explanation:

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3 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

4 years ago

The heights, in inches, for 120 people (male and female) have been measured. The results are presented:Heights sample data: 66.1

Rzqust [24]

Answer:

70.4

Step-by-step explanation:

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8 0

3 years ago

Any and all questions will get a thanks And 4 stars.

Ivenika [448]

The two ends of the track are semi circles, so we need to calculate the circumference:

Circumference = PI x 56 = 175.84

The two straight parts are 130 m each:

Total perimeter = 175.84 + 130 + 130 = 435.84 m

The answer is D.

4 0

4 years ago