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3 years ago

On the pie chart below, which “slice” red presents 30% of the budget?

Mathematics

2 answers:

mojhsa [17]3 years ago

7 0

Answer:The answer is 4

Step-by-step explanation:

Apex

salantis [7]3 years ago

3 0

B. 2

1 is way too big, 4 is way too small, 3 is clearly less than a fourth of the pie chart, so it must be 2.

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a girl wants to count the steps of a moving escalator which is going up. if she is going up on it, she counts 60 steps. if she i

Leto [7]

Let

x--------> the speed of the girl in step

y--------> the speed of the escalator in step

d------> the distance between ground and floor.

we know that

$speed=\frac{distance}{time} \\ \\ time=\frac{distance}{speed}$

when the girl is going up on escalator

$x-y=\frac{d}{60}$ ----> equation $1$

when the girl is going down on escalator

$x+y=\frac{d}{90}$ -------> equation $2$

Adds equation $1$ and equation $2$

$2x=\frac{d}{60} +\frac{d}{90} \\ \\ 2x=\frac{5}{180} d$

$x=\frac{5}{360}d$ --------> equation $3$

Time to climb (in step) with y=0 (escalator standing still)

$x*t=d\\\\ t=\frac{d}{x}$ -----> equation $4$

Substitute equation $3$ in equation $4$

$t=\frac{d}{\frac{5d}{360}} \\ \\ t=\frac{360}{5} \\ \\ t=72 steps$

therefore

the answer is

$72 steps$

5 0

3 years ago

Read 2 more answers

A survey of athletes at a high school is conducted, and the following facts are discovered: 33% of the athletes are football pla

sergejj [24]

Answer: 0.79 or 79%

Step-by-step explanation:

Given : The probability that the athletes are football players : P(A)=0.33

The probability that the athletes are basketball players: P(B)=0.66

The probability that the athletes play both football and basketball : P(A∩B)=0.20

Now, the probability that the athlete is either a football player or a basketball player is given by :-

$P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\=0.33+0.66-0.20=0.79$

Hence, the probability that the athlete is either a football player or a basketball player = 0.79

Or we can write it as 79%.

5 0

4 years ago

Read 2 more answers

What is the volume of the cube I'm confused (look at the picture to see)

77julia77 [94]

Answer: D (64)

Step-by-step explanation:

My answer is correct because, it's showing that 4 is the length, width, and height. So it bassically 4 x 4 x 4 in other words 4 exponent 3. And 4 exponent 3 would equal 64.

Hope This Helps!

3 0

3 years ago

Review

IceJOKER [234]

Answer:

Eric drove 28 7/11 miles with 1 gallon of gas.

Step-by-step explanation:

You just use long division and do 315 divided by 11, and you should get 28R7 so you just turn that R7 into 7/11.

Have a nice rest of your day :)

6 0

2 years ago

What is 51-8 simplified as a fraction

olasank [31]

Answer:

6 3/8

THIS IS ANSWER

5 0

3 years ago

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