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3 years ago

Use the circle graph to determine how much hours per day Becky spends on each activity?

Mathematics

2 answers:

blagie [28]3 years ago

7 0

WE know 1 day = 24 hours

To find number of hours spent on each activity, we multiply the corresponding percentage by 24

School : 25 % --> 0.25 * 24 = 6.00 hrs

Eating : 10 % ----> 0.1 * 24 = 2.40 hrs

Sleep : 40 % ----> 0.4 * 24 = 9.60 hrs

Homework: 10 % ---->0.1 * 24 = 2.40 hrs

Free time: 15 % -----> 0.15 * 24 = 3.60 hrs

ohaa [14]3 years ago

3 0

There are 24 hours in a day.
Simply multiply the corresponding percentage to 24 hours to get its corresponding number of hours spent in a day.

School : 25 % x 24 = 6.00 hrs
Eating : 10 % x 24 = 2.40 hrs
Sleep : 40 % x 24 = 9.60 hrs
Homework: 10 % x 24 = 2.40 hrs
Free time: 15 % x 24 = 3.60 hrs
Total 100% 24 hrs.

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Y= -4x + 10? What is the slope of the line?

Salsk061 [2.6K]

Answer:

-4 or -4/1

Step-by-step explanation:

The equation is in y=mx+b form

m is the slope, and b is the y intercept

So, for this line, y=-4x+10

-4 is the slope and 10 is the y intercept

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2 years ago

Suppose that poaching reduces the population of an endangered animal by 6% per year. Further suppose that when the population o

artcher [175]

If poaching reduces the population of an endangered animal by 6% and the criteria of population extinction is 20 with present population 1500 then it will take 3.62 years to reach to the mark of extinction.

Given Poaching reduces the population of endangered animals by 6% per year. The criteria of population extinction is 20. Present population being 1500.

Number of years taken by the population of endangered animals to reach to 20 mark can be calculated as under:

20=1500* $(1-0.06)^{n}$

20=1500* $0.94^{n}$

20/1500= $0.94^{n}$

0.133= $0.94^{n}$

take log both sides

log(0.133)=log $0.94^{n}$ -------1

log(0.133)=nlog (0.94)

put the values log values:

log(0.133)=-0.8761

log(0.94)=-0.0268

Taking 1

-0.8761=n*(-0.0268)

n=0.8761/0.0268

n=3.269

Hence to reach level of 20 the population takes 3.2 years.

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1 year ago

Which set of ordered pairs represents a function? (1 point) {(0, 1), (1, 3), (1, 5), (2, 8)} {(0, 0), (1, 2), (2, 6), (2, 8)} {(

Aleonysh [2.5K]

Answer:

{(0, 2), (1, 4), (2, 6), (3, 6)}

Step-by-step explanation:

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2 years ago

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nekit [7.7K]

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2 years ago

The population at Bishop High School is 2000 students in 2011. Every year the population decreases by 50 students

Artemon [7]

Answer:

Let p be the population at t be the number of years since 2011. Then, $p=2000-50t$

The projected population of the high school in 2015=1800
In 2019 the population be 1600 students

Step-by-step explanation:

Given: The population at Bishop High School students in 2011 =2000

Also, Every year the population decreases by 50 students which implies the rate of decrease in population is constant.

So, the function is a linear function.

Let p be the population at t be the number of years since 2011.

Then, $p=2000-50t$

So at t=0, p=2000

In year 2015, t=4, substitute t=4 in the above equation ,we get

$p=2000-50(4)\\\Rightarrow\ p=2000-200\\\Rightarrow\ p=1800$

Hence, the projected population of the high school in 2015=1800

Now, put p=1600 in the function , we get

$1600=2000-50t\\\Rightarrow50t=2000-1600\\\Rightarrow50t=400\\\Rightarrow\ t=\frac{400}{50}\\\Rightarrow\ t=8$

Now, 2011+8=2019

Hence, in 2019 the population be 1600 students

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2 years ago