Answers
If you need an estimate for #5, then you can round each value to the nearest whole number to have...
21.6 turn into 2120.9 turn into 2119.4 turn into 1918.5 turn into 19Add up those values: 21+21+19+19 = 80
-------------------
Another estimate you could do is to round everything to 20, since we're close to this value. Having four copies of 20 added leads to 20+20+20+20 = 80
So they rode a total estimated amount of 80 miles
--------------------
The actual total is: 21.6+20.9+19.4+18.5 = 80.4 miles, which isn't too far off from 80.
Related Questions
Anthony surveys a group of students at his school about whether they play a
sport. This table shows the results broken down by gender.
Play a sport
Total
Do not play a
sport
105
70
175
Boys
Girls
75
50
125
Total
180
120
300
Are being a girl and playing a sport Independent events? Why or why not?
O A. Yes, they are independent, because P(girl) = 0.58 and Pgirl plays
a sport) = 0.6.
O B. Yes, they are independent, because (girl) = 0.42 and girl plays
a sport) - 0.42
O c. No, they are not independent, because P(girl) = 0.42 and
P(girl plays a sport) = 0.42.
D. Yes, they are independent, because (girl) = 0.58 and P(girl plays
a sport) = 0.58
Answers
Answer:
A is the answer it sounds more likely
For given data, being a girl and playing a sport are independent events as P(girl) = P(girl plays a sport) = 0.4.
What are independent events?"These are the events whose occurrence is not dependent on any other event.""When the probability of occurrence of an event A is not affected by the occurrence of another event B, then event A and event B are independent events."Formula for probability of independent events:"If A and B are independent events then, P(A∩B) = P(A).P(B)"
What is probability?"It is a branch of mathematics which deals with finding out the likelihood of the occurrence of an event."
Formula of the probability of an event A is:P(A) = n(A)/n(S)
where, n(A) is the number of favorable outcomes, n(S) is the total number of events in the sample space.
For given question,
We have been given a table that shows the results broken down by gender.
Play sports Do not play sports Total
Boy 105 75 180
Girl 70 50 120
Total 175 125 300
Using the definition of probability:
⇒ P(girl) = Number of girls/ Number of students
⇒ P(girl) = 120/300
⇒ P(girl) = 0.4 ....................(1)
Now we find the probability of girls that play a sport.
Using the definition of probability:
P(girl plays a sport)
= Number of girls who plays a sport/ number of students who plays a sport
= 70/ 175
= 0.4 ......................(2)
From (1) and (2),
P(girl) = P(girl plays a sport)
Thus, being a girl and playing a sport are Independent events.
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How many 1/3s are in 1 2/3?
Answers
Answer:
12
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
3/3+2/3 = 5/3
Answer is 5
the diameter of a sphere is 42 centimeters. find the surface area to the nearest tenth
Answers
simplify x2 + 12x + 35/3x + 15
Answers
x+7
——— is the simplified version
3
There are 3 red, 5 green, 7 blue, 1 black and 4 yellow marbles in a bag. Once a marble is selected, it is not replaced. Find the probability of selecting a green marble, then a red marble.
Answers
Answer:
Step-by-step explanation:
Initial condition:
3 red
2 blue
5 green
2/10 times 5/9=2/9 times 5/10 or 1/2 = 2/9 times 1/2=1/9
hope this helps have a good day too.
A llne passes through the two glven points. Is it vertical, horizontal, or neither?
(1, 0), (0, 0)
O Vertical
Horizontal
Neither
Answers
Answer:
Horizontal: if y is equal to 0, then there is no vertical movement
Please Round 1.54 thank you
Answers
Answer:
okay so it would be 2 or 1.5 i dont know if you want it whole number but i will explain
if the number is 5 or more like 5.1 or even 5 you round up
if the number is under 5 like 4,3,2,1 your round down
Step-by-step explanation:
Answer:
To The Nearest Tenth : 1.5
To The Nearest Whole Number : 2
Tip:
If the number is 4 or below like 1.42 it would be rounded to 1.4
If the number if 5 or above like 2.58 it would be rounded to 2.6 or 3
I didnt know which one you wanted so I put both
convert 12 1/2 to a precent A. B. 12.5% C. 125% D. 1,250%
Answers
What is the graph of the solution for y+10>12?
Answers
Answer:
Your answer is B.
Step-by-step explanation:
find the equation of the straight line passing through the point (3, 3) which is perpendicular to the line y=-1/2x-4
Answers
Answer:
y = 2x - 3
Step-by-step explanation:
The negative recipricol is -1/(-1/2) = 2
Use point-slope equation:
y-y1 = m(x-x1)
x1 = 3, y1=3
y-3 = 2(x-3)
y-3 = 2x-6
y = 2x-3
h(-3), h(5), h(2), h(0)
h(x) = {x+1, x<2
{2x-1, x>2
Solve these:
h(-3) =
h(5) =
h(2) =
h(0) =
Answers
Answer:
h(-3) = -3h
h(5) = 5h
h(2) = 2h
h(0) = 0
What is the scale factor of this dilation?
Answers
9514 1404 393
Answer:
3/5
Step-by-step explanation:
The scale factor is the ratio ...
(image measure)/(original measure)
The diagram shows that the original measure of 5 becomes a measure of 3 on the image. The scale factor is 3/5.
Help! CAN anyone help? I’ll give Brainly!! It’s not 5.75% x 60,000... thank you
Answers
The speed you are going determines the distance you travel before coming to a complete stop after pressing the brake.
Use the computer outputs, scatterplots, and residual plots to determine which statements are true. Check all that apply.
The linear model is most appropriate.
The power model is most appropriate.
Models are always improved by transformations.
The r2 on the linear model is stronger.
The residual plot is more patterned on the linear model.
Answers
Answer:
the linear model is most appropriate, the r2 on the linear model is stronger
Step-by-step explanation:
did it on edge
Answer:
The linear model is most appropriate; The r^2 on the linear model is stronger.
Step-by-step explanation:
When compared side bu side you can see the differences.
which set of side lengths can form a triangle?
А: 2 cm, 2cm. 6 cm
B:3 cm 6 cm, 9 cm
C:4 cm, 8 cm, 5 cm
D:8 cm, 3 cm, 4 cm
Answers
Answer:
C:4 cm, 8 cm, 5 cm
Step-by-step explanation:
sum of length of any two sides of a triangle will be larger than the third side.
what is 30x + 40 factored
Answers
Answer:
1 0 ( 3 + 4 )
Step-by-step explanation:
which area 100 km or 60km
Answers
Answer:
100km
Step-by-step explanation:
Answer:
100
Step-by-step explanation:
Which expression represent the total cost for Ari to rent a bike for b hours and Meg to rent a scooter for s hours?
A,B,C,D
Answers
The expression the represent the total cost for Ari to rent a bike for b hours and Meg to rent a scooter for s hours is total cost = 9b + 10s
How to find the expression for total cost?The cost of rent for bike and scooters are different.
cost for bike = $9 per hour
cost for scooter = $10 per hour
Therefore, he expression the represent the total cost for Ari to rent a bike for b hours and Meg to rent a scooter for s hours is as follows:
total cost = 9b + 10s
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Answer: 9b + 10s
Step-by-step explanation:
I - Ready Sucks :)
Help! PLEASEEE! THANK YOU FOR HELPING BTW!
Answers
Answer:
Use the slope formula and slope-intercept form y = mx + b to find the equation you get:
y = 8x
If thats not what your looking for then for every 1 (x) you get 8 (y)
Step-by-step explanation:
If x= 4, calculate the value of: 3x2 + 4x
Answers
Step by step exploration
3*4*4+4*4=48+16=64
Answer:
64Step-by-step explanation:
x = 4
Substitute x and calculate:
3x² + 4x = 3(4²) + 4(4) = 48 + 16 = 64Please help me this is for 40 points !!!!
Answers
Plzzzz Find the value of x
Answers
Answer:
the answer is 55
Step-by-step explanation:
x + x + 90 = 180
2x + 90 = 180
2x = 180- 90 = 110
x = 110 ÷ 2 = 55
The probability that no one is waiting in a given hour
Answers
Answer:
two people in an hour
Step-by-step explanation:
thats why I think that why no one is waiting
Answer:
Step-by-step explanation:
Rosa had 592 stickers. She gave 212 stickers to Meg.
Which is the best estimate for the number of stickers Rosa has left?
A 200
B. 300
C. 400
D.700
E. 800
Answers
Answer: I need help with this as fast as someone can. PLS let me know who to do it
Step-by-step explanation:
How many times can you fill a 250ml cup from a 4 litre jar?
Answers
Suppose a city with population 340,000 has been growing at a rate of 4% per year. If this rate continues, find the population of this city in 20 years.
Answers
Answer:
Total population = 340000
Growing rate = 4%
Growing population = 340000×4/100
= 13600 per year
Now population increased in 20 years = 13600 × 20 = 272000 population.
Now ,
The population after 20 years = 340000+272000
=612000
So the population after 20 years = 612000
What is the quotient if
1/3 of 10 is divided by 1/7 of 8/12? Reduce if possible.
Answers
Answer:
2.75
Step-by-step explanation:
Write the equation of the circle with a center (5, -7) and radius = 7
Answers
Answer:
[tex](x-5)^{2} + (y+7)^{2} = 49[/tex]
Step-by-step explanation:
9514 1404 393
Answer:
(x -5)^2 +(y +7)^2 = 49
Step-by-step explanation:
The equation of the circle with center (h, k) and radius r is ...
(x -h)^2 +(y -k)^2 = r^2
Putting (h, k) = (5, -7) and r = 7 into this form, your equation is ...
(x -5)^2 +(y +7)^2 = 49
What is the value of y?
please hellpp!!!
Answers
Answer:
C=54°
Step-by-step explanation:
If u add each angle of a triangle should ways add up to 180°
Mario made this model to find the 3 digit number and a 1 digit number what multiplication sentence represents marios model
Answers
Answer:
Step-by-step explanation:
Ewww