1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Reil [10]
3 years ago
10

Josie is training For a race. The ratio of the number of minutes She runs to the number of miles she runs in 20 to 3 she plans t

o run 10 miles. How many minutes will it take her
Mathematics
1 answer:
Hitman42 [59]3 years ago
8 0
It will take her about 67 minutes .. ( rounded )
You might be interested in
Sample size: A researcher is trying to decide how many people to survey. Which of the following sample sizes will result in a co
oksian1 [2.3K]

Answer:

Step-by-step explanation:

Given that a researcher is trying to decide how many people to survey.

We have confidence intervals are intervals with middle value as the mean and on either side margin of error.

Confidence interval = Mean ± Margin of error

Thus confidence interval width depends on margin of error.

Margin of error = Critical value *\frac{\sigma}{\sqrt{n} }

Thus for the same confidence level and std deviation we find margin of error is inversely proportional to square root of sample size.

Hence for small n we get wide intervals.

So if sample size = 300, the researcher will get wider confidence interval

4 0
4 years ago
Fill in the blank <br><br><br><br><br> …………………..
Mumz [18]
So uhh I’m so sorry to tell you but I don’t know how to do math myself and I just need points so I’m answering this.. but I’m sure If you just cheat off a smart person in your class you’ll be fine. If you need any tips on how to cheat lmk I’ll gladly help
6 0
2 years ago
Read 2 more answers
19-11+(-17)+(-19)+11​
Nitella [24]

19-11+(-17)+(-19)+11​

19-11-17-19+11

Do 19-11-17-19 then +11

19-11=8

8-17-19

8-17=-9

-9-19

=-28

-28+11

=-17

Answer: -17

5 0
3 years ago
Read 2 more answers
Pleaseeeeeeeee help me
wlad13 [49]
The answer is OH and IH
3 0
3 years ago
Read 2 more answers
A mixture contains five quarts of acid and water and is forty percent acid. If the mixture is to be weakened to thirty percent a
kirill115 [55]
In five quarts, we have 2 quarts of acid and 3 quarts of water
total = (2 + 3) = 5 quarts
concentration = 2 / 5

We want a 30% concentration
total volume = 2 + x
.30 = 2 / (2+x)
.6 + .30 x  = 2
.30x = 1.4
x = 4.66666 gallons of water
(or we need to add 1.666666 gallons of water)

Double Check:
acid concentration = 2 / (2 + 4.666666)
acid concentration = .30


4 0
3 years ago
Read 2 more answers
Other questions:
  • the sixth grade art students are making a mosaic using tiles in the shape of right triangles the each tile has a measures of 3 c
    10·1 answer
  • there are 6 pure spectral color : red,orange,yellow, green,blue, and violet. some animals cannot see orange or red. what fractio
    9·1 answer
  • Which rotation about its center will carry a regular decagon onto itself
    6·2 answers
  • The following parallel dotplots
    11·1 answer
  • I need this to be solved please!
    7·2 answers
  • draw a graph that models the relationship between time and Runners distance from the starting position use the data in the table
    15·1 answer
  • Could someone please help me? Will mark brainlist!
    5·2 answers
  • Which equation is graphed here?
    7·1 answer
  • (-7²)×(-2²) is equal to :<br>(a) 14<br>(b) -14<br>(c) 196<br>(d) -196​
    11·2 answers
  • A whole circle is 100 of a circle what percent of a circle is 1/7 of a circle
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!