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
kap26 [50]
2 years ago
12

On a field trip a 6th grade class traveled 19.95 kilometer by train, 7 kilometer by bus and 2.3 kilometer by car. How far did th

ey travel all together
Mathematics
1 answer:
CaHeK987 [17]2 years ago
7 0
 19.95 + 7 + 2.3 = 29.25 kilometers
You might be interested in
Match each pair of equivalent fractions. 1 4. 1. 4/16 8 1 4/10 ni - 17 MI10 10 2 3. 3 12/18 5 4 4. 2. 16/20 6 NEXT QUESTION ASK
koban [17]

Answer:

You divide each fraction by the highest multiple.

4/16 can be divided by 4 to get 1/4

12/18 can be divided by 6 to get 2/3

4/10 can be divided by 2 to get 2/5

16/20 can be divided by 4 to get 4/5

Step-by-step explanation:

hope this helps

7 0
2 years ago
Find the area of a circle with radius, r = 1cm. Give your answer in terms of π .
natulia [17]

Answer:

A = 1cm*pi

Step-by-step explanation:

5 0
2 years ago
The coffee Lily likes is composed of 97.3% water and 2.7% cocoa. The coffee John likes is composed of 96% water and 4% cocoa. Ho
mestny [16]

30 ounces of the coffee John likes consists of

  • 0.96\cdot30=28.8 ounces of water
  • 0.04\cdot30=1.2 ounces of cocoa

To this mixture we're adding x ounces of water, so that the new mix has a total volume of 30+x ounces and matches the composition of the coffee Lily likes. This means it would consist of

  • 0.973\cdot(30+x)=28.8+x ounces of water
  • 0.027\cdot(30+x)=1.2 ounces of cocoa (same amount of cocoa as before because pure water is being added)

Solve for x:

0.973(30+x)=28.8+x\implies29.12+0.973x=28.8+x

\implies0.39=0.027x

\implies x\approx14.4

###

Just to confirm: the new mixture consists of

  • 28.8+14.4=43.2 ounces of water
  • 1.2+0=1.2 ounces of cocoa

giving a total volume of 43.2+1.2=44.4 ounces of coffee, and \dfrac{43.2}{44.4}\approx0.973, as required.

4 0
3 years ago
A researcher at a school of nursing decides to investigate the correlation between a pre- admission HESI examination, high schoo
Nataly_w [17]

Answer: D. Predictive validity

Step-by-step explanation: Predictive validity can be explained as a method of determining the degree or level of correctness of a prediction using pre-existing information or data and values obtained from the actual measurement.

In the scenario above, the researchers investigates the correlation or relationship between the predicted value obtained using a pre- admission HESI examination, high school GPA, and SAT scores and the actual grade received upon completion of the first year. This process is to analyze or determine the validity of our prediction.

4 0
3 years ago
Use mental math to solve the equation w - (-3) = 7 please help
tester [92]

w-(-3)=7

Pretend that there is a -1 in front of the bracket

w-1(-3)=7

Mutiply the bracket by -1

(-1)(-3)=3

w+3=7

Move +3 to the other side. Sign changes from +3 to -3.

w+3-3=7-3

w=4

Answer: w=4

8 0
3 years ago
Other questions:
  • What two factors of 30 have a sum of 11?
    15·2 answers
  • What is te value of f(2)
    6·2 answers
  • a 40 gram sample of a substance that's used for drug research has a k-value of 0.1446. find the substance's half life in days
    11·2 answers
  • Will the sum of the three even numbers be odd or even?
    7·1 answer
  • What is the pattern of the following sequence? 6, 11, 16, 21, . . .
    7·2 answers
  • Help me fast
    14·1 answer
  • A 5-pound bag of dog food costs $2.10. What is the unit price?<br> per pound<br> Submit
    11·1 answer
  • HELP I need this for a quiz the screenshot is there
    13·1 answer
  • An elevator starts at floor 5.It goes up 6 floors twice, and then it goes down 8 floors. A second elevator
    8·1 answer
  • Which one is correct<br> a<br> b<br> c<br> d
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!