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
Ksivusya [100]
3 years ago
6

In the united states, 13 out of every 20 cans are recycled. what is the percent of cans are recycled

Mathematics
2 answers:
aleksandr82 [10.1K]3 years ago
8 0

you divide 13 by 20, so you get 0.65. Multiply that by 100 and you get 65%!

65% of cans are recycled.

ehidna [41]3 years ago
4 0

Answer:

65%

Step-by-step explanation:

100% is max

To get to 100% you need to multiply 20 x 5

Now you have 100 percent.

Last but not least you need to multiply 13 x 5

You get 65

65%

You might be interested in
The amount of soft drink in a bottle is a Normal random variable. Suppose that in 7% of the bottles containing this soft drink t
WITCHER [35]

Answer:

The mean is 15.93 ounces and the standard deviation is 0.29 ounces.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

7% of the bottles containing this soft drink there are less than 15.5 ounces

This means that when X = 15.5, Z has a pvalue of 0.07. So when X = 15.5, Z = -1.475.

Z = \frac{X - \mu}{\sigma}

-1.475 = \frac{15.5 - \mu}{\sigma}

15.5 - \mu = -1.475\sigma

\mu = 15.5 + 1.475\sigma

10% of them there are more than 16.3 ounces.

This means that when X = 16.3, Z has a pvalue of 1-0.1 = 0.9. So when X = 16.3, Z = 1.28.

Z = \frac{X - \mu}{\sigma}

1.28 = \frac{16.3 - \mu}{\sigma}

16.3 - \mu = 1.28\sigma

\mu = 16.3 – 1.28\sigma

From above

\mu = 15.5 + 1.475\sigma

So

15.5 + 1.475\sigma = 16.3 – 1.28\sigma

2.755\sigma = 0.8

\sigma = \frac{0.8}{2.755}

\sigma = 0.29

The mean is

\mu = 15.5 + 1.475\sigma = 15.5 + 1.475*0.29 = 15.93

The mean is 15.93 ounces and the standard deviation is 0.29 ounces.

6 0
2 years ago
What is a 3, 4, 5 triangle?
Alexandra [31]

Answer:

<em>A special right triangle is a right triangle with some regular feature that makes calculations on the triangle easier, or for which simple formulas exist. For example, a right triangle may have angles that form simple relationships, such as 45°–45°–90°. This is called an "angle-based" right triangle.</em>

Step-by-step explanation:

Hope this helps

Have a nice day :)

5 0
2 years ago
Read 2 more answers
What is the least common multiple of 8 and 18?<br> A<br> 16<br> B<br> 36<br> С<br> 72<br> D<br> 144
Verdich [7]

Answer:72

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
(01.04 LC)Multiply (-1/3)(1/4)
pashok25 [27]

Answer:

D: -1/12

Step-by-step explanation:

4 0
3 years ago
2x + 9 = 23 solve by trial
Allisa [31]

Answer:

i tried it by trial and error, and my work is below.

Step-by-step explanation:

2x + 9 = 23

subtract 9 from both sides

2x = 14

guess.... lol

x=7

8 0
3 years ago
Other questions:
  • Choose the graph below that correctly represents the equation 2x + 4y = 24.
    8·2 answers
  • A certain medicine is given in an amount proportional to a patient's body weight. Suppose a patient weighing 104 pounds requires
    13·1 answer
  • Add the two expressions. <br> −6m+10 and 9m−9 <br> Enter your answer in the box.
    6·1 answer
  • Jamel swam 92 meters in 4 minutes. Andre swam 105 meters in 5 minutes. Who is ther faster swimmer? Provide very clear evidence t
    5·1 answer
  • Here is a set of data 2.4 1.6 3.2 0.3 1.5 a. calculate the mean b. each new piece of data is now doubled, calculate the new mean
    14·2 answers
  • (3 3/8 – 1 1/5) + 1 7/8
    13·1 answer
  • I DON'T understand ​
    15·1 answer
  • Find an equation for the perpendicular bisector of the line segment whose endpoints
    6·1 answer
  • SHOW ALL WORK : A metal bar has a length of 5.0 cm, a width of 3.0 cm, and a height of 1.0 cm. What volume of water, measured in
    10·1 answer
  • Simplify each expression below.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!