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
Vlad1618 [11]
3 years ago
7

A school has 510 male students and 850 female students. If a student from the school is selected at random, what is the probabil

ity that the student would be a male?
- 0.5
- 1
- 0.375
- 0.625
Mathematics
1 answer:
Colt1911 [192]3 years ago
5 0

Answer:

0.375

Step-by-step explanation:

510 male out of a total of 1360

510/1360 = 0.375

You might be interested in
Elizabeth has 1.32 pounds of candy. She wants to share it equally with herself and 3 friends. How much candy will each person re
lana66690 [7]

Answer:

1/3 pound per person

Step-by-step explanation:

(All)    (People)   (Amount per person)

1.32  /  4          = .33                        

.33 = 1/3

5 0
3 years ago
How to find root hair
dimulka [17.4K]
I'll proceed by evaluating total length and surface area by scanned images. For measurements, I suggest to use winrhizo or any similar software. In this case the most important thing to think about is to use the appropiate acquisition parameters, I mean, to set a good resolution during scanning. Pixels of the aquired image should be smaller than root hairs diameter. Therefore, let me try to suggest you a good acquisition resolution. Making a quick research, it seems that hair root diameters range between 0,012 and 0,017 mm, so I suggest a resolution that will give a pixel dimension of 0,002 mm. Root hair diameters should be composed by 6-8 pixels, that is enough for winrhizo measurements. Resolution is measured in dpi, so in "dots/pixel per inch". A inch is 25,4 mm. We need pixels with a diameter of 0,002 mm, so in 25,4 mm we found 12700 pixels. That means 12700 dpi. It's a very high resolution, you need a good scanner and much space in your computer.
6 0
3 years ago
Negative three over eight ÷ five over nine
vesna_86 [32]

Answer:

-27/40

Step-by-step explanation:

5 0
3 years ago
Point K is on line JL. given JL =4x, JK= 2x+3, and KL=x, determine the numerical length of kl​
balandron [24]

Hi! I'm happy to help!

Our total line is JL (4x), and it is split into two parts: JK, and KL. We have our values, and we know that JK+KL=JL, so we can substitute our values and solve for x:

4x=(2x+3)+(x)

4x=3x+3

To solve for x, we have to isolate it on one side of the equation.

First, let's subtract 3x from both sides so that we can isolate x:

4x=3x+3

-3x -3x

x=3

<u>So, our x=3, which means that KL=3.</u>

I hope this was helpful, keep learning! :D

5 0
3 years ago
1. The scale of a map is 1 in = 19.5 mi map: ________ in actual: 9.5 mi 2. The scale of a map is 7 in = 16 mi map: 4.9 in actual
alexandr402 [8]
<span>We use ratio and proportion to solve each of these:
</span><span>
</span><span>1. The scale of a map is 1 in = 19.5 mi map: ________ in actual: 9.5 mi
</span><span>1 in / 19.5 mi = x in / 9.5 mi, x = 0.487 in
</span><span>
</span><span>2. The scale of a map is 7 in = 16 mi map: 4.9 in actual: ______ mi
</span><span>7 in / 16 mi = 4.9 in / x mi, x = 11.2 mi
</span><span>
</span><span>3. The scale factor for a model is 5 cm = ________ m Model : 72.5 cm actual: 165.3 m
</span><span>5 cm / x m = 72.5 cm / 165.3 m, x = 11.4 m
</span><span>
</span><span>4. The scale of a map is 1 in = 9.6 mi map: ________ in actual: 34.7 mi
</span><span>1 in / 9.6 mi = x in / 34.7 mi, x = 3.62 in
</span><span>
</span><span>5. The scale of a map is 1 ft = 9.6 mi map: ________ ft actual: 38.4 mi
</span><span>1 ft / 9.6 mi = x ft / 38.4 mi, x = 4 ft
</span><span>
</span><span>6. The scale factor for a model is 5 cm = ________ m Model : 22.4 cm actual: 155.2 m
</span><span>5 cm / x m = 22.4 cm / 155.2 m, x = 34.64 m
</span><span>
</span><span>7. The scale of a map is 5 in = 10 mi map: 8.7 in actual: ______ mi
</span><span>5 in / 10 mi = 8.7 in / x mi, x = 17.4 mi
</span><span>
</span><span>8. The scale of a map is 1 in = 13.5 mi map: ________ in actual: 65.9 mi
</span><span>1 in / 13.5 mi = x in / 65.9 mi, x = 4.88 in
</span><span>
</span><span>9. The scale factor for a model is 5 cm = ________ m Model : 61.5 cm actual: 143.2 m
</span><span>5 cm / x m = 61.5 / 143.2 m, x = 11.64 m
</span><span>
</span><span>10. The scale factor for a model is 5 cm = ________ m Model : 29.7 cm actual: 179.5 m
</span><span>5 cm / x m = 29.7 cm / 179.5 m, x = 30.22 m
</span>
3 0
3 years ago
Other questions:
  • Wade has claims that quadrilateral ABCD is a square because he has found that all four sides are congruent as shown below:
    6·1 answer
  • What is equivalebt to 6/12
    8·2 answers
  • Edward deposited $5,500 into a savings account 4 years ago. The interest rate is 5%. How much money did Edward earn in interest?
    13·1 answer
  • Marianne buys 16 bags of potting soil which come in 5/8 pound bags. This equals to 10 pounds of potting soil. Her father calls a
    7·1 answer
  • Forty-eight pens are packaged in 4 boxes. how many pens are packaged in 9 boxes
    15·1 answer
  • Express the confidence interval 0.866 ± 0.037 in open interval form (i.e., (0.155,0.855)).​
    11·1 answer
  • What is the next term of the geometric sequence?<br> 72, 36, 18,
    7·1 answer
  • Hilda adds 5 to a number, then multiplies the sum by negative 2. The result is 6. Write an equation to find the number, x.
    8·2 answers
  • help ASAP thanks,....
    11·1 answer
  • What is at least one more reason to use credit?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!