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
iragen [17]
3 years ago
9

What number is 15% of 60

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
3 0

Turn percentage into a fraction.

15% = 0.15

Divide.

60 / 0.15 = 400

Hence, 15% of 60 is 400.

Hope This Helped! Good Luck!

You might be interested in
4. Use the diagram below to answer the question
ludmilkaskok [199]

Answer:

≈ 397 m

Step-by-step explanation:

Using Pythagoras' identity on the right triangle

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

Let h represent the height of the balloon above ground, then

h² + 50² = 400², that is

h² + 2500 = 160000 ( subtract 2500 from both sides )

h² = 157500 ( take the square root of both sides )

h ≈ 397 m ( to the nearest metre )

4 0
2 years ago
Consider a civilization broadcasting a signal with a power of 2.0×104 watts. The Arecibo radio telescope, which is about 300 met
Vitek1552 [10]

For light: Inverse Square Law 

<span>
The signal is weaken by the inverse square of the difference of distances this means that one over the square of the difference. </span>

<span>
</span>

Therefore, 70000LY / 141 LY =496.45 and that squared =246462.602 times less signal, or 1/246462.602.


 2 For a circular telescope like the Arecibo radio telescope that equals Pi times the radius squared. Sensitivity of the telescope depends on its area.<span>
The new telescope needs 246462.60 times that area to have enough sensitivity </span>

<span>
<span>(150 x 150 x Pi) = 70 685 sq m area for the Arecibo telescope and that times 246462.60
= 1.74212 x 10^10</span></span>

<span><span>
</span></span>

What is the diameter of a circle with that area?

 <span>
<span>1. Divide the area by Pi = 5.548156 x 10^9
2. Take the square root of the result to find the radius = 74485.94293</span></span>

3. Multiply by 2 to find the diameter = <span>148971.886</span>

7 0
2 years ago
Which statement is true based on the diagram?
Margarita [4]

Answer:

option B

Step-by-step explanation:

Triangle RST~ TRIANGLE RQP

6 0
2 years ago
Read 2 more answers
When a number decreased by 10% the result in 63. What is the number?
Ugo [173]
The number is 69.3 because percent means 0.01, so 10 x 0.01 = 1.1
so 1.1 x 63 = 69.3. you can also do 63 x 10% = 69.3.
4 0
3 years ago
Pls help me solve this problem!!
ddd [48]

Answer:

49.85

Step-by-step explanation:

41 is the mean, so half of the daily requests are above that number, half below, the question is about numbers above the mean, so the lower numbers won't be included in the percentage.

The difference between 59 and 41 is 18. The standard deviation given is 6.

18 ÷ 6 = 3  So that is 3 standard deviations. The empirical rule states that 99.7 of all values are within 3 standard deviations from the mean. But we are looking at only the upper half of those values so 99.7 ÷ 2 = 49.85 %

If the answer asks for approximate, you could round to 49.9 or 50.

And tell the math people to learn the correct spelling of fluorescent!

4 0
3 years ago
Other questions:
  • If 4x-3=7 then 4x=10
    6·1 answer
  • Simiplify.<br> U^2 - 4 / U^2 - 2u
    12·2 answers
  • What is the discriminant of 9x^2+2=10x^2
    15·1 answer
  • Convert (8,150°) to rectangular coordinates​
    5·1 answer
  • If x=0 and x=3 then 3 divided by 2x to the second power minus 2 divided by x to the second power minus 3x
    6·1 answer
  • Need help on 3 and 4 thx!
    7·1 answer
  • Factor the following expression X^2-9x+8
    10·1 answer
  • I really need help also if you could expalin it that would help alot!<br> ABC=DBC, AB=10 AC=7 DC=?
    15·2 answers
  • Express each percent as a fraction: <br><br><br> 86 2/3%
    9·1 answer
  • You have 12 liters of a juice blend that is 25% juice. How many liters of pure juice need to be added in order to make the blend
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!