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Deffense [45]
3 years ago
12

A helicopter blade does 3206 full turns in 7 minutes. Work out the number of full turns per minute? Then work out how many turns

the 30 minute flight takes thereafter.
Mathematics
1 answer:
ANEK [815]3 years ago
6 0

Answer:

458 turns/min ----- 13740/30 min

Step-by-step explanation:

3206/7 (min) = 458

458 x 30 (min) = 13740

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On Earth, objects weigh 6 times what
Colt1911 [192]

Answer:

16 pounds.

Step-by-step explanation:

As you said, objects weigh 6 times more than what they weigh on the moon. Therefore, the robot originally weighing 96 pounds will be reduced to 16 pounds.

16*6=96. (Original Weight)

96/6=16. (Weight after being on the moon.)

4 0
4 years ago
What is proportional reasoning and how does it help you solve percent equations?
nata0808 [166]

Answer:

We can't set up a proportion to solve for x in a percent equation. For example,   34/100=5/x

Step-by-step explanation:

6 0
3 years ago
The quotient of a number and 14 is 8. Find the number.​
mafiozo [28]

Answer:

The number is 112

Step-by-step explanation:

Let the number be 'x'

\sf \dfrac{x}{14}=8\\\\\text{Multiply both sides by 14}\\\\ \dfrac{x}{14}*14=8*14\\\\

<h3>          x  = 112</h3>
5 0
3 years ago
Read 2 more answers
HELP!!! Is this a function or not a function<br> Why or why not
defon

Answer:

Yes, it is a function

Step-by-step explanation:

anytime you want to test to see if the graph is a function, perform a vertical line test.

Basically if you drew a vertical line and the vertical line crosses the graph at only one point that means the graph is a function.

If it crosses on more than one point the graph is not a function.

6 0
2 years ago
A plot of land doubles in size by adding x meters to the length and x meters to the width of the land. If the orgininal plot had
stellarik [79]
Hey :)

The answer is 100.
The overall area will be the length times the width:
200 times 300 = 60000.
If the plot of land doubles in size, then the resulting area will be 120000. To get to 120000, the question is saying that the same number was added to both 200 and 300, which were then multiplied together. The equation will look like this:
(x+200) times (x+300) = 120000
Now, you will multiply these together in a process called FOIL (which means you multiply the first numbers in each parentheses, then the outside numbers, then the inside numbers, then the last numbers):
x^2 (this means x squared, or x times itself) + 300x + 200x + 600 = 120000
Then, you will add together like terms:
x^2 + 500x + 600 = 120000
Next, you will subtract 120000 from both sides to get 0 on one side of the equation:
x^2 + 500x - 6000 = 0
Next, you will essentially perform the opposite of FOIL (now you're trying to get the right side of the equation into two parentheses):
(x + 600) times (x - 100) = 0  (you can check if this is correct by performing FOIL and making sure that product is the previous equation)
Now, set both of the parentheses equal to 0 and solve:
x + 600 = 0 ----> x = -600x - 100 = 0 ----> x = 100
Lastly, you will have to choose which value for x satisfies the initial question. Since the question is asking for a value within the real world, a negative answer will not work (you cannot give someone -600 meters of land). So, the answer is 100.

Hope this helps! :)
3 0
3 years ago
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