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Anna35 [415]
3 years ago
10

Do the ratios 15 20 and 3 4 form a proportion?

Mathematics
1 answer:
aliya0001 [1]3 years ago
8 0

Answer:

Test the two ratios/fractions to see whether they are equivalent by multiplying diagonally (cross multiply). 3 4 = 15 20 4 * 15 = 60 and 3 * 20 = 60.

<em><u>This is a proportion. If the two numbers that are diagonal result in the same answer when they are multiplied, you are working with a proportion.</u></em>

Step-by-step explanation:

<h2>#BEBRAINLY </h2>
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Blake's pool can hold 2.539 gal of water when full. If it takes 9 hours to fill the empty pool. How much water will be in the po
Dovator [93]

Answer:

0.2821 gal

Step-by-step explanation:

Since this is a direct and proportional relationship, we know that the ratio for 2.539 gal of water to 9 hours is the same as the ratio from the water in the pool after 1 hour to 1 hour. Therefore, we can simplify 2.539:9 into 0.2821111... I’m not sure what value you must round to, so I’ll assume it is to the nearest thousandth. Hence, our answer is 0.2821 gal.

I hope this helps! :)

5 0
3 years ago
How would you find the values of x and y?
Ipatiy [6.2K]
If you havent learnt Sin, Cos yet, let me know, so we can try the other solutions.

6 0
3 years ago
Need help with this function problem
kotykmax [81]

Answer:

  see attached

Step-by-step explanation:

To find the inverse function, solve ...

  x = f(y)

  x = (y^7)/7 -4 . . . . . . . use the definition of f(x)

  x +4 = (y^7)/7 . . . . . . add 4

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The inverse function is the one shown in the attachment.

4 0
2 years ago
Evaluate f(x - 2) when f(x) = 4x² - 4x – 2
ivann1987 [24]

Answer:

Step-by-step explanation:

8 0
3 years ago
Using distributive property create an equivalent expression to 40+4x
evablogger [386]
Hi there!

To create an expression that uses the distribution property which can be simplified into 40 + 4x, we can find a factor between 40 and 4:

Since both 40 and 4 is divisible by 4,

40 / 4 = 10
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We can put the 4 on the outside of the parenthesis, and put the quotients inside the parenthesis. And since the expression is in addition, we should include the addition symbol as the operation inside the parenthesis. 

4(10 + x)
would be your answer. 

Hope this helps!
4 0
3 years ago
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