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madam [21]
3 years ago
11

The radio of circle X is three times the radius of circle Y. the sum of their areas is 40, then what is the radius of circle X

Mathematics
1 answer:
kaheart [24]3 years ago
4 0
I think the answer is 10 because 10 x 2 = 20 and 20 + 20 = 40
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The wholesale price of a TV is 55% less than the retail price. Therefore, the wholesale price is _____ times the retail price.
GenaCL600 [577]
Let x be the retail price of the TV
55% of x is 0.55x
Wholesale price = x - 0.55x
Wholesale price = x(1 - 0.55)
= 0.45x
The wholesale price is 0.45 times the retail price.
3 0
3 years ago
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In a year, there are 4 months that have 30 days. What is the ratio of the months with 30 days to the months with other than 30 d
Inessa05 [86]
In a year, there's a total of 12 months. So if 4 of them have 30 days, then the rest don't: 12 - 4 = 8 months. So 8 months out of 12 don't have 30 days, and 4 out of 12 have 30 days.
So the ratio of the months with 30 days to the months with other than 30 days is 4/8. To simplify your answer, you divide both sides by 2 and you get a ratio of 1/2.

All in all, the ratio is 1/2.

Hope this helps! :)
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Simplify 2a x a x 3a + b x 4b
loris [4]

Hello!

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2a\cdot a\cdot3a+b\cdot4b

Let's multiply and simplify it, look:

6a^3+4b^2

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7 0
1 year ago
Order from least to greatest.<br> 1/2, 1/8, 1/16, -0.6
babunello [35]

Answer:

->   -0.6, 1/16, 1/8, 1/2

Step-by-step explanation:

Since 0.6 is negative, that would be the most smallest value. All of the fractions have a numerator of one, so the bigger the denominator, the smaller the value of the fraction is.

6 0
3 years ago
The gradient of A(6,2) B(3,-3)
Anestetic [448]

Answer:

\sf  gradient: \dfrac{5}{3}

Explanation:

\sf slope/gradient: \dfrac{y_2 - y_1}{x_2- x_1} \ \  where \ (x_1 , \ y_1), ( x_2 , \ y_2) \ are \ points

Given points: A(6,2), B(3,-3)

\rightarrow \sf  slope: \dfrac{-3-2}{3-6}

\rightarrow \sf  slope: \dfrac{-5}{-3}

\rightarrow \sf  slope: \dfrac{5}{3}

7 0
2 years ago
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