4 years ago

The ratio of red cars to blue cars in a parking lot was 9 : 5. If there were 54 red cars, how many blue cars were there?

Mathematics

1 answer:

const2013 [10]4 years ago

6 0

Answer:

there is 30 blue cars.

Step-by-step explanation:

If you know that the 9 in the ratio is the red cars. You would do 54/9=6. Then to find the blue cars you would do 6*5=30 30 is your answer (big brain)

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Between which two consecutive integers does √53 lie?

GREYUIT [131]

Hey there :)

We can solve 2 ways: With a calculator and Without

With:
√53 = 7.28

Therefore this lies between 7 and 8

Without:
6² and 7² = 36 and 49
Still, the values are less than 53, which means √53 does not lie between 6 and 7

7² and 8² = 49 and 64
53 is between both values, therefore √53 lies between 7 and 8

Your answer will be option B) 7 and 8

8 0

3 years ago

Suppose that 0.10 of population is colourblind if 25of sample drown from this population find probability that at least 7 have c

Leokris [45]

Answer:

$P(X \geq 8)=22*10^{-4}$