7. A racecar has a speed of 240 km/h. What is its speed in m/s?

Mathematics

1 answer:

uysha [10]3 years ago

6 0

Answer:

3.6.

Step-by-step explanation:

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Which is the best estimate of the product of the fractions? StartFraction 4 Over 7 EndFraction times StartFraction 8 Over 9 EndF

Lapatulllka [165]

Answer:

Product = $\dfrac{64}{135}$

Step-by-step explanation:

The expression is as follows :

$\dfrac{4}{7}\times \dfrac{8}{9}\times \dfrac{14}{15}$

We need to find the product of the above expression

As 7 × 2 = 14

So, it will become :

$4\times \dfrac{8}{9}\times \dfrac{2}{15}\\\\=\dfrac{4\times 8\times 2}{9\times 15}\\\\=\dfrac{64}{135}$

So, the product of the given fractions is $\dfrac{64}{135}$ .

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3 years ago

What is the reciprocal of 6 3/7?

77julia77 [94]

I believe your answer is going to be -6 7/3. Reciprocals are the opposites of a number, so I switched the sign on the 6 and made it -. When dealing with fractions, the reciprocal is essentially just flipping the numerator and denominator, which is how I got 7/3.

I hope I helped. Best of luck!

7 0

4 years ago

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10. On one night, a group of 9 rats carried away 45 kg of food. What is the reduced ratio of rats to food weight

GenaCL600 [577]

Answer:

Number of rats : Food weight = 1 : 5

Step-by-step explanation:

Number of rats in the group = 9

Weight of food carried away by them = 45 kg

Ratio of the number of rats and food weight = $\frac{\text{Number of rats}}{\text{Weight of food carried by the rats}}$