What’s the minimum value?

if a motercycle is moving at a constant speed down the highway of 40 km/hr, how long would it the motorcycle to travel 10 km

ahrayia [7]

Answer:

15 minutes

Step-by-step explanation:

First, the motorcycle goes at a speed of 40 km/hr.

The question asks for how long it would take to travel 10 km.

Well, there are 60 minutes in an hour, since we will be translating into minutes.

Also, 10 km is 1/4 of 40 km, so it would make sense that the time length would be 1/4 of an hour as well.

1/4 of 60 minutes is 15 minutes. So it takes 15 minutes for the motorcycle to travel 10 km.

Now, if all this wordy stuff is too much to comprehend, you can also solve using proportional relationships.

$\frac{40km}{60min}=\frac{10km}{xmin}$

Now cross multiply:

$40km*xmin=10km*60min\\40x=600$

Divide both sides by 40:

$\frac{40x}{40}=\frac{600}{40}\\x=15$

Again, this shows that it wouls take 15 minutes for the motorcycle to travel 10 km.

6 0

3 years ago

A soccer team is taking 16 people to a match in 4 cars. The owners of the cars drive their own cars, and each takes 3 other play

sesenic [268]

Answer:

12

Step-by-step explanation:

The numbers of choices for each of B, C, D are independent of the choices the predecessors have made. It is clear where the car's owners will sit, so all we have to care about is where we put the other people. There are 16−4=12 places left in the cars, so there are 12!

8 0

2 years ago

An accountant claims to be able to complete a standard tax return in under an hour. For a random sample of 24 tax returns, the a

anzhelika [568]

Answer:

The test statistic for the hypothesis test to check accountant's claim is 2.036.

Step-by-step explanation:

We are given that an accountant claims to be able to complete a standard tax return in under an hour. For a random sample of 24 tax returns, the accountant averaged 63.2 minutes.

Assume that the population standard deviation is equal to 7.7 minutes and the population is normally distributed.

Let $\mu$ = average time to complete a standard tax return.