There is more than 1 answer and I already know 1 answer which is 3/4 but I don't know the rest. Please help!

Mathematics

1 answer:

andriy [413]2 years ago

3 0

Answer:

9/12

Step-by-step explanation:

3/4 times 3 = 9/12

3/4 is equivalent to 9/12 so those would be the two anwsers

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Students in a class were surveyed about the number of children in their families. The results of the survey are shown in the tab

ki77a [65]

Answer:

1/5

Step-by-step explanation:

Since the surveys are chosen with replacement (the first one is replaced before the second is chosen), the events are independent. This means that the probability of both together is the product of each event's probability.

The probability of choosing a survey that indicates 4 children in the family is 8/60, since there are 8 surveys with 4 children out of a total of (9+18+22+8+3) = 60 surveys.

The probability of choosing a survey that indicates 1 child is 9/60, since there are 9 surveys with 1 child out of a total of 60.

Together this gives us

8/60(9/60) = 72/360 = 1/5

3 0

4 years ago

Read 2 more answers

A tourist drives 70 miles along a scenic highway and then takes a 7-mile walk along a hiking trail. The average velocity driving

san4es73 [151]

Answer: $T=\frac{17}{x}$

Step-by-step explanation:

The formula we need to use is:

$time=\frac{distance}{velocity}$

We know that "T" is the total time for driving and hiking and "x" is the average velocity on the hike.

Knowing that the tourist drives 70 miles along the scenic highway and walk 7-mile walk along the hiking trail, and also knowing that the average velocity driving is 7 times that while hiking, we can conclude that the total time is:

$T=\frac{70}{7x}+\frac{7}{x}$