Please help me! (this is from khan academy 6th grade math!)

Mathematics

1 answer:

Svetach [21]1 year ago

8 0

Answer:

1st → 1st

2nd → 3rd

3rd → 2nd

Step-by-step explanation:

just divide the first set of student wishes to the second set of students in the same question. the 1st for example

x-ray to all students is 6/ 36= 1/6 = 1:6

for all students, you add all the students in the table

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A rocket travels 2.8x10^4 km h^-1. find how far it travels in 5 hours

mixas84 [53]

It is given in the question that, a rocket travels 2.8x10^4 km h^-1.

It means in one hour, the rocket travels

$2.8* 10^4km.$

And we have to find how much the rocket travels in 5 hours, and for that we have to do multiplication, that is

$2.8*10^4 *5 = 14*10^4 = 1.4* 10^5 km$

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3 years ago

If the class contains 11 boys and 14 girls, what is the probability of calling on a girl?

Ronch [10]

Answer: P (girl) = 14 / 25

Concept:

Here, we need to know the idea of probability.

Probability is a measure of the likelihood of an event to occur.

If you are still confused, please refer to the attachment below for a graphical explanation.

Solve:

Number of boys = 11

Number of girls = 14