MATHEMATICS MIDDLE SCHOOL

Emma is 9 1/4 years old. How many MONTHS old is Emma?


Please Help!

Answers

Answer 1
Answer:

Answer:

Emma is 111 months old


Explanation:

We know that one year has 12 months:

Therefore:

9 years have 12*9 = 108 months

0.25 of a year = 0.25 * 12 = 3 months


Since Emma is 9.25 years old, therefore:

Emma is 108 + 3 = 111 months old


Hope this helps :)

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What's different with census and sample?

Answers

A census is a study of every unit, everyone or everything, in a population. It is known as a complete enumeration, which means a complete count. A sample is a subset of units in a population, selected to represent all units in a population of interest.
I know when you do a census, you cover the entire population but when you take a sample, you select a group from the population. There can be only one census but there can be many different samples from the same population. Hence, the latter results in sampling error (because it is just one aspect of the population)

Hope this helps have a nice day

Make 't' the subject of the formula: a=t/b -st

Answers


                                                 a  =  t/b  -  st

Factor 't' from the right side:        a  =  t (1/b  -  s)

Divide each side by (1/b - s):      a / (1/b - s)  =  t

Explain why it is necessary to rename 4 1/4 if you subtract 3/4 from it? Help please.

Answers

So we want to know why is it necessary to rename 4 1/4 if we subtract 3/4 from it. First, lets turn 4 1/4 into a fraction: 4 1/4 = 17/4. Now lets subtract 3/4 from it: 17/4 - 3/4 = 14/4. So 14/4 becomes 3 2/4. And now we see why is it necessary to rename 4 1/4.

What’s 10% of 70 I really need the answer plz help!!!!!

Answers

7

10% of 70 is 7

hope this help
7%, sorry for late respond but hope it helps :)<3!

What is the solution to the equation? 1 minus z/5=9 Answers: A. z = 50   B. z = 44   C. z = –2   D. z = – 40

Answers

1 - (z)/(5) = 9

add (z)/(5) to both sides.

1 = 9 + (z)/(5)

subtract 9 to both sides.

-8 = (z)/(5) 

multiply 5 to both sides.

-40 = z

Your answer is D) z = -40

Two friends take a bicycle trip. Ricky rides 10 miles in 0.75 an hour.Victoria rides 15 miles in 1.25 hour.Which bucylce rider has the slower rate?

Answers

Answer:

Victoria's speed, 12 mph, is slower

Step-by-step explanation:

Ricky's speed is

10 miles

---------------- = 13.33 mpg

0.75 hour

Victoria's is

15 miles

---------------- = 12 mpg

1.25 hour

Victoria's speed, 12 mph, is slower than Ricky's, 13.33 mph.
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