Question

Greg can't remember how tall his 9-month-old niece is. He guesses that she is 100 cm tall. Which of the following is true?
A.Based on the data, Greg's guess is not reasonable.

B.Based on the data, Greg's niece should be around 76.1 cm tall.

C.Based on the data, Greg's guess is reasonable.

D.Based on the data, Greg's niece should be around 61.1 cm tall.

Answer 1

Age (months)

Height (cm)

3 61.1
6 67.8
9 72.3
12 76.1

Answer 2

@mathmale

Answer 3

1 inch = 2.54 cm

Make a conversion factor out of this and then convert 100 cm to inches.

How tall is this 9 month old child, approx., based upon that 100 cm estimate?

Answer 4

900

Answer 5

so we have a 9-month-old child who is 900 inches tall? That's about 75 feet. I'd be pretty scared of a 75-foot-tall 9-month-old child.

Answer 6

If: 1 inch = 2.54 cm, then \[\frac{ 1 inch }{ 2.54cm }=1\] or

\[\frac{ 2.54 cm }{ 1 inch}=1\]

Answer 7

which one of these conversion factors should you use to convert 100 cm to inches?

Answer 8

2.54cm1inch=1

Answer 9

Not quite. Use the other one.

Type out 100 cm. and then multiply that by the other conversion factor. This will elilminate "cm".

Answer 10

OK

Answer 11

Let's take a different approach. Look at the table. The typical height of a 9-month-old baby is what?

Use that info to choose the best answer.

Answer 12

NEVER MIND I GOT IT

Answer 13

THANKS TO