Question

Question 4(Multiple Choice Worth 2 points)

(Two-Column Tables MC)

A teacher gives pens and pencils to elementary students at an equal rate.


Pencils Pens
18 72
29 A
35 140
B 168


Determine the missing value for the letter B.
38
42
63
70

Answer 1

To determine the missing value for the letter B, we need to consider that the teacher gives pens and pencils to elementary students at an equal rate. This means that the ratio of pencils to pens should be the same in each row of the table.

We can set up a proportion to solve for the missing value:

pencils/pens = pencils/pens

Using the values in the table, we get:

18/72 = 35/140

Simplifying each side, we get:

0.25 = 0.25

This is true, so we can use the same proportion to solve for the missing value:

29/B = 35/140

Cross-multiplying, we get:

35B = 4060

Dividing both sides by 35, we get:

B = 116

Therefore, the missing value for the letter B is 116, and the answer is not listed among the options.