Question

> Use the drop-down menus to explain how Ken' can use the model to find the total weight of the baseballs. Click the arrows to choose an answer from each menu. To represent the weight of one baseball, 0.3 pounds, Ken should shade 3 Choose... To represent the weight of all of the baseballs, he should shade this amount 7 times. The shaded part of the model will represent the expression Choose... The total weight of the baseballs is 2.1 pounds. > My Progress All rights reserved These materials, or any portion thereof may not be reproduced or shared in any manner without expS ENCOME

Answer 1

To represent 0.3 pounds Ken should shade 3 columns

To represent the weight of all of the baseballs He should shade 7 times

The shaded part of this model will represent the expression 7 x 0.3 (7x 0.3 = 2.1)

The Total weight of the baseballs is 2.1 pounds

1) Gathering the data

7 baseballs each one weighs 0.3 pounds

7 x 0.3 = 2.1 ⇔2.1 : 0.3 = 7

Each tiny square corresponds to 0.01 of the block.

2.1 : 0.3 = 7

2) So the total weight (2.1) corresponds to 2 blocks and 0.1 blocks mean 1 column on the third block. Or, 2.1 = 7 x 0.3 Seven times three columns.

Examining the options:

3 ) We can answer each drop-down menu:

• To represent 0.3 pounds Ken should shade ,3 columns

,

• To represent the weight of all of the baseballs He should shade ,7 ,times

,

• The shaded part of this model will represent the expression ,7 x 0.3 ,(7x 0.3 = 2.1)

,

• The Total weight of the baseballs is ,2.1 pounds