Jamal walked 7
10
of a mile on Monday. He walked
9
40
of a mile on Tuesday. Jamal estimated how much farther he walked on Monday than on Tuesday as shown below.

Step 1
7
10
is close to
1
2

Step 2
9
40
is close to
1
5

Step 3
1
2
−
1
5
=
3
10
Which statement best explains whether or not
3
10
is a reasonable estimate for the difference?

question:

could we have options?

6hryt%4578855

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.