# Math

posted by Mica

Patrick plants 4 trees in his neigbor's yard. The shortest tree is 5.6 feet. The tallest tree is 11.2 feet. What is a reasonable total height of the trees that Patrick plants?

A. 25ft
B. 30ft
C. 45ft
D. 50ft

I got 33.6 so its B?

1. Ms. Sue

Right.

2. Mica

Chelsea is using 5 different recipes to bake 5 batches of brownies for a bake sale. The greatest amount of sugar needed for 1 recipe is 3 cups. The least amount of sugar needed for 1 recipe is 1.25 cups. Which is a reasonable amount of sugar Chelsea will use when baking the brownies?
A. Less than 3 cups
B. Between 3 and 5 cups
C. Between 5 and 8 cups
D. More than 8 cups

3. Ms. Sue

You can figure it out the same way as the last problem.

4. Mica

6.20 so C?

5. Ms. Sue

6. Mica

I added 1.25 and 3 and got 1.28
Then I multiplyed by 5. I don't know If i did it right or If I'm suppose to do that

7. Ms. Sue

1.25 + 3 = 4.25

4.25 / 2 = 2.125

2.125 * 5 = ?

8. Mica

Does / mean to divide and * mean to multiply?

9. Ms. Sue

Yes.

10. Mica

Dont I divide it with 5? so it would be 4.25/5?

11. Ms. Sue

No. You need the total amount of sugar for 5 batches of brownies.

Think about it. One recipe alone calls for 3 cups of sugar. Five recipes can't be less than 3 cups.

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