### Home > CC3 > Chapter 7 > Lesson 7.2.5 > Problem 7-84

7-84.

Copy and complete each of the Diamond Problems below. The pattern used in the Diamond Problems is shown at right. Homework Help ✎ a.

b.

c.

d.

What are the product and sum of 2.4 and 1.5?

? (0.6) = 4.2

3.1 + ? = 11.1

Which two numbers have a product of -49 and a sum of 0?

Since the sum is 0, one number must be negative and one must be positive, but both numbers must have the same magnitude.