Question

Rama is stringing beads whose lengths are each 0.19 inches. How can rounding be used to estimate the length of a row of

9 beads?

1.Since the beads are about 0.20 inches, the length of a row of 9 beads will be approximately 9 + 0.20 = 9.20 inches.

2.Since the beads are about 0.10 inches, the length of a row of 9 beads will be approximately 9 +0.10 = 9.10 inches

3.Since the beads are about 0.10 inches, the length of a row of 9 beads will be approximately 9 x 0.10 = 0.80 inches.

4.Since the beads are about 0.20 inches, the length of a row of 9 beads will be approximately 9 x 0.20 = 1.80 inches.

Answer 1

option 4

Explanation:

because .19 rounds up to .20 and you have 9 rows, you would need 9 rows of .20 which meant that it would be .20×9=1.80