Question

Jessica measures two line segments using a metric scale. The first line segment is 30 centimeters long. The second line segment is 500 millimeters long.
What is the total length, in centimeters, of the two line segments?

Question 2 options:
A. 35
B. 80
C. 530
D. 800

Answer 1

Answer:

B

Step-by-step explanation:

We need to convert millimeters to centimeters first:

We know,

10mm = 1 cm

Hence, 500 mm is $\frac{500}{10}=50$cm

First line (30cm) PLUS second line (50cm) = 30 + 50 = 80 cm

Answer choice B is right