Question

Rohan, Amber, and Sahara were discussing the following problem.



A submersible dives from the surface at 15 m/min for 6 min and then at 25 m/min for 20

min. What is the depth of the submersible after the dive?

They worked together to write the following expression to solve the problem.

6 × (-15) + 20 × (-25)

Then they evaluated the

expression independently.

Rohan evaluated the expression

as +1750.

Amber evaluated the

expression as -590.

Sahara evaluated the

expression as -750.

Explain how the expression represents the problem.

Which student evaluated the expression correctly? How do you know?

What errors did the other two students make?

What is the depth of the submersible after the dive?​

Answer 1

hhdhdg5yrhhtfuufhhryridururugy5oslywyyydykslyeeluykekwyw6k6lelyspdyp7d07dpufl7ek37kwyykwkwtw6od6pe6oe6le7lwkyeumw6ko73pe7p7ep7