Unit 3, Lesson 19 Quiz

Suki is trying to solve the equation 62.75 + x = 92.

Determine whether Suki could use each statement below to reason and solve the equations.

Choose True of Yes and False for no.

a. Suki can add 62.75 to both sides of the equation.

Sukid asks, "What number can be added to 62.75 to get 92?'

Suki thinks, "x is the difference between 92 and 62.75."

Suki can divide 92 by x to get the value equal to 62.75.

Suki knows that

62.75 + 0.25 - 63 and

63 + 29 - 92,

so x must be 29.25.

David and Ted are walking a trail. Ted walks 3.1 kilometers farther than David.

Part A:

Write and equation for the number of kilometers David walks, d, if Ted walks 5.4 kilometers.

Write an equation for the number of kilometers Ted walks, t, if David walkd 4.9 kilometers.

Fill in the blanks to tell the distance David and Ted walk.

If Ted walks 5.4 kilometers, then how many meters does David walk?

If David walks 4.9 kilometers, then how many meters does Ted walk?