Math (Connexus 6th)Unit 6

Identify an equation that models the situation and find its solution.

Kane planned to build a 53-centimeter-tall model of a building. He later decided to increase the model's height to 159 centimeters. What was the increase of the model’s height in centimeters?

A.x – 53 = 159
x = 212

B.53 + x = 159
x = 106

C.53 + x = 159
x = 102

D.x – 53 = 159
x = 53

1. Steve

what is the increase going from 9 to 12?

use the same logic here.

I am having trouble Steve can you explain it a little bit more

3. Damon

Draw a sketch of it !

4. Steve

9+x = 12
x = 12-9

same thing, different numbers.

I think that it will be either B or C

6. Damon

*=== 159
*
* how much here ?
*
*
*=== 53
*
*===ground = 0

8. Damon

yes, 53 + 106 = 159

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