Kate's model is correct because 10 times the value of 4 rods, 10(4(10)), is 400. Mel's model represents 4(1)=4, which is incorrect. Kate's model represents 4*100=400, which is correct.
Hope I answered your question!

4 0

3 years ago

Solve 2x + 4 > 16 A. x > 10 B. x > 6 C. n < 6 D. x < 10

Alexandra [31]

Answer:

The answer is B ( X>6 )

Step-by-step explanation:

2x+4= 16

2x = 16 - 4

2x = 12

x = 12/2

x= 6

x>6

8 0

3 years ago

You have a bag of chocolate candy. Ten of them are red, 7 are brown, 12 are green, and 9 are blue. What is the probability that

Brrunno [24]

It would be $\frac{10}{38}$ , or, in simplest form, $\frac{5}{19}$ .

You get this by adding all the marbles to find the total number of marbles. 10+7+12+9, which equals 38.

You have 10 red marbles out of 38 total, so that is represented by $\frac{10}{38}$ !

5 0

3 years ago

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