2 groups of 10 tiles and 2 groups of 3 tiles. Which explains whether or not this model accurately shows 26 ÷ 2? It does because
26 = 20 + 6, and the model shows 2 groups of 10 and 2 groups of 3. It does because 26 = 20 + 6, and the model shows 2 groups of 10 and 2 groups of 6. It does not because 26 = 20 + 6, and the model should show 1 group of 26 and one group of 2. It does not because 26 = 20 + 6, and the model should show 2 groups of 20 and 2 groups of 6.
1 answer:
Answer:
It does because 26 = 20 + 6, and the model shows 2 groups of 10 and 2 groups of 3.
Step-by-step explanation:
Two groups of 10 make 20. Two groups of 3 make 6.
20 + 6 = 26
B is wrong. The model does not show two groups of 6.
C is wrong. The model should show one group of 6..
D is wrong. The model should show two groups of 10 and one group of 6.
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Answer:
The <em>z</em>-score for the group "25 to 34" is 0.37 and the <em>z</em>-score for the group "45 to 54" is 0.25.
Step-by-step explanation:
The data provided is as follows:
25 to 34 45 to 54
1329 2268
1906 1965
2426 1149
1826 1591
1239 1682
1514 1851
1937 1367
1454 2158
Compute the mean and standard deviation for the group "25 to 34" as follows:
Compute the <em>z</em>-score for the group "25 to 34" as follows:
Compute the mean and standard deviation for the group "45 to 54" as follows:
Compute the <em>z</em>-score for the group "45 to 54" as follows:
Thus, the <em>z</em>-score for the group "25 to 34" is 0.37 and the <em>z</em>-score for the group "45 to 54" is 0.25.