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Gnoma [55]
3 years ago
10

6. Regroup the numbers in the following problems, putting the numbers that add up to 10 or a multiple of 10 in parentheses.

Mathematics
1 answer:
svetoff [14.1K]3 years ago
4 0

Answer:

a) (2+8)+9

b) (3+7)+5+4

c) (4+16)+2

d) (31+9)+4

Step-by-step explanation:

a) 2+9+8

2 and 8 add up to 10, so we regroup them in parentheses

(2+8)+9


b) 3 + 5 + 4 + 7

3 and 7 add up to 10, so we regroup them in parentheses

(3+7)+5+4


c) 4 + 2 + 16

4 and 16 add up to 20 which is a multiple of 10, so we regroup them in parentheses

(4+16)+2


d) 31 + 4 + 9

31 and 9 add up to 40 which is a multiple of 10, so we regroup them in parentheses

(31+9)+4

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Step-by-step explanation:

the greater sign will firstly be changed to = for better solving so we obtain

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Answer:

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Step-by-step explanation:

We are given the following information in the question:

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z_{score} = \displaystyle\frac{x-\mu}{\sigma}

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