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Daniel [21]
2 years ago
8

A small child makes 3 piles of blocks in a room. Each pile has 4 blocks. In another room, he makes 6 more piles of blocks. These

piles also have 4 blocks each. To count the total number of blocks, his sister counts that there are 3 times 4, or 12 blocks, in one room and 6 times 4, or 24 blocks, in the other room for a total of 36 blocks.
Using the distributive property, what is another way she could have counted the blocks?

·She could have added the number of piles before multiplying by 4.
·She could have found the number of blocks in 4 piles and added it to the number of blocks in 5 piles.
·She could have switched the order in which she added the 12 and 24.
·She could have counted each block separately.
Mathematics
1 answer:
julia-pushkina [17]2 years ago
3 0

Answer:

36

Step-by-step explanation:

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anyanavicka [17]

Answer:

75

Step-by-step explanation:

The measure of two supplementary angles =  15:21

The angles are  15x , 21x

15x + 21x = 180       {Supplementary}

         36x = 180

             x = 180/36

             x = 5

Smallest angle = 15 * 5 = 75

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3 years ago
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Answer:

No, it will not reach its goal.

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago
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Use set notation to write the members of the following set, or state that the set has no members. Odd numbers between 2 and 82 t
adell [148]

Let the set of all Odd multiples of 9 between 2 and 82 be denoted by D, then, using set-builder notation,

D=\{ 18n+9 \mid n \in \mathbb{N}, 0\le n\le 4 \}

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\{9,27,45,63,81\}

Each member of the set is a term of the arithmetic progression

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Putting these facts together, we get the result

D=\{ 18n+9 \mid n \in \mathbb{N}, 0\le n\le 4 \}

Learn more about set-builder notation here: brainly.com/question/17238769

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