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Damm [24]
2 years ago
8

Helpppppp pleaseee .!

Mathematics
1 answer:
trasher [3.6K]2 years ago
6 0

Complementary angles equal 90 degrees.

The first two graphs angle a and b equal 90’degrees.

The first two are correct

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Ellie practices piano 2/3 h per day, several days each week. She practiced piano 32 2/3 hours during the summer. What equation c
SVEN [57.7K]

hello :)

so let me just give you the answer first:

2/3 * d = 32 2/3

here is why

so since the sentence said 2/3 PER day, then d (the number of days) multiplied by the time spent each day playing piano should give you how much time was spent in total over the certian number of days.

the 32 2/3 is just the amount of time ellie spent (as you have said)

so, this equation would be the correct one.

i hope this helped you out! please vote me for brainliest and have splendid day!

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3 years ago
The sphere weighs 4 pounds. sorry no picture but you can ask me for it in the comments What is the weight of the cylinder? What
Zolol [24]

Answer:

The weight is 4 pounds :D

Step-by-step explanation:

3 0
3 years ago
the length of one side of a square field is represented by the expression 3 - 7 x what is an expression for the perimeter of the
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4(3-7x). Since there are 4 sides in a square, you multiply one length by 4 to get the perimeter. 4(3-7x) simplifys to 12-28x.
3 0
3 years ago
Kalon and his friend Marna own a chimney sweep service company. Working together, they can clean a chimney in 1 5/7 hours. If it
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The amount of work done by Kalon in an hour is equal to 1/4. This is based on his time to finish the job. Letting x be the number of hours Marna can finish the job alone will let her finish 1/x of the job in an hour. If their rates are added together and multiplied by the number of hours they worked together, the product should be one whole job.
                          (1/4 + 1/x)(1 5/7) = 1
The value of x is 3. Therefore, it will take 3 hours for Marna to clean the chimney alone. 
6 0
3 years ago
Read 2 more answers
Prime factorization for 525 in expanded form
viktelen [127]
<span>The prime factorisation for 525 in expanded form could be calculated as follows: 5 into 525 = 105 5 into 105 = 21 21 = 3 x 7</span>
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3 years ago
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