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kykrilka [37]
3 years ago
9

A students' choir contains 25 children and only 5 of them play the piano. If a 1 point

Mathematics
2 answers:
AnnyKZ [126]3 years ago
4 0

Answer:

20/25, 4/5, 0.8, 80%

Step-by-step explanation:

There is a total of 25 children, only 5 plays the piano.

The children out of the total who plays the piano is 5/25

The children out of the total who doesn't plays the piano is 20/25

20/25 = 4/5 = 0.8 = 20/25 = 80%

<h3><u><em></em></u></h3><h3><u><em>Hope this helps!!! </em></u></h3><h3><u><em>Please mark this as brainliest!!! </em></u></h3><h3><u><em>Thank You!!! </em></u></h3><h3><u><em>:) </em></u></h3>

gogolik [260]3 years ago
3 0

Answer:

0.8

Step-by-step explanation:

20÷25=4÷5=0.8

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3 years ago
An orchard has 651 orange trees. The number of rows exceeds the number of trees per row by 10. How many trees are there in a row
natima [27]

Answer:

The number of trees in each row is  21.

Step-by-step explanation:

Let us assume the number of trees in each row  = m

So, the number of rows in the orchard = Number of trees in each row + 10

or, total number of trees in each row = (10 +m)

Now, Total number of Trees = Number of Rows x Number of trees in 1 row

⇒ 651  = m (m + 10)

651 = m^2 + 10m\\\implies  m^2 + 10m - 651 =0\\or,   m^2 + 31m  21m - 651 =0\\or, m(m +31) -21(m+31) =0\\\implies (m +31) (m-21) = 0

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So, m =  21

Hence, the number of trees in each row is m = 21.

8 0
3 years ago
Audrey deposited $40,000 in a savings account with simple interest. Five years later, she had earned $30,000 in interest. What w
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Zigmanuir [339]

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3 years ago
WILL GIVE BRAINLIEST
podryga [215]

Answer:

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