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murzikaleks [220]
3 years ago
11

Sally’s dance school had 60 students last year. This year there are only 48 students enrolled. By what percent did the enrollmen

t decrease?
Mathematics
1 answer:
Morgarella [4.7K]3 years ago
8 0

Answer:

-20%

My brain is weird on how i figure it out but I divided 48 by 60 and got .80 so i just got the other whole to make it 1 so it is 20%. This is not the correct way to do this but this is how i got my answer.

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The number of bottles of soda purchased is 10 and the number of bottles of juice purchased is 4.

<u>Step-by-step explanation:</u>

Let us consider the soda bottles as x and juice bottles as y.

From the given data we can derive 2 equations,

35x+15y= 410.    .....(1)

x=y+6.                 ....(2)

Substitute equation (2) in (1),

35(y+6)+15y=410.

35y+ 210+15y=410.

50y+210=410.

50y=410-210.

50y=200.

y=4.

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x=4+6.

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4 0
3 years ago
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adoni [48]
X^2 + 5x = -2
x^2 + 5x + 2 = 0

x = -b (+-) sqrt (b^2 - 4ac) / 2a
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x = -5 (+-) sqrt (5^2 - 4(1)(2)) / 2(1)
x = -5 (+-) sqrt (25 - 8) / 2
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4 0
3 years ago
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vovikov84 [41]

Answer:

Y=-x

Step-by-step explanation:

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(-1)(-3)=3

3-3=0

S0,

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8 0
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Step-by-step explanation:

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How many blocks will give us our total, 30% of $500
Gennadij [26K]

Answer:

150

Step-by-step explanation:

30% of 500 is 150 :/

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3 years ago
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