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Alex_Xolod [135]
2 years ago
8

Chad knows that 5 out of every 50 students at his school have blue eyes. There are 660 students at chads school. How many have b

lue eyes?
Mathematics
1 answer:
LuckyWell [14K]2 years ago
6 0

Answer:

66

Step-by-step explanation:

5=10% of 50

1/10 of the kids have blue eyes

660/10=66

Therefore 66 students at Chad's school have blue eyes.

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At 3:30 p.m., Berto’s train was 34 miles past the egg farm, traveling at an average speed of 85 miles per hour. At the same time
timurjin [86]

E=egg farm

x=distantce between  the Berto´s trains and the meeting point.

t=time where the trains meet up

⇒110 miles/h                                          ⇒85miles/h

[---------------------------E----------------------]-------------------------------------X

[............12 miles.......][........34 miles.....][------------ x ----------------------]

distance between Berto´s train and Eduardo´s train=

=12 miles+34 miles=46 miles.

S=d/t      ⇒d=S*t

S=seed

d=distance

T=time

Eduardo´s train;

46 miles+x=t*110 miles/h  ⇒x=t*110 miles/h-46 miles  (1)

Berto´s train;

x=t*85 miles/h  (2)

With the equations (1) and (2) we suggest this system equations:

x=t* 110 miles/h-46 miles

x=t*85 miles/h

we solve this system equiations :

t*110 miles/h-46 miles=t*85 miles/h

110t miles/h-85t miles/h=46 miles

25 t miles/h=46 miles

t=46 miles/25 miles/h=1,84 hour  (≈1 hour, 50 minutes, 24 seconds)

x=t*85 miles/h=156,4 miles

Solution: 1,84 hour

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3 years ago
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What is the best way to estimate the quotient of 7,713 divided by 18
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Answer:

Find the number which when divided by 35 gives the quotient 20 and remainder 18.

Step-by-step explanation:

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3 years ago
PLEASE HELP <br> I WILL MARK BRAINLIEST
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Answer:

False

Step-by-step explanation:

They don't look alike

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WARRIOR [948]
I believe the answer is 3. Because if you have a ratio that is 2:1 and Evan has 6 then it would be 6:x and so you just divide two? I hope that is correct! :)
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Tamara made 6 free throws out of 8 attempts. What percent of the free throws did she make? Complete the steps to answer the ques
dybincka [34]

Answer:

75%

Step-by-step explanation:

6/8=3/4=75%

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2 years ago
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