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Naddika [18.5K]
2 years ago
11

in the six grade 54% of the are boys. there are 189 boys in the sixth grade. what is the total number of the students in sixth g

rade
Mathematics
2 answers:
notka56 [123]2 years ago
6 0

<h2>189 boys is 54%</h2><h2>x is 46%(100-54)</h2><h2>Cross multiply:</h2><h2>189*46%=54%*x</h2><h2>86.94=0.54x</h2><h2>x=161</h2><h2>189 boys 161 girls</h2><h2>350 altogether</h2><h2>Hope this helps plz hit the crown :D</h2>
Otrada [13]2 years ago
3 0

Answer:

the total number of students in 6th grade would be 350

Step-by-step explanation:

I hope this helps! ^^

☁️☁️☁️☁️☁️☁️☁️☁️

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If Kevin wants a 90 average in math after 5 tests and his first 4 tests are 76, 92, 89 and 97 what does he need on the fifth tes
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You need to understand that you're solving for the average, which you already know: 90. Since you know the values of the first three exams, and you know what your final value needs to be, just set up the problem like you would any time you're averaging something.
Solving for the average is simple:
Add up all of the exam scores and divide that number by the number of exams you took.
(87 + 88 + 92) / 3 = your average if you didn't count that fourth exam.
Since you know you have that fourth exam, just substitute it into the total value as an unknown, X:
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Now you need to solve for X, the unknown:
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Now that you have an answer, ask yourself, "does it make sense?"
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3 years ago
Read 2 more answers
HELP DUE IN 5 MINUTES
Dafna1 [17]

Answer:

100C=m

Step-by-step explanation:

If 250 copies are made in 2.5 minutes, you get the equation:

250c=2.5m

divide by 2.5 on both sides and you get:

100c=m

So in m minutes, 100c copies are made.

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I hope this helps you

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