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wel
3 years ago
7

A math class is made up of 16 boys; the rest are girls. Sixty percent of the class is boys. How many students are in the math cl

ass?
Mathematics
1 answer:
mr Goodwill [35]3 years ago
7 0
26

16/60 = x/40
16*40= x*60
640=x*60
10.6=x

Since x represents the # of girls and you can't have .6 of a person, you'll have 10 girls.

10+16 = 26
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aleksandrvk [35]

Answer:

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Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
3/7 of 8th graders play sports. is 3/5 of the 8th graders that play sports are boys, what fraction of the 8th graders are boys
Svetach [21]

Answer:

\dfrac{9}{35} is the fraction of 8th graders who are boys.

Step-by-step explanation:

Let total number of 8th graders = x

Given that, \frac{3}{7} of 8th graders play sports

\Rightarrow 8th graders who play sports = \frac{3}{7} \times x

Also, Given that, \frac{3}{5} of 8th graders that play sports are boys

Number of 8th graders that play sports, and are boys = \frac{3}{5} \times \text{Number of 8th graders who play sports}

\Rightarrow \dfrac{3}{5} \times \dfrac{3}{7} \times x\\\Rightarrow \dfrac{9}{35} \times x

Hence, the answer is:

\dfrac{9}{35} is the fraction of 8th graders who are boys.

6 0
2 years ago
A survey of 120 twelfth-graders finds that 36% were carrying more than $15 on the day of the survey. Use the margin of error to
-Dominant- [34]

Answer:

An interval that will likely include the proportion of students in the population of twelfth-graders who carry more than $15 is 960

Step-by-step explanation:

For example, Condition 1: n(.05)≤N

• The sample size (10) is less than 5% of the population (millions of musicians), so

the condition is met.

• Condition 2: np(1-p)≥10

• =

2

10

= .2

• 1 − = 10 .2 1 − .2 = 1.6 . This is less than 10 so this condition is not

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It would not be practical to construct the confidence interval.

3 0
2 years ago
What is 37 divided by 6 in fraction form
kotegsom [21]

Answer:

\frac{37}{6}  thats the answer

7 0
3 years ago
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Kay [80]
There are an infinite number of them.
Here are a few:

2.1
2.2
2.3
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2.30000000000000006
2.5
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etc.

How to find them:

You probably never heard this before, but I'll bet
you'll remember it from now on:

<em>ANY number that you can write down on paper completely, </em><em>using digits
and a decimal point if you need it but no symbols, is a rational number.</em>

If you can write it down completely without any 'comments', then it's rational.
3 0
3 years ago
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