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Nesterboy [21]
3 years ago
5

Seven of ten students polled say that they prefer to practice for a team sport after school than before school. Based on this sa

mple, how many students would you expect out of a population of 120 to prefer to practice after school?
70

36

84

77
Mathematics
2 answers:
Firlakuza [10]3 years ago
4 0

Answer:

Number of students who to prefer to practice after school are:

  84

Step-by-step explanation:

Seven of ten students polled say that they prefer to practice for a team sport after school than before school.

this implies that 7/10 part of the population prefer to practice for a team sport after school than before school.

Population of school=120

Hence, number of students who to prefer to practice after school are

             7×120/10

         =  84

Hence, 84 students prefer to practice after school

Jet001 [13]3 years ago
3 0
7/10 is 70%
70% of 120 is 84.

So 84 people would prefer to practice after school.
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Write an equation in slope-intercept form for the line that has a slope of -4/5 and passes through (0, 7).
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Answer:

A. y = -\frac{4}{5}x + 7

Step-by-step explanation:

Slope intercept form is y = mx + b where m is the slope and b is the y-intercept

<em>It gives us the slope, so we can plug that in:</em> y = -\frac{4}{5}x + b

<em>Next, it gives us a point, so we can plug in the x and y into our equation and solve for b when (x, y)</em>

y = -\frac{4}{5}x + b

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<em>Last, complete our equation:</em>

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