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Elza [17]
1 year ago
12

A random sample of students were surveyed as to how much non-school screen time

Mathematics
1 answer:
GaryK [48]1 year ago
3 0

The percentage of students who spend less than 4 hours a week on screens which reported a grade average below 80 is 50%

Given, we have the report representing children spending time online, on social media or watching T.V, which has there effect on there grades as above or below 80.

By the question we know that the number of students who spends less than 4 hours a week on screen is:

9 + 9

= 18

And among the 18 students there are 9 students whose grade average is below 80.

So the percentage of the students who spends 4 hours a week on screen is:

= 9 ÷ 18 × 100%

= 100/2

= 50%

hence 50% students spend less than 4 hours a week on screens.

Learn more about Percentage here:

brainly.com/question/843074

#SPJ1

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6 0
3 years ago
Tammy learns in science class that water freezes when its temperature is
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The required number line that shows all of the possible

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We are to select the number line that shows all of the possible temperatures. The required number line that shows all of the possible

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2 years ago
What is the value of z if z/4 = 12
Digiron [165]

Answer:

z = 48 :)

Step-by-step explanation:

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hope this helped!

5 0
3 years ago
Read 2 more answers
Whole-wheat bread costs $2.06/lb. How much would 3.8 lb of whole-wheat bread cost?
Xelga [282]
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So, we simply need to multiply the cost with the amount needed.

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($2.06) × (3.8)

Simplify.

$7.828

Round to the nearest tenths.

$7.83

So, 3.8 pounds of whole wheat bread costs $7.83

~Hope I helped!~


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3 years ago
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