The triangle has an only acute angle
From the given step function in this item above, we can see that the value of y in the given equation is dependent in the values of x but with certain step-wise arrangement. As we can see, for x = 1, the value of y is equal to 0. Thus, the answer is the first choice.
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.
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Answer:
96
Step-by-step explanation:
.25x + .125x + 24 = 60
.25x + .125x = .375x
.375x + 24 = 60
60 - 24 = 36
.375x = 36
36/ .375
x = 96
