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:
3rd option
Step-by-step explanation:
There are three wholes and 1 fourth which is 1/8 simplified so first improper fraction, CHECK!
The three wholes are all equal to 12 then there is another 1 fourth so 12+1=13 CHECK TOO!!!
(YAY WE SOLVED IT!)
Answer:
2 and 3
Step-by-step explanation:
ndbndnsbsnndd ndnsnsnndndbdns. sbsnbdbdnsbbdbd
D 32% because 0.32 turns out to be 32%
As you know
sin = opp / hyp
cos<span> = </span><span>adj / hyp
tan = opp/adj
so
tan(Y) = </span>opp/adj = 8/15
cos (X) = adj / hyp = 8/17
tan(X) = opp/adj = 15/8
sin(Y) = opp / hyp = 8/17
cos(Y) = adj / hyp = 15/17
so answers
tan(Y) = opp/adj = 8/15
tan(X) = opp/adj = 15/8
sin(Y) = opp / hyp = 8/17
