Tom asked the 20 numbers of the football squad at his school how long they spend on the internet per evening. 7 of them spend over 4 hours per evening online. Tom used this information to estimate how many of the 1200 students are his school spend over 4 hours per evening on the internet. A) Assuming that Tom is good with numbers, What was his estimate? B) Write down one thing that could be to make the estimate more reliable

a) 420 students

b)Tom could have asked students that weren't on the football team too. He could have asked more students and from all different areas, not just football.

Step-by-step explanation:

Set up a proportion to solve for the unknown (x)

7/20 = x/1200 then cross multiply to solve for x.

8400=20x then divide by 20 on both sides

x=420

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: