The answer is:
(x-5 - sq root 29) (x-5 + sq root 29)
Lets find how many boys there are.
First we add the ratios:
7 + 5 = 12
Then we divide the total number of students by this:
240 / 12 = 20
Now to find out how many boys there are, we times this by the ratio of boys:
20 x 5 = 100
Finally we divide the number boys, by the total number of students. We then times this number 100 to change it from a decimal to a percentage.
100 / 240 = 0.41666 (Multiply this by 100 to get the percentage)
0.41666 x 100 = 41.67%
76% would be your test score
Answer:
7 hrs
Step-by-step explanation:
formula :- speed=distance/time
speed= 96kph
distance= 672 km
time=?
S=D/T
96=672/T
(cross multiply)
96T = 672
T = 672/96
T = 7 hrs