I'll start ya off...then see if you can find the answer
volume of a cone = 1/3 * pi r^2 h
you can calculate h with this since you are given all of the other parameters
then:
slant height of cone = sqrt (r^2 + h^2) (this is just applying the pythagorean theorem)
apples cost 2.35
oranges cost .45 x where x is the number of oranges
2.35 + .45 x = 7.75 solve for x the number of oranges.....
21 people represent 45.7 % of the total people surveyed....
.457 x == 21 solve for 'x'
....not really here (nor is it the purpose of this forum) to 'give you the answer' (though this time I did)...but rather to give you methods to solve the problem for YOURSELF.....so at least TRY !
x(3x-4) <= (6x^2-3x+5)/10
30x^2 -40x <= 6x^2 - 3x +5
24x^2-37x-5 <=0 this is a bowl shaped parabola with zeroes (via quadratic formula) at 1.64 and -.101
it is negative in between the zeroes..
.this includes the integers 0 and 1
foley has run 12 km and edith has run 16 km if edith had run 1/2 of the 16.... 8km foley would have only covered 6 km
edith will run the remaining 8 km foley will still have 6 km to go .
WHAT sphere?
you are welcome!
6s +3t = 79.50
3s +2t = 41 we are looking for shirt price so let's eliminate t's multiply second eq by -1.5
-4.5s -3t = -61.5 and add to the first equation
1.5 s = 18
s= $ 12
150/1700 x 100% = 8.82 %
150 is 8.82 % of 1700
750/1700 x 100% = 44.12%
750 is 44.12% of 1700
