Tom and sami have two painting jobs but can only stop at the store once. the first job needs 1 4/5 gallons of paint. the second needs 12 1/3 gallons. how many gallon cans of paint should they buy?

Convert both to improper fractions

1 4/5 = (1*5 + 4)/5 = (5+4)/4 = 9/5

12 1/3 = (12*3 + 1)/3 = (36+1)/3 = 37/3

Find a common denominator - 15

9/5 = 27/15

37/3 = 185/15

Add them together

27/15 + 185/15 = 212/15

So 212/15 Gallons is needed.

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.

the radius is 2 times the diameter.

step-by-step explanation: