If eleven is added to the square of a number, the results is sixty. find all such numbers

x^2 + 11 = 60 {11 is added to the square of a number to get 60}  

x^2 = 49 {subtracted 11 from both sides}

x = 7 or -7 {took square root of both sides}  

the numbers are 7 and -7

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.