The mean of: a, a, b is 30

the mean of a, a, b, b, b, is 20
find the values of a and b

a is 42.5

b is 5

Step-by-step explanation:

the mean of: a, a, b is 30

multiply 3 on both sides

the mean of a, a, b, b, b, is 20

multiply 5 on both sides

solve both equations simultaneously

subtract across. 2a-2a=0, b-3b= -2b, 90-100= -10

go back to one of the equations and substitute b=5 back in to find a

subtract 5 on both sides

divide 2

so a is 42.5 and b is 5

i think there was a typo. you wrote pat brings 3 quarts of ice-cream to the party. each serving of ice-cream is 1 6 quart. how many total servings of ice-cream does pat bring to the party? i think the bold is supposed to be 1/6. so 1 quart of ice cream = 6 servings. 6 * 3 = 18.

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.