The linear function f(x) = 0 5 + 80 represents the average test score in your math class, where x is the number or the test taken. the linear function g(x) represents the average test scores in your science class, where x is the number of the test taken. x g(x)
1. 81
2. 83
3. 85

part a: determine the test average for your math class after completing test 2

part b: determine the test average after completing test 2

part c: which class had a higher average after competing test 4? show work to show support for your answer

Part A: The average is 81% in Math class after 2 tests.

Part B: The average is 83% in Science class after 2 tests.

Part C: Science had the higher average after completing for test 4.

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x