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5x + 2y = -10 general line equation form is: y= mx + c so 2y = -10 - 5x y = -2.5x - 5 m refers to gradient and c is offset on the y axis so gradient is -2.5 (gradient means slope)
15
The mean of a set of numbers is the average. That is to say, all the numbers added together and divided by the number of the numbers. the answer is 30.5
10 + 10 + 10 + 5 + 5 +1 = 41.
10 X 10 = 100 You can do this four ways: You can do it mentally in your head or you can add them all up on paper by lining up the numbers correctly with each other. You can use a calculator and that is the easiest way. An alternate way is to multiply 10 by 10.