Karen bakes cookies. she has observed that the number of cookies m that turn out well in each batch varies with the size of the batch and is given by the function f(x)= 2x-23 where c is the size of the batch (number of cookies in each batch). she never bakes fewer than 12 cookies in a batch. if the size of 5 batches is {20,25,26,27,34}, how many cookies turn out well in each batch?

f(x) = 2x – 23

f(20) = 2*20 - 23

f(20)) = 40 - 23 = 17  

17 cookies

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