The unit rate of the 100m race is 2.12... m/s which you get by dividing the 100 meters by the 47 seconds. The unit rate for the 50m race is 2.08... m/s which you get by dividing the 50 meters by the 24 seconds. This means that the record for the 100m race is faster.
For this case, the first thing we must do is define variables. We have then: x: number of blue beads y: number of red beads We now write the inequations system: Answer: a system of linear inequations that represents the situation is:
You put the whole number on top of 1, it doesnt change its value. then you simplify across like in a butterfly only if needed then you multiply across from left to right.