Question

In a certain town, the wind speed, x, in km/h on a certain day is described by two statements:1.If 2 times the wind speed is increased by 2, the wind speed is still less than 46 km/h.
2.Twice the wind speed minus 27 is greater than 11 km/h.


Part A: Create a compound inequality to represent the wind speed range.


Part B: Can the wind speed in this town be 20 km/h? Justify your answer by solving the inequalities in Part A.

Part C: The average wind speed in another town is 23 km/h, but the actual wind speed is within 4 km/h of the average. Write and solve an inequality t

Answer 1

the wind speed = x
statement 1 : If 2 times the wind speed is increased by 2, the wind speed is still less than 46 km/h.
2x + 2 < 46

Answer 2

2.Twice the wind speed minus 27 is greater than 11 km/h.
2 x -27 > 11

Answer 3

2x < 44 so x< 22
2x > (11 + 27) so x > 38/2 = 19


combine the 2
19 < x < 22

Answer 4

wait combine the 2 ok am lost now

Answer 5

sorry already did Part B

Answer 6

Part A write the result of statement 1 and statement 2
Part B solve

Answer 7

do you see
2x + 2 < 46 and 2 x -27 > 11?

Answer 8

yes, ok thank u for ur help I think I got it now, thanks again but I have to get off the computer now,

Answer 9

Part B yes because x is in the range for the solution

Answer 10

ok