The graph shows the speed of a vehicle during the final 50 seconds of a journey. At the start of the 50 seconds the speed is k metres per second.
The distance travelled during the 50 seconds is 1.7 kilometres.
a) Work out the average speed of
the vehicle during the 50 seconds.
Give your answer in m/s.
34 m/s
* Speed (m/s)
b) Work out the value of k.
10
40
50
20 30
Time (seconds)

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

Jeremy has 2 scooter 4 kites and 7 fishing poles.since jeremy is studying fractions at school he decided to describe his kites as a fraction value of the toys listed. what fraction did jeremy use to represent his kites