Suppose there are 15 jelly beans in a box—4 red, 1 blue, 4 white, and 6 green. A jelly bean is selected at random. What is the probability that the jelly bean is red or blue? (Round your answer to the nearest whole number.) The probability that the jelly bean is red or blue is %.

33% chance

Step-by-step explanation:

Well first we have to create a fraction so we can convert to percent.

It wants us to figure out what the probability will be that a red or blue jelly bean is selected, so we need to add up the blue and red jelly beans.

=

Now we need to convert this to percent. Work:

5 ÷ 15 = 0.33333333333

0.33333333333 ÷ 10 = 0.33

0.33 = = 33%

Therefore there is a 33% chance that the jelly bean picked will be red or blue.

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)