There are only red counters and blue counters in a bag. Jim takes at random a counter from the bag.
The probability that the counter is red is 0.45
Jim puts the counter back in the bag.
Molly takes at random a counter from the bag.
She puts the counter back in the bag.
a) What is the p o ability that Jim and Molly take counters of different colours?
Give your answer as a decimal.
(2)
There are 81 red counters in the bag.
b) How many blue counters are there in the bag?
(2)
+
Total marks: 4

99

Step-by-step explanation:

For the second part of the answer

how is that middle school

step-by-step explanation:

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?