12 red + 16 blue + 18 white = 46 marbles
9. 3 marbles NO replacement: no white?
28/46 x 27/45 x 26/44
0.61 x 0.6 x 0.59 is about 22%
Each time we pick a red or blue we have one less to choose from next time
10. 4 marbles WITH replacement: all white?
18/46 x 18/46 x 18/46 x 18/46
0.39 x 0.39 x 0.39 x 0.39 is about 2%
11. 2 marbles NO replacement: red then blue
12/46 x 16/45
12 x 45 / 16 x 46
540/736
135/184 :)
Answer:
75% passed both subjects
Step-by-step explanation:
For this one you need to think with a Venn Diagram, check the picture attached!
Siplified 1.6y
-3
y=x + 5
A ( To check a system of equations by substitution, you plug your values for x and y into the original equations. If both simplified expressions are true then your answer is correct.
For example: To check if
(
2
,
−
3
)
was the correct solution for the system of equation:
y
=
−
x
−
5
,
substitute 2 for x and -3 for y into each equation
They intersect and the lines are the same as parallel. They share the same line as going x to y.
sorry if its a little bit scrambled (i did this last year)
thanks if you give branliest as well
Answer:
6.65
Step-by-step explanation:
7- 0.35 = 7.00- 0.35 = 6.65
The ratio is 34/8. You add all the numbers together and you get 34 then you have 8 red marbles so it would be 34/8