Answer:
3. x=9 4. =2/5 5.= 15 6.x=7 7.=12
Step-by-step explanation:
Answer:
4x
+
5
y
=
15
Step-by-step explanation:
It can be helpful to graph the system. The appropriate choice is ...
... (0, 2) and approximately (1.91, 0.09)
Such a system of equations has no algebraic solution. Some graphing calculators will identify the points of intersection of the graphs to full calculator precision. Others can help you iterate a solution, if you need better accuracy.
Total = 16 marbles
R = 4
B = 7
G = 5
a)
P(R) = 4/17
with replacing it P(B) = 7/17
so
P(R, then B) = 4/17 x 7/17 = 28/289
b)
P(R) = 4/17
no replacing, P(B) = 7/16
so
P(R, then B) = 4/17 x 6/17 = 24/289
c)
The answers to parts a and b are not the same.
Part a (28/289) with replacing, the probability to select a red then blue is higher then part b (24/289)
Answer:
655
Step-by-step explanation:
655-369=286
I hope this is correct and have a great day