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Vilka [71]
3 years ago
12

A bag contains 6 red marbles, 3 white marbles, and 7 blue marbles. you pick a marble without looking. find the probability of dr

awing a white marble
Mathematics
2 answers:
777dan777 [17]3 years ago
7 0
There's 13 other marbles (not including the white)
It depends how they want you to write it out. It could be 3/13
Or 3/16
babunello [35]3 years ago
4 0
The probably of drawing a white marble is 3/16
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To which set of numbers does -1/4 belong to?
inna [77]
Real numbers and rational numbers
7 0
3 years ago
Fatima earned 6 more than twice as many dollars as Noora. If Fatima earned 40 QR, how much did Noora earn?
-Dominant- [34]
86.
Fatima has 40
Nora has “6 + (40 x 2)”
6+(80) = 86
4 0
3 years ago
Solve the system using the substituion method<br> -4x+y=8<br> x-3y=9
lions [1.4K]
Hi there!

x - 3y = 9
x = 9 + 3y
 
-4x + y = 8
-4(9+3y) + y = 8
-36 - 12y + y = 8
-36 - 11y = 8
-11y = 44
-y = 4
y = -4

x - 3y = 9
x - 3(-4) = 9
x + 12 = 9
x = 21

So, your answers are y = -4 and x = 21.

Hope this helps!
3 0
3 years ago
It is estimated that approximately 10.5% of Americans are afflicted with diabetes. Suppose that a new diagnostic test is being c
Alla [95]

Answer:

0.03

Step-by-step explanation:

Percentage of americans with diabetes = 10.5% = 0.105

Percentage of americans without diabetes = 89.5% = 0.895

Adults over 40 with diabetes tested positive = 95% = 0.95

Adults over 40 with diabetes tested negative = 5% = 0.05

Adults over 40 without diabetes tested positive = 3.5% = 0.035

Adults over 40 without diabetes tested negative = 96.5% = 0.965

The probability of selecting an adult over 40 without diabetes but positive diagnosis;

     = 0.895 * 0.035

     = 0.031325

     = 0.03

5 0
3 years ago
Y = x+1
12345 [234]
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
(
−
2
,
−
1
)
(
-
2
,
-
1
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Equation Form:
x
=
−
2
,
y
=
−
1
8 0
3 years ago
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