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goldfiish [28.3K]
2 years ago
12

Daniel bought a bag of marbles at the school garage sale it contains five red marbles four yellow marbles five Green marbles and

to blue marbles marbles were all the same size and shape if Daniel reached into the bag and pulled out a marble without looking what is the probability it was not blue
Mathematics
1 answer:
Inessa [10]2 years ago
3 0

Answer:

Because blue has the least amount of marbles in there

Step-by-step explanation: Because Blue has 2 blue marbles which are smaller than any one of the rest of the marbles. Ur welcome

Mark as brainlyest?

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18. Determine the common difference, the fifth term, and the sum of the first 100 terms of the following sequence:
Ksenya-84 [330]

a_1=1,\ a_2=2.5,\ a_3=4,\ a_4=5.5,\ ...\\\\a_2-a_1=2.5-1=1.5\\a_3-a_2=4-2.5=1.5\\a_4-a_3=5.5-4=1.5\\a_{n+1}-a_n=1.5=constans\\\\\text{It's an arithmetic sequence with}\\a_1=1,\ \boxed{d=1.5}\\\\a_n=a_1+(n-1)d\to a_n=1+(n-1)(1.5)=1+1.5n-1.5\\\\a_n=1.5n-0.5\\\\a_5=1.5(5)-0.5=7.5-0.5=7\\\boxed{a_5=7}\\\\\text{The formula of a Sum of the First n Terms of an Arithmetric Sequence:}\\\\S_n=\dfrac{2a_1+(n-1)d}{2}\cdot n\\\\\text{We have:}\\a_1=1,\ d=1.5,\ n=100\\\\\text{Substitute}

S_{100}=\dfrac{(2)(1)+(100-1)(1.5)}{2}\cdot100=\dfrac{2+(99)(1.5)}{1}\cdot50\\\\=(2+148.5)\cdot50=150.5\cdot50=7,525\\\\\boxed{S_{100}=7,525}\\\\Answer:\\the\ common\ difference:\ d=1.5\\the\ fifth\ term:\ a_5=7\\the\ sum\ of\ first\ 100\ terms:\ S_{100}=7,525

8 0
3 years ago
Simplify expression 3(d+5)
steposvetlana [31]

Answer:

your answer would be 21

~hope this is the right answer, have a great day/night~

Step-by-step explanation:

6 0
3 years ago
What is the recursive formula for -7,-1,5,11
Lostsunrise [7]
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The common difference is 6.
If you add 6 to a term, you get the next term.

a_0 = -7

a_n = a_{n - 1} + 6
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3 years ago
The prism below is made of cubes which measure of a foot on one side. What is the volume of the prism?
timurjin [86]
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There Are 8 Cubes In A Prism.
ThereFore, The Volume Of The Prism Is 8(1/27) = 8/27 Cubic Centimeters.

Hope This Helps!
5 0
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