3 years ago

30 POINTS 5x-3y=-1 2x+3y=8 Solve with elimination! Show your work!

Mathematics

1 answer:

otez555 [7]3 years ago

6 0

Answer:

X=1, Y=2

Step-by-step explanation:

In the attached file

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if You flip an coin 200 times about how many times would you expect the coin to labd on tails what is the probality

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Answer:

50% or 1/2

Step-by-step explanation:

The chance of a coin landing on tails is always 50/50

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3 years ago

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Svetlanka [38]

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3 years ago

Sixty percent of the students at a certain school wear neither a ring nor a necklace. Twenty percent wear a ring and 30 percent

Reptile [31]

Answer:

0.4

Step-by-step explanation:

Given

60 % wear neither ring nor a necklace

20 % wear a ring

30 % wear necklace

This question can be Solved by using Venn diagram

If one person is choosen randomly among the given student the probability that this student is wearing a ring or necklace is

$P\left ( wear \ ring\ or \ necklace )+P\left ( neither\ ring\ or\ necklace)=1$

$P\left ( wear \ ring\ or\ necklace )=1-0.6=0.4$

The sum of probabilty is equal to 1 because it completes the set

Therefore the required probabilty is 0.4

7 0

3 years ago