Answer:
x = 4/3
y = 1/3
Step-by-step explanation:
System of equations! This is set up really well to make the second equation equal x then substitute.
x - y = 1
x = 1 + y
and then our substitution:
2 (1+y) + y = 3
and solve:
2 + 2y + y = 3
3y + 2 = 3
3y = 1
y = 1/3
And now we can substitute that value into one of our equations:
x - (1/3) = 1
x = 4/3
Next we should check by substituting these values into both of our equations:
2 (4/3) + (1/3) = 3
9 / 3 does equal 3 !
(4/3) - (1/3) does equal 1 !
Therefore, x = 4/3 , and y = 1/3
Given that 4 people would not <span>go to a park or a beach or a cottage.
Number of people that will </span><span>go to neither a park nor a cottage but will go to a beach = 5 - 4 = 1.
</span><span>Number of people that will <span>go to neither a beach nor a cottage but will go to a park = 9 - 4 = 5
</span></span>
<span>Number of people that will <span>go to neither a park nor a beach but will go to a cottage = 8 - 4 = 4
</span></span>
Number of people that will not go to a cottage but will go to a beach or a park = 12 - 5 - 1 = 6
Number of people that will not go to a beach but will go to a cottage or a park = 10 - 5 - 4 = 1
Number of people that will not go to a park but will go to a beach or a cottage = 12 - 4 - 1 = 7
Number of people <span>willing to go to all three places = 5
Therefore, total number of colleagues = 4 + 1 + 5 + 4 + 6 + 1 + 7 + 5 = 33
</span>
Answer:
Step-by-step explanation:
i think its 6
Answer:
4/13
Step-by-step explanation:
Total number of marbles = 2+4+6+1=13
number of yellow = 4
yellow marble/total Number of marbles =4/13
