Answer:
connecting complete Thoughts
-3x+y = -28
-x-6y = -3
~~~~~~~~~~~~~
Eliminate x:
-3x+y=-28
-x-6y=-3
~~~~~~~~~~~~~
-3x+y=-28
-3(-1)x-3(-6)y=(-3)(-3)
~~~~~~~~~~~~~
3x-1y=28
3x+18y=9
19y=-19
Therefore:
19y=-19
÷19 ÷19
y=
y=1
~~~~~~~~~~~~~
3x-1y=28
y=-1
~~~~~~~~~~~~~
3x-1(-1)=28
3x+1=28
-1 -1
3x=28-1
3x=27
÷3 ÷3
x=
↑ They cancel each other out
x=9
~~~~~~~~~~~~~
x=9
y=-1
Answer is: (9,-1)
Answer:
The correct answer is<u><em> B) multiple outbreaks of cholera</em></u>
Explanation:
Before the sewage crises, also known as the 'Big Stink', London had experienced over 3 outbreaks of Cholera. However, this not a contributing factor to the crises but actually a 'cause'
The rest of the options were in fact, contributing to the overburdened sewerage system. London's population had increased from just one million to over 3 million within a 100 years the infrastructure was old and failing.
Flushing toilets were introduced a couple of decades ago and significantly increased the amount of waste water handled by the sewerage system every day.