3x+1y=6 2x-1y=-1 plz helpllllllllll
1 answer:
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Let's call the number we're looking for . We know that
is twice as much as
.
Twice as much as a number simply means the double of that number, and in turn the double of a number means to muliply that number by 2.
So, in order to obtain , you have to multply
by 2. In formula, you have
or simply
Answer:
Squirrel population is 440 squirrels.
Step-by-step explanation:
It is given that there are 22 squirrels are marked.
Later the company returned and counted a total of 220 squirrels of which are marked were 11.
So, we can set up proportional equation to find the squirrel population.
Let squirrel population is x.
We can set up proportional equation as
Cross multiply
11 x=4840
Divide both sides by 11
x=440
Best estimate is 440.