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Alchen [17]
4 years ago
12

Solving quadratics

Mathematics
1 answer:
jeka57 [31]4 years ago
7 0
The answer to this equation is 3
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A colony of 100 bacteria doubles in size every 60 hours. What will the population be 180 hours from now?
yulyashka [42]

Answer:

600

Step-by-step explanation: 100\times2\times\frac{180}{60}

<u><em>Cross out the common factor</em></u>

<u><em /></u>100\times2\times3

<u><em>Calculate the product or quotient</em></u>

<u><em /></u>200\times3
600\ YOUR\ ANSWER\ which\ can\ also\ be\ written\ as\ 6\times{10}^2\

<em>I hope this helps you</em>

<em>:)</em>

4 0
2 years ago
I REALLY NEED HELP ON THIS, PLEASE!!!!
Reika [66]
1. 2d+3

2.
n\cdot 7\\&#10;7n
6 0
3 years ago
What is the sum of 3 consecutive integers of 87
Leviafan [203]
Hey there! Hello!

So, to set this problem up, all you need to do is imagine that the smallest number of these consecutive integers is x. The next two numbers will be x+1, then x+2, and that, altogether, will equal 87. In a problem, this will look like this:

x+x+1+x+2=87

All we need to do is solve for x! We can simplify the problem by combining like terms:

x+x+x+1+2=3x+3=87
3x+3-3=87-3
3x/3=84/3
x=28

Now that we know what x is, we can plug it into our original problem:

x+x+1+x+2 = 28+29+30=87

Hope this helped you out! Feel free to ask me any additional questions if you need further clarification. :-)
3 0
3 years ago
A rectangular piece of metal is 30 in longer than it is wide. Squares with sides 6in long are cut from the four corners and the
aleksandrvk [35]
Check the picture below.

\bf V=3354~in^3\qquad \qquad 3354=6(w-12)(w+18)&#10;\\\\\\&#10;\cfrac{3354}{6}=w^2+6w-216\implies 559=w^2+6w-216&#10;\\\\\\&#10;0=w^2+6w-775\implies 0=(w+31)(w-25)\implies w=&#10;\begin{cases}&#10;-31\\&#10;\boxed{25}&#10;\end{cases}


since the width is just a dimension unit, it can't be -31.

what is the length?  well, the length is w + 30.

6 0
3 years ago
How many solutions are there for the system of equations shown on the graph?
Goryan [66]
Yes, it is Infinitely many solutions.

6 0
4 years ago
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