Answer:

Step-by-step explanation:

Let's solve the first equation for either x or y. I'll do it for x.

Begin by subtracting 5y.

Now divide by 5.

Simplify:

Now substitute x in the second equation for this value.

Distribute;

Add 6

Combine like terms;

Divide by -10.

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Take this value of y and replace it in the first equation to find the value of x.

To find the lateral surface area of a pyramid, you can find the area of each triangle, A = 1/2bh or A = 1/2lw, then multiply by the number of triangles, which would be based on the number of sides of the base; or you can take half the perimeter and multiply by the slant height.
Use the given recursion and starting value of
to find
:

Do the same for
and
:


(That's not a mistake. This just tells you that the 2nd and 3rd iterates are very close together and have at least the same first 5 digits after the decimal.)
Answer: 2,000 milliliters.
Step-by-step explanation:
Hi, to answer this question we have to add the amount of water and the amount of sports drink that he drank:
1 liter + 1 liter = 2 liters of liquid.
Finally, we have to convert the result into milliliters.
Since 1 liter = 1000 liters
We have to multiply the liters drank by 1000.
2 x 1000 = 2,000 milliliters.
Feel free to ask for more if needed or if you did not understand something.