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3 years ago

Henry bought a magazine for $5 and two vitamin waters. Henry spent a total of $11. How much did each vitamin water cost? $

Mathematics

2 answers:

saveliy_v [14]3 years ago

5 0

5+x=11
-5 -5
----------
x=6

vodka [1.7K]3 years ago

5 0

The Vitamin Water cost 3.00$ each

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s2008m [1.1K]

Our goal here is to somehow "surgically remove" the repeating part of the number, so let's start by putting the original value in a variable and messing around with it a bit.

We'll let $x=7.\overline{6}$ . We want to cut the $0.\overline{6}$ bit off completely, so let's create the scalpel that'll let us do that. If $x=7.\overline{6}$ , then we can also say that $10x=76.\overline{6}$ . Maybe I was lying a bit: the $x$ is our real scalpel here, and $10x$ is where we'll be making the cut. Mathematically, a "cut" is almost always shorthand for subtraction, so let's see what our operation (cutting $x$ off of $10x$ ) leaves us with:

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andrew-mc [135]

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3 years ago

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2 years ago

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Answer:

2. Weather forecasts are difficult to trust

Step-by-step explanation:

Words like thus are preliminar to a conclusion, that is, we use words like thus when we are going to conclude something.

For Example:

The New Englard Patriots have won 6 Super Bowls. Thus, the New England Patriots are a good NFL franchise.

The conclusion is that the Patriots are a good NFL franchise.

In this problem, we have that:

Thus, it is difficult to trust weather forecasts.

The conclusion is:

2. Weather forecasts are difficult to trust

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3 years ago