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sergey [27]
3 years ago
5

13+x+195=13(x+15)...

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
6 0
First, let's expand the right side.  Now our equation is

13+x+195=13x+195

Now, we gather all the terms with x in it on the left side, and the numbers without x on the right.  We get:

-12x=-13

And then we can make this

12x=13

We divide both sides by 12 to get x on its own, so x = 13/12 or 1.08
Lina20 [59]3 years ago
4 0
<span>step 1 </span><span>Simplify:</span>x+208=13x+195
<span /><span>Step 2: Subtract 13x from both sides.</span>x+208−13x=13x+195−13x<span />−12x+208=195
<span /><span>Step 3: Subtract 208 from both sides.</span>−12x+208−208=195−208<span />−12x=−13<span /><span>S
Step 4: Divide both sides by -12.</span>−12x−12=−13−12<span />x=1312
<span /><span><u>
Answer:</u></span>x=13/12
<span />
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Doctor florens needs 25 g of salt for each student to do an experiment she has 1.2 kg of salt on hand she has a total of a 128 s
erik [133]
The first thing I would do is convert that 1.2 kilograms of salt to grams; that would ensure that all the units are the same so we can perform calculations on them.

1.2kg = 1200g


Next, I would find out how many students can do the experiment with 1200g of salt, by finding it how many 25g are in 1200g (by dividing them).

\frac{1200g}{25g}=48students


That means we still have 80 students left to provide salt for (128 - 48).
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