Answer:
Is there an option of 45
Step-by-step explanation:
x-15=30
so +15
x=45
Answer:
Step-by-step explanation:
Dividing 63.934g by 20g
=3.1962
You said that (xy) = 16, and (x+y) = 4 .
From the second equation you can get [ x = 4 - y ],
then substitude that for 'x' in the first equation, and
finally, rearrange the first equation to read
<u>x² - 4x + 16 = 0</u>
Don't even try to factor that quadratic equation. Go straight
to the quadratic formula, and the two solutions you find are ...
<em>x = 2 + i 2√3</em>
and
<em>x = 2 - i 2√3</em> .
Those are the two number that do what you want.
There are no <u>real</u> numbers that can do it.
The <u>cost</u> of his meal at a cafe is $36.00 and Cristofer wants to leave a <u>10% tip</u>. So to find what is his <u>total bill</u>, you have to <u>count 10% from</u> $36.00.
Note that
$36.00 -- 100%,
$x -- 10%.
Write aproportion:

Then

Therefore, the total bill consists of $36.00 for the meal and $3.60 tip:
$36.00 + $3.60 = $39.60.
Answer: $39.60