It belongs to the set of real numbers
and as it can be written as a fraction then it is also a rational number.
5/20 = 1/4. All the rest of the fractions reduce to 1/5.
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Add sides 5


Subtract sides 2x


Divide sides by 4


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CHECK :



Thus the solution is correct....
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We know that
if t<span>he temperature T of a given mass of gas varies inversely with its volume V
</span>then
T=k/V
Step 1
Find the value of k
for T=30º C and V=105 cm³
we have
T=k/V--------> k=T*V--------> k=30*105=3150 °C*cm³
therefore
for V=84 cm³
T=3150/84=37.5 °C
the answer is 37.5 °C
<h2>
Answer:</h2>
<u>Area</u> = 2(1/2 × 5 × 5) + 20 × 10
= 2 × 12.5 + 200
= 25 + 200
= 225ft².