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kompoz [17]
3 years ago
10

How to solve 2^x = 22.5?

Mathematics
2 answers:
Blababa [14]3 years ago
4 0
X=4.491853 is the answer
MatroZZZ [7]3 years ago
4 0
Take the ln of both sides
remember
ln(a^x)=xln(a)
so

ln(2^x)=ln(22.5)
xln(2)=ln(22.5)
divide both sides by ln2
x=ln(22.5)/ln(2)
if you want to evaluate
use calculator
x=4.49185
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Plugging values.

Total number of pounds of donuts = 3/5 + 3/4 + 2/3.

We need to add all those fractions.

In order to add fracions, we need to find common denominator (lcd).

We have 5,4 and 3 in denominators.

Least common denominator(lcd) of 5, 4 and 3 is 60.

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Multiplying first fracion by 12 in top and bottom, we get

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