rebelfighter24ovin5h
12.09.2021 •
Mathematics
Find the value of y such that 9^y = 3^5 * 9^6 / 27^3. Explain how you solved this problem.
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Ответ:
• express in terms of 3:
• from law of indices:
• therefore, let's apply the laws:
• from third law of indices:
• apply the law:
Ответ:
Step-by-step explanation:
Ответ:
15 and 18
Step-by-step explanation:
Create a system of equations. Let x and y represent the numbers:
y = x + 3
x + y = 33
Solve by substitution, by plugging in the first equation into the second equation as y:
x + y = 33
x + (x + 3) = 33
2x + 3 = 33
2x = 30
x = 15
Find the other number by plugging in 15 as x into the first equation:
y = x + 3
y = 15 + 3
y = 18
So, the numbers are 15 and 18