Kevin, since the problem states a number (x) minus 20, and given that 20 is mentioned later, it indicates that it is the second number involved here.
Let:
Lala represented as l
Polina represented as P
Goffy represented as G
The ratio for them is 6:5:3
Given that Polina's loudness measures 420 decibels, the total loudness can be computed as follows:
Total ratio=6+5+3=14
Thus, total loudness will be:
14/5×420
=1,176 decibels
8 = 4N - 2.8. Add 2.8, leading to 10.8 = 4N. Divide 4, giving the population of Nevada as 2.7 million.
To solve simple equations like this, it's essential to apply the order of operations defined by PEMDAS. This acronym represents the sequential operations needed for solving equations.
PEMDAS indicates Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.
According to PEMDAS, multiplication takes precedence over addition, leading us to:
5 + [1*10] = 5 + 10 = 15.
