If an hour is x, you make 5x dollars at bob's burgers and 8.5x dollars at sammy's. As 49.5 and 25 are base values, we get 49.5+5x=25+8.5x. Subtracting 5x and 25 from both sides, we get 24.5=3.5x and dividing by 3, we get 24.5/3.5=x=7 hours
Answer:
The division rule of equality tells you that dividing both sides of the equation by the same (non-zero) number does not change the validity of the equation.
Step-by-step explanation:
The equation can be divided by the coefficient of the log function without changing the value of the log function or its argument. Here, that means it is legitimate to divide both sides by 0.65. The result is approximately ...
9.3076923 = log(0.39)
Unless your problem statement tells you to round the number on the left side of this equation, you should maintain its full precision until you have the final answer to the problem at hand. Most useful scientific or graphing calculators will maintain 8 to 12 digit precision; a good one keeps 32 digits or more.
___
<em>Comment on the equation</em>
Of course, this logarithm must be to some base other than 10. We can write the logarithm as a log base "b" and solve for that base. Here, we'll use your value of 9.31 as a stand-in for the full-precision number, just so we don't have to write so many digits. We'll use the full-precision value in the final calculation.
Your log equation is only true if the base of the logarithm is about 0.90378430.
Answer:
Ratio [Pam to her brother] = 2:5
Step-by-step explanation:
Given:
Pam saves every two dollar
Her brother saves fives dollar (For every two dollar)
Find:
Ratio [Pam saving and his brothers saving]
Computation:
It is given that if Pam saves $2 her brother saves $5
So,
Ratio [Pam to her brother] = 2/5
Ratio [Pam to her brother] = 2:5