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Answer:
Her answer is incorrect. She is better off writing the expression x + .06X as 6% is expressed as .06 as a decimal. Adding sales tax would mean taking the initial cost x and adding the tax of .06x to it for the total cost after taxes.
Step-by-step explanation:
John would have made $168 in 8 hours. I hope this helps
Hi! Plumber A - Base Rate = $35.00 and Hourly = $15.00
Plumber B - Base Rate = $40.00 and Hourly = $12.00
$35.00 + $15.00 + $15.00 = $65
$40.00 + 12.00 + $12.00 = $64
Plumber A become more expensive than Plumber B after two hours.
Answer:
There are 23 quarters and 37 dimes in the collection
Step-by-step explanation:
Let's name the two unknowns we need to find :
Q = number of quarters in the collection
D = number of dimes in the collection
So our first equation on the number of coins we have in the collection can be written as:
Q + D = 60
Now let's write an equation that takes care of the total value of the collection ($ 9.45), having in mind that each quarter is worth $ 0.25, and each dime is $ 0.10:
So let's solve this system of linear equations in "Q" and "D" by substitution. We use the first equation to solve for "d" for example, and then use this to substitute for D in the second equation:
Then, there are 23 quarters in the collection. We can find the number of dimes via the substitution equation we used: