Answer:
Kelvin’s error is that when he got the final result, that was the amount that was marked down. He still needed to find the price after the original price was marked down by that number wich in this case is $18.39. So using one of his steps, 30.65(0.6)=18.39. We can subtract 30.65 (original price) and 18.39 (mark down price). You’d get 11.26 dollars as the final price.
Answer:
D, 30 ft
Step-by-step explanation:
Answer:
Solve the following system for x and y:
{2 x + 53 = 53, 8 x + 3 = 42}
Check whether x and y are present in the given system:
Answer: The variable y is not present. Therefore its value cannot be determined.
Step-by-step explanation:
Use PEMDAS.
17-(6×10÷2)+12
6×10=60 divide by 2 to get 30
now: 17-30+12
17-30=-13
-13+12=-1
The answer is would be 67.5
