Answer:
22
Step-by-step explanation:
The easiest way to do this is to multiply the number you got right by 1+ the percent you got wrong. In this case it would be 1+.18. If you multiply 18 by 1.18 you get 21.24. Because you cant have part of a question you need to round up. To check you can divide 18 by 22 and you get 81.81. I hope this helps!
Answer:
if the equation is f(x)=ax^2+bx+c
Step-by-step explanation:
Answer:
Step-by-step explanation:
z varies inversely
so z=a/x^2
9=a/(2/3)^2
9=a/(4/9)
9=9a/4
a=4
z=4/x^2
z=4/(5/4)^2
z=4/(25/16)
z=64/25
Answer:
2.10x+5=49
Step-by-step explanation:
2.10x represents how much she is paying per mile
The five represents the tip she gave the driver
49 represents the total amount she paid
With this information, you can create this equation to solve for the amount of miles.
Hope this helps!
