MATh hw its urgent please help

satnam

New member
Joined
Apr 18, 2011
Messages
2
The variable d represents the cost of a customer's meal, in dollar. The following expression represents the amount paid, including tax.
d + 0.18d
F. The cost plus eighteen percent of the cost
G. the cost minus eighteen percent of the cost
H. the cost plus eight percent of the cost
J. The cost plus one hundred eighteen percent of the cost


I think the answer is F.

I really dont get this question
A merchant spend $92 to buy a calculator
then the merchant sold it with a 21% markup. Katherine used her calculator and found the amount of the markup to be $9.
Explain how you can use estimation to check the reasonableness of Katherine's
calculation


part B
Without doing calculation, tell whether or not Katherine's calculation is reasonable explain your answer

I really dont get this question can u help me
 

galactus

Super Moderator
Staff member
Joined
Sep 28, 2005
Messages
7,216
satnam said:
The variable d represents the cost of a customer's meal, in dollar. The following expression represents the amount paid, including tax.
d + 0.18d
F. The cost plus eighteen percent of the cost
G. the cost minus eighteen percent of the cost
H. the cost plus eight percent of the cost
J. The cost plus one hundred eighteen percent of the cost

I think the answer is F.
Yes.

I really dont get this question
A merchant spend $92 to buy a calculator
then the merchant sold it with a 21% markup. Katherine used her calculator and found the amount of the markup to be $9.
Explain how you can use estimation to check the reasonableness of Katherine's
calculation


part B
Without doing calculation, tell whether or not Katherine's calculation is reasonable explain your answer

I really dont get this question can u help me
How much is 21% of 92?. Is this $9?. More than $9?. Less than $9?.

Thus, is her calculation of $9 correct and reasonable?.
 
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