The price of a car was decreased by 10% to £729. what was the price before the decrease?

810

Step-by-step explanation:

90/100=729/x

100×729= 90x

72900=90x

810 = x

£810

Step-by-step explanation:

100% - 10% = 90%

£729 is 90 % after the price was decreased by 10%. Therefore, Divide £729 by 90% to get the original price.

£729/90% = £810

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950