f) Dailin is mowing lawns at $40 per hour to save for a new bike which is $670. He can save 65% of his lawn mowing money and his dad will give him $3 for every $2 he can save.How many hours will he need to mow lawns to save enough money for his bilke?
Q. f) Dailin is mowing lawns at $40 per hour to save for a new bike which is $670. He can save 65% of his lawn mowing money and his dad will give him $3 for every $2 he can save.How many hours will he need to mow lawns to save enough money for his bilke?
Define Variables: Let's define the variables:- Let x be the number of hours Dailin needs to mow lawns.- Dailin earns $40 per hour, so his total earnings will be $40x.- He can save 65% of his earnings, so his savings from mowing will be $40x×0.65.- His dad will give him $3 for every $2 he saves. This means for every $2 Dailin saves, he gets an additional $3 from his dad, making it a total of $5 for every $2 saved.- The cost of the new bike is $401.We need to find the value of x that will allow Dailin to save enough money to buy the bike.
Calculate Savings from Earnings: Calculate the amount Dailin saves from his earnings:Savings from earnings = 65% of total earningsSavings from earnings = 0.65×($)40xSavings from earnings = ($)26x
Calculate Additional Amount from Dad: Calculate the additional amount Dailin's dad will give him based on his savings:For every $2 saved, Dailin gets $3 from his dad.So, for $26 saved (which is 13 times $2), Dailin will get 13 times $3 from his dad.Additional amount from dad = 13×$3Additional amount from dad = $39x
Calculate Total Amount: Calculate the total amount Dailin will have after saving and receiving money from his dad:Total amount = Savings from earnings + Additional amount from dadTotal amount = $26x+$39xTotal amount = $65x
Set Up Equation: Set up the equation to find out how many hours Dailin needs to work to afford the bike:Total amount needed for the bike = $670$65x=$670
Solve for x: Solve for x to find out how many hours Dailin needs to mow lawns:$65x=$670x=$670/$65x=10.3076923077Since Dailin cannot work a fraction of an hour, we'll round up to the nearest whole hour.x=11 hours
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