Number of nickles=n number of dimes=d vance hase 3 more than 2 times niicles than dimes n=2d+3 each nickle is worth 5 cents and each dime is worth 10 cents so total worth=10d+5n cents we have the sentances 10d+5n=275 and n=2d+3 subsitute 2d+3 for n 5(2d+3)+10d=275 distribute 10d+15+10d=2.75 add like terms 20d+15=275 subtract 15 from both sides 20d=260 divdie both sides by 20 d=13 subsitute 2d+3=n 2(13)+3=n 26+3=n 29=n
275-15=260 260/2=130 130/10=13 so 13 dimes and 29 nickels
<span>My total is 275. Three nickels equal 15, so i remove it from the total, which makes it 260. 260 divided by two since you have twice as many nickels. 130. A dime has a value of 10, so 130/10, which equals 13. My ammount of nickels is twice the dimes (13) plus 3. 29 nickels.</span>
We translate Grayson's charges through the following mathematical expression : 35 h + 35 where h is the number of hours while that of Ian is 45h + 15. The number of hours where the charges are equal is 35h + 35 = 45h + 15; h = 2 hrs. Hence the number of hours minimum must be above 2 hours.
