210 divided by 30 is 7. 30*x=210
x=7
Answer:
Number of minutes Denzel still has to practice after x days, N(x) = 210 - 30x
Step-by-step explanation:
Denzel must practice piano for 210 minutes each week.
Total practice needed = 210 minutes
Total minutes practicing per day = 30 minutes
Let x be the number of days practiced
Total minutes practices after n days = 30x
Total remaining minutes = 210 - 30x
You would divide 1442 by 77 Giving you C=18.7
Hope this helped ^^
If not sorry ¯\_(ツ)_/¯
first you find 60% of 357.50 which is $214.50. Next you would add $357.50+214.50=572
so the awnser is
the sale price of a popular smart phone is $572.
Hope this helps!!
