Answer:
21 = .75x - .1x + 3
Step-by-step explanation:
Daria made a profit of $21.00 selling lemonade. She sold her lemonade for $0.75 per cup, received a tip of $3 from a neighbor, but also had to buy each plastic cup she used for $0.10 per cup. Write an equation to represent this situation.
Total Profit = $21.00
x= number of cups
Price of each cup = $0.75
She paid $0.10 for cups used by her
Tip from neighbor= $3
Equation:
Expected Total cost of cups = 0.75 * x
= 0.75x
Cost of cups used = 0.10 * x
= 0.1x
Daria used 0.1x of the total cups that should be sold
Total sold= Expected cups to be sold - used cups
= 0.75x - 0.1x
Profit = Total sold + tip from neighbor
21.00 = 0.75x - 0.1x + 3
21 = .75x - .1x + 3 is the equation
Answer: No solution
Step-by-step explanation:
Once you simplify the problem, you end up with -10=0 which is false.
Kelly traveled 50 miles with 20 gallons, 50/20 = 2.5 miles per gallon
Andy traveled 78.75 miles with 15 gallons, 78.75 / 15 = 5.25 miles per gallon
Rick traveled at 4.8 gallons per mile
Andy traveled furthest.
Try this options:
a. total - 6 digits, '6' - 1 digit, then probability of rolling a '6' is 1/6;
b. total - 6 digits, '6' - 1 digit, then probability of rolling 1,2,3,4,5 is 5/6;
c. if probability of rolling a '6' is p and not rolling a '6' is q, then p+q=1;
d. if expected probability of one rolling a '6' is 1/6, then numbers of times of rolling a '6' during 120 times is 120/6=20 times.