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. (4 points)

equation that represent this situation is 0.65 x + 3 = 21

Step-by-step explanation:

given data

profit = $21.00

sold = $0.75

received a tip = $3

buy plastic cup = $0.10

solution

we consider here number of cups = x

so here equation will be here number of cup price of 1 cup plus tip from a neighbor equal to selling profit

x ( 0.75 - 0.10 ) + 3 = 21   1

0.65 x + 3 = 21

so equation that represent this situation is 0.65 x + 3 = 21

i think the amount would be $140.62

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%