The seventh-grade class earned 40% of the selling price of each flower. In September, they sold 900 flowers. In October, they so
2 answers:
Answer:
They earned more money in September by $30 dollars
Step-by-step explanation:
The selling price of each flower is .375 dollars per flower, so if they sold 200 more, and the class earns 40% of the selling point we jut have to make the multiplications to know how much they earned for each flower:
No we just multiply that by the difference in the number of flowers sold:
And the answer is that they earned $30 more in september than in october.
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Answer:
Number of quarters → 15
Number of dimes → 2
Step-by-step explanation:
Let the number of dimes I have = y
And number of quarters = x
Since, I have amount in my pocket = $2
Therefore, 0.10y + 0.25x = 2
100(0.10y + 0.25x) = 100×2
25x + 10y = 200
5x + 2y = 40
2y = -5x + 40
y = -2.5x + 20 ---------(1)
Total number of coins in my pocket = 17
x + y = 17
y = -x + 17 ---------(2)
By using a graphing calculator we can graph these two lines (As attached)
Solution of the given system of equations will be the point of intersection of these lines.
Solution → (2, 15)
Number of quarters → 15
Number of dimes → 2
First define the variables:
c = amount of children
a = amount of adults
Next create the equations to satisfy the conditions:
1) Total group is 12 people:
2) Total cost is $100 with adults costing $10 and children being $6: