Answer:
Given the following information, your system of equation is going to be...
x + y = 250
15x + 20y = 4250
Step-by-step explanation:
So, in the problem, we are given important key details that can help us solve it.
- x = number of $15 packages sold
- y = number of $20 packages sold
- The school collected $4250 from sales
- 250 packages were sold in total
Now that we have this information, we can solve the problem. Since 250 packages were sold in total, then you are going to add x and y. Since the school collected $4250 from the sales, then you are going to be adding 15x and 20y together.
So, to conclude, your answer is going to be the first answer choice.
Answer:
ur mum s house
Step-by-step explanation:
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Answer:
Originally there were 30, 25 cents stamps and 20, 15 cent stamps.
Step-by-step explanation:
We are given the following in the question;
Let x be the number of 25 cents stamps and y be the number of 15 cents stamps.
Marci has a total 50 stamps.
Thus, we can write
Also,
Total cost = $16.50
Thus, we can write the equation:
Solving the two equations:
Originally,
Thus, originally there were 30, 25 cents stamps and 20, 15 cent stamps.
Take x-2=0
x=2
put the value of x in the equation
2^2 + 3(2) + k =0
4+6+k=0
10+k=0
k= -10
hope you understand
