5 Trumpets
10 Trumpets
8 Trombones
6 Trombones for 15 Trumpets
A) Let C = Total cost
C = 1.085
b/c) - you need the price of the product you are buying
Answer:
The solution is (0, 3/4)
Step-by-step explanation:
Please copy and share the instructions. Here they are: Solve the following system of linear equations.
Both of the equations can be reduced (simplified):
2x+8y = 6 => x + 4y = 3
15x + 20y = 15 => 3x + 4y = 3
Let's use the elimination by addition and subtraction method. Multiply the first equation by -1, obtaining
-x - 4y = -3
Add the second 3x + 4y = 3
equation to the
first.
We get: 2x = 0.
Thus, x = 0. Substituting 0 for x in the 1st original equation yields:
2(0) + 8y = 6. Then y = 6/8, or y = 3/4.
The solution is (0, 3/4).
On expanded form is for example 139 in expanded form would be (100)+(30)+(9)and area model is the model for multiplication
Answer:
The answer is B
Step-by-step explanation:
