Answer:
Order of operations tells you to perform multiplication and division first, working from left to right, before doing addition and subtraction. Continue to perform multiplication and division from left to right. Next, add and subtract from left to right.
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Answer:
can't answer without the picture because you need the route to know how far.
Answer:
$4.20
Step-by-step explanation:
The Writing Emporium sells pencils and pens individually.
Step 1
We have to first find the price of a pencil and a pen
Let:
The price of a pencil = x
The price of a pen = y
Alana buys a pencil and two pens for $1.10.
x + 2y = 1.1 ......Equation 1
x = 1.1 - 2y
Jeffrey buys two pencils and a pen for $1.00.
2x + y = 1 ........ Equation 2
We substitute 1.1 - 2y for x in Equation 2
2(1.1 - 2y) + y = 1
2.2 - 4y + y = 1
-4y + y = 1 - 2.2
-3y = -1.2
y = -1.2/-3
y = $0.4
Solving for x
x = 1.1 - 2y
x = 1.1 - 2(0.4)
x = 1.1 - 0.8
x = $0.3
Hence:
The price of a pencil = x = $0.3
The price of a pen = y = $0.4
Step 2
How much does Edward spend to buy six pencils and six pens from the Writing Emporium?
6x + 6y
6($0.3) + 6($0.4)
$1.8 + $2.4
= $4.20
Therefore, Edward spent $4.20 to buy six pencils and six pens from the Writing Emporium.
Answer:
filtration system is not working
filtration
Answer: 6(1,2,3)
Step-by-step explanation:
