Answer:
(-x-y)
Step-by-step explanation:
Given data
First expression = ( 3x + y)
Second expression = (-4x -2y)
Add the two expresssion
= ( 3x + y)+ (-4x -2y)
Open bracket
=3x+y-4x-2y
collect like terms
=3x-4x+y-2y
=-x-y
Hence the result is (-x-y)
Answer:
3,000 is your answer
Step-by-step explanation:
so you set it up: 3/5 = x/5000
5(x)= (3)(5000)
3 X 5,000 = 15000
15000 = 5x
divide each side by 5, 5x and 5 cancel out and (15000 /5 =3,000) that will leave you with an answer of 3,000
10
20
Total Cost
$17.50
$35.00
$52.50
$70.00
30
40
$3.50
$1.75
$17.50
$7.25
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Explanation:
To get the unit cost, we divide the total cost over the number of pounds.
We can do this for any row
You don't need to show all four row calculations. You can simply pick one row.
This tells us that each pound costs $1.75
Put another way: the price is $1.75 per pound
Let x = # of tapes
Let y = # of cds
Since the amount you spend cannot go over 32 dollars, the amount you buy must be less than or equal to 32 dollars.