3 dozen=3·12=36
Use cross multiplication
1/3·36=5x
12=5x
12/5=5x/5
x=12/5 or 2 2/5 or 2.4
12/5 or 2 2/5 cups of flour is needed to make 3 dozen rolls
If I were solving this equation, I would put x^2-20x+(100)=(10). Since this is in standard form, you could change this into vertex form by making the equation y=(x-10)^2 -10.
Answer:
She made 7 field goals
Step-by-step explanation:
With the data we can make 2 equations
1 x + 2 y= 26
x+y=19 and y=19-x
Where,
x= free throws
y=field goals
Replacing y in the first equation
1 x + 2 (19-x)= 26
1 x + 38-2x= 26
1 x - 2x= 26 - 38
- 1x= -12
x=12
y=19-12
y=7
Answer:
1). Profit = 3x - 180
2) Profit of selling 1000 video games = $2820
Step-by-step explanation:
Expression for the revenue = 5x² + 2x - 80
Expression for the production cost of the video games = 5x² - x + 100
Since, profit is the difference between the revenue and the cost,
Expression for the profit will be,
Profit = Revenue - Cost
= (5x² + 2x - 80) - (5x² - x + 100)
= 5x² + 2x - 80 - 5x² + x - 100
= 3x - 180
Here, x = Number of video games sold
If number of video games sold = 1000
Profit = (3×1000) - 180
= 3000 - 180
= $2820
