The exchange rate is 60:50 (us:euro)
if you have 70 euros, then x:70
60(x) : 70(50)
60x /60 : 3500/60
x = 58.33
seventy euro dollars = $ 58.33 on that particular day
hope this helps
Let x = cost of one cheese pizza.
Let y = cost of one pepperoni pizza.
Set up a system of equations.
6x + 7y = 153.50
2x + 2y = 47.00.
Multiply the second equation by -3
6x + 7y = 153.50
-6x - 6y = -141.00.
Add the equations together
y = $12.00.
Plug 12 into one of our original equations.
2x + 2(12) = 47.
Simplify the left side.
2x + 24 = 47.
Subtract 24 from each side.
2x = 23.
Divide each side by 2
x = $11.50
In conclusion, one pepperoni pizza costs $12.00
Answer:
So, exist 18564 different possibilities.
Step-by-step explanation:
We know that the eighteen passengers get on an airport shuttle at the airport. The shuttle has a route that includes six hotels, and passengers get off the shuttle at their hotel.
We calcuate how many different possibilities exist that eighteen passengers can choose six hotels. We get:
So, exist 18564 different possibilities.
I think the answer should be 38
-3x - 3y = 3 ⇒ -3x - 3y = 3
5x + 1y = -17 ⇒ <u>-15x - 3y = 51</u>
<u>12x</u> = <u>-48</u>
12 12
x = -4
5x + y = -17
5(-4) + y = -17
-20 + y = -17
<u>+ 20 + 20</u>
y = 3
(x, y) = (-4, 3)
