Answer:
<h2>14107500</h2>
Step-by-step explanation:
For this case, the first thing we must do is define variables.
We have then:
x: number of years of Joan y: number of years of ellen We now write the system of equations:
Solving the system we have:
So that Joan is 21 years old then:
Answer: joan will be 21 years old in 12 years
Answer:
Tires:
65(2) - 45(2) = 130 - 90 = $40 profit
Rims:
126(3) - 85(3) = 378 - 255 = $123 profit
Headlights:
15(5) - 5(5) = 75 - 25 = $50 profit
Total profit:
$40 + $123 + $50 = $213 profit
His total profit is $213
hope this helped
Step-by-step explanation:
Answer:
y = -4x + 6
Step-by-step explanation:
Answer:
7 well done burgers were served the restaurant.
Step-by-step explanation:
The percentage of whole done burgers = 10%
The number of burger served = 70
Hence, the number of well-done burgers the restaurant served is calculated as:
10% of 70 burgers
= 10/100 × 70
= 7 burgers