per annum, namely compound interest with an APR of 5%.
Answer:
b
Step-by-step explanation:
Answer: The last one.
Step-by-step explanation: Using the vertical line test, if you place a vertical line at any point of a function it should only cross the line of the function once. since it would cross it twice on the last one, it is not a function.
Answer:
Step-by-step explanation:
Let x represent the certain number of of subscriptions in an hour that each of them would sell so that they will end up earning the same amount.
Michelle earns a base wage of $8 per hour, as well as $1 for every subscription that she sells. This means that the total cost of selling x subscriptions in an would be
x + 8
Cody gets $3 per subscription sold, in addition to a base wage of $4 per hour. This means that the total cost of selling x subscriptions in an hour would be
3x + 4
For both of them to earn the same amount,
x + 8 = 3x + 4
3x - x = 8 - 4
2x = 4
x = 4/2 = 2
They would earn the same amount when they sell 2 subscriptions.
The amount that each would earn is
2 + 8 = $10
Answer:
(- 1, 2 )
Step-by-step explanation:
Given the 2 equations
- 3x - 5y = - 7 → (1)
- 4x + 5y = 14 → (2)
Add the 2 equations term by term to eliminate y , that is
- 7x + 0 = 7
- 7x = 7 ( divide both sides by - 7 )
x = - 1
Substitute x = - 1 into either of the 2 equations and solve for y
Substituting into (1)
- 3(- 1) - 5y = - 7
3 - 5y = - 7 ( subtract 3 from both sides )
- 5y = - 10 ( divide both sides by - 5 )
y = 2
solution is (- 1, 2 )