Answer:
Step-by-step explanation:
A question on a math quiz asks, "What is 175% of 72?" Petra calculates 12.6 as the answer. Is this a reasonable answer? Explain
the simple interest rate would be...colected by the end of the 5 years and the compounded is 2%
Answer:
the chance of getting heads when flipping a coin is 50%. As I cannot see the graphs, choose the one that shows 50%.
<h3>
Answer: $70</h3>
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Explanation:
- x = number of days that elapsed
- y = bank balance in dollars
His bank balance is represented by the linear equation y = -20x+150.
The slope -20 means the balance goes down by 20 dollars each day. The y intercept 150 is the starting balance.
Plug in x = 4 to find the balance after four days
y = -20x+150
y = -20*4+150
y = -80+150
y = 70
His balance is $70 after four days. The -80 in the third step indicates the balance had gone down by $80.
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Another way to see why the answer is $70 is to write it out like this
day 0 = $150
day 1 = 150-20 = $130
day 2 = 130-20 = $110
day 3 = 110-20 = $90
day 4 = 90-20 = $70
