Answer:
y=90x+2,000
Step-by-step explanation:
90 is the rate of change because the hot air balloon descends 90 feet per minute.
And 2,000 is the starting point because the hot air balloon started the descent at 2,000 feet.
Answer:
<u>42 Hours.</u>
Step-by-step explanation:
As an equation where y is the total pages and x is hours of class:
y=1+1x since she started with 1 page and does 1 page per hour.
Setting the total pages she needs as 43 (y=43) we get:
43=1+1x
Subtract one on both sides
42=1x
The 1 doesn't need to be written so
x=42
Therefore, it'll take her 42 hours to write all those notes.
B (if annual interest),
200+12%=224
224+12%=250.88
Answer:
x < 6
Step-by-step explanation:

Subtract 4 form both sides

Multiply both sides by 3

For every 6 dumplings bought, you get charged $3.00 plus 7 cents for every dollar. Hope this helps:)