Answer: 285 watts
Step-by-step explanation:
The heat loss h (in watts) through a single-pane glass window varies jointly with the window's area A (in square meters) and the difference between the inside and outside temperatures d (in kelvins). The equation relating h, A, d, and a constant k would be
h = kAd
If a single-pane of glass with an area of 1.00 square meter and a temperature difference of 1.00 kelvin has a heat loss of 5.70 watts, it means that
5.7 = k × 1 ×1
k = 5.7/1 = 5.7
The equation becomes
h = 5.7Ad
Therefore, the heat loss through a single-pane window with an area of 2.50 square meters and a temperature difference of 20 kelvins would be
h = 5.7 × 2.5 × 20
h = 285 watts
Answer:
3ⁿ
Step-by-step explanation:
The nth term is:
3ⁿ
Answer:
$2611.05
Step-by-step explanation:
earnings = lane rentals + concessions
<u>Friday</u>:
earnings = $842.72 +412.38 = $1255.10
<u>Saturday</u>:
We assume "down by 1/8" means the value was 1 -1/8 = 7/8 that of the previous day. Likewise, "increased by 1/2" is assumed to mean the value was 1 + 1/2 = 3/2 that of the previous day.
earnings = 7/8×$842.72 + 3/2×412.38 = $1355.95
__
Then the total earnings for both days were ...
$1255.10 +$1355.95 = $2611.05
