(1.3X10^6ft/hr)(2.8X10^3hr)
(1.3*2.8)(10^6*10^3)
Rule (a^b)(a^c)=a^(b+c)
(3.64)(10^(6+3))
3.64(10^9)
3.64X10^9 ft
Technically we only had two significant figures and the answer should be:
3.6X10^9 if we were to express our answer to the correct number of significant figures....
Answer:
D
Step-by-step explanation:
Answer:
Ground seats = 450 people
Balcony seats= 132 people
Step-by-step explanation:
Hi, to answer this question we have to write a system of equations:
The money raised (6480) must be equal to the product of the charge per balcony seats (15) and the number of balcony seats sold (b) ;plus the product of the charge per ground seats (10) and the number of ground seats sold (g)
15 b +10 g =6480
The total number of people (582) must be equal to the sum of balcony seats sold (b) and ground seats sold (g).
b+g = 582
Multiplying the second equation by 10, and subtracting it to the first equation:
15 b +10 g =6480
-
10b+10g = 5820
__________
5b =660
Solving for b
b = 660/5 = 132
Substituting b=132 in the second equation:
132+g = 582
g= 582-132
g= 450
Determine the volume
The mayonnaise is sold per unit of volume (in³). Therefore we need to find the volume of the jar to determine the cost. The volume of the jar is equal to the volume of a cylinder.
v = π × r² × h
Input the numbers
v = 3.14 × (1.5)² × 7
v = 3.14 × 2.25 × 7
v = 49.445
The volume of the jar is 49.445 in³
Determine the cost
cost = volume in in³ × the cost per in³
cost = 49.445 × 0.08
cost = 3.9564
to the nearest hundredth
cost = 3.96
The cost of the jar of mayonnaise is $3.96
