3 : 4 = 2700 : 3600
sum the parts of the ratio : 3 + 4 = 7
divide 6300 by 7 to obtain 1 part
= 900 ← 1 part
3 parts = 3 × 900 = 2700
4 parts = 4 × 900 = 3600
note that 2700 + 3600 = 6300
The lateral surface area of a cylinder is just the long side connecting the bases, whereas the total surface area includes both the lateral surface area and area of the two circular bases.
(Imagine a rectangle with the circumfrence of the base as one side and the height as the other being folded around)
(Plus the area of two circles)
The literal difference between surface areas would be the two bases 2πr² if you need that.
Let s be the speed of the slower plane; and s+83 be the speed of the faster one. Then:
3s+3(s+83)=3939
6s=3690
s=615
☺☺☺☺
Answer:
989 ft.
Step-by-step explanation:
7*13=91
<u>91</u> is the first rectangles area.
13+6=19
19*17=323
<u>323</u> is the second rectangles area.
25*23=575
<u>575</u> is the third rectangles area.
575+323+91=989
Answer:
Below
Step-by-step explanation:
1 mile = 5280 ft
60 miles 1 hour 1 min 5280 ft
------------ x ----------- x ----------- x ------------- = 1.48 ft/sec
1 hour 60 min 60 sec 1 mile
1 gallon = 16 cups
2 gal 1 hour 16 cups
-------- x -------- x ---------- = 0.53 cups / min
1 hour 60 min 1 gal