Tank calculations :
Volume = 1/4(4/3 * pi * r^3)
r= 70 feet.
Volume = 1/4(4/3 * 3.14 * 70^3)
Calculating the values:
Volume = 359,000.67 ft.cubed
No we divide the actual radius by 6 to get the volume of scale model.
Hence,
6^3 = 216 times smaller.
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Answer:
20%
Step-by-step explanation:
If you see they say that the number decreased is 10% each and they say it two times. we could see that the missing number is as big as the length of two 10% together, so if you add them two you get 20%.
We know that the sum of all angles in a triangle = 180°
Angle (A+B+C) = 180°
or
(3x°+13) + (x°-8) + x° = 180
5x° + 5 = 180°===> 5x° = 175° & x =35°
Answer:
$2.10
Step-by-step explanation:
To find the total cost, multiply.
12.25*1.20 = 14.7
Tommy and 6 of his friends means 7 people.
Cost per person will be:
14.7/7 = 2.1
So
ollie=x
x-8=y
y=3x-16
subsitute y=3x-16 for y in the first equation so
x-8=3x-16
subtract x from both sides
-8=2x-16
add 16 to both sides
8=2x
divide both sides by 2
4=x
ollie is 4
