14. 5/6
15. 13 9/10
16. 5/12
17. 5/8
(those are the answers i got i'm sorry if some of them are not correct but i used a website called mathpapa and its an algebra calculator and works well)
Answer:
<h2>515 liters of water</h2>
Step-by-step explanation:
![1\ L=1,000\ mL\\\\\text{therefore}\\\\515,000\ mL=\dfrac{515,000}{1,000}\ L=515\ L](https://tex.z-dn.net/?f=1%5C%20L%3D1%2C000%5C%20mL%5C%5C%5C%5C%5Ctext%7Btherefore%7D%5C%5C%5C%5C515%2C000%5C%20mL%3D%5Cdfrac%7B515%2C000%7D%7B1%2C000%7D%5C%20L%3D515%5C%20L)
Solve either equation for either variable. Since the second one has y on its own, the easiest choice is to solve that for y.
-5x + y = 13 ⇒ y = 5x + 13
Now substitute this into the other equation to eliminate y and rewrite it entirely in terms of x :
-3x + 3y = 3 ⇒ -3x + 3 (5x + 13) = 3
Simplify and solve for x :
-3x + 15x + 39 = 3
12x = -36
x = -3
Substitute this into either original equation to solve for y. Plugging x = -3 into the first equation would give
-3 (-3) + 3y = 3
9 + 3y = 3
3y = -6
y = -2
So the solution to the system of equations is (x, y) = (-3, -2).
Answer:
1692.5 ft³
Step-by-step explanation:
Thank you for giving the equation which would help me in solving. We know that our h which is the height is 11 ft. We have to find what the radius. Radius is the have of the diameter. In the figure, the 14 ft is the diameter. So in order to find the radius, we would divide it by 2.
14 ft ÷ 2 = 7 ft
h = 11 ft
r = 7 ft
Now plug it in the equation.
![\pi](https://tex.z-dn.net/?f=%5Cpi)
In the equation you have this sign above. Remember this is the pi sign which is 3.14.
V = 3.14r²h
V = 3.14<u>(7)</u><u>²</u> × 11
V = <u>3.14(49)</u> × 11
V = <u>153.86 × 11</u>
V = 1692.5 ft³
Hope this helps, thank you :) !!
60 grams because 15% of 400 is 60.