He founded and co-directed the Bay Area<span>-based ACCLAIM professional ... Find the </span>whole<span>, or </span>one<span> part, when a </span>whole<span> is divided into parts in a given ration. ..... If the pail he is using can hold </span>9<span> cubic </span>feet<span> of water, how many times will he need to empty ..... Using the scale of </span>1 inch equals<span> 200 miles, determine the point-to-point</span><span> ..
which will give you the answer of 20.</span>
Answer:
Step-by-step explanation:
![\begin{aligned} &-9y+4x - 20=0 \\ &-7y+16x-80=0 \end{aligned}](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7D%20%26-9y%2B4x%20-%2020%3D0%20%5C%5C%20%26-7y%2B16x-80%3D0%20%5Cend%7Baligned%7D)
Subtract 4 times the first equation from the second:
(-7y +16x -80) -4(-9y +4x -20) = (0) -4(0)
29y = 0 . . . . . simplify
y = 0 . . . . . . . .divide by 29
4x -20 = 0 . . . . substitute 0 for y in the first equation
x -5 = 0 . . . . . .divide by 4
x = 5 . . . . . . . . add 5
The solution to this system is (x, y) = (5, 0).
Answer:
$6.28
Step-by-step explanation:
hope this helps
Hello,
as sin² x -cos² x=cos 2x
The equation is
cos 2x=0
==>2x=π/2+kπ
==>x=π/4+kπ/2 with k integer