Answer:
x=40 y=16
Step-by-step explanation:
20x+50y=800 you can turn it into slope-intercept form and it would end up being y=-2/3x+16 so now you have your y intercept (16) and you know your rise and run -2(rise)3(run).
Or you can substitute a zero for x and solve for y
20(0)+50y=800 which equals 50y=800 which equals 16 y=16
then you substitute a zero for y and solve for x
20x+50(0)=800 which equals 20x=800 which equals 40 x=40
Step-by-step explanation:
find the value of f(-4) first
f(-4) = (-4)^2 - 7 ➡ 9 use this to find g(f(-4))
g(9) = 5 - 9^2 ➡ -76
Answer: 54.33%
<u>Explanation:</u>
14 carat gold contains 58.33% gold and 4% silver (since we are using the lowest percentage).
58.33% - 4% = 54.33%
There is 54.33% more gold than silver in the 14 carat gold mixture.
Answer:
Step-by-step explanation:
