Answer:
The answer is (1/2 x 18 + 5)
Step-by-step explanation:
This is the answer because that is the only thing in the options higher than Keisha's expression.
Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!
The Last One 20-6c subtract 6 tixets to get ye awnser or the other way around it is still 20-6c
Written as a power of ten is 256.×10^0 or 2.56×10^1
Answer:
m=y2-y1/x2-x1 ⇒ m=-48+64/-15+21
m=16/6=8/3
y-y1/x-x1= m⇒ 8/3=y+64/x+21
8x+168=3y+192
3y=8x-24
x-intercept
3(0)=8x-24
x=24/8 →x=3
<u>x-intercept: (3,0)</u>
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To help with thinking about this, we can say that the 6 gallons of 50% acid contains 3 gallons of pure acid and 3 gallons of filler. This would make the concentration 3/6, or 50%. Adding a gallon of pure acid would shift the concentration to 4/7, or 57.1%.
When the relationship becomes 70%, four gallons of pure acid have been added.
3+4 7
—— = — = 70%
6+4 10
