Let the second score = x
⇒ second score = x
<span>the first is 14 points more than the second
</span>⇒ first score = x + 14
<span>the sum of the first two is 6 more than twice the third
</span>⇒ third score = 1/2 (x + x + 14 - 6) = x + 4
<span>The sum of a student's three score is 246
</span>⇒ x + (x + 14) + (x + 4) = 246
<span>
Solve x:
</span>x + x + 14 + x + 4 = 246
3x + 18 = 246
3x = 228
x = 76
second score = x = 76
first score = x + 14 = 76 + 14 = 90
Answer: 90
Answer:
k = 8 + 100 (.25) - 2x
Step-by-step explanation:
Since there's a flat shipping rate, you need to first add 8.
Then you have to pay for the 100 key chains at $.25 each so you have to multiply them to get the total cost.
Next you earn 2 dollars for every key chain sold which becomes the 2x. You are then subtracting this from the amount of money you are spending to get k.
D. 7/8
7/8 = 0.875
2/3 = 0.66667
Since 7/8 is the largest value, it is the furthest from zero.
so.. whatever "x" is, we know 1125 + x = y
and whatever the alcohol concentration yield may be, we know
(1125)(0.9) = 0.75y
(1125)(0.9) = 0.75y <--- solve for "y", that's how much the final amount of milliliters will be
how much pure water was added? subtract 1125 from that, or y - 1125
4.44 because 40 divided by 9 is 4.44
