H = 68
g = 112
k = 82
m = 98
Answer:
Point Slope Form: y - 0 = 2 (x + 5)
Answer:
7.3 times 10 to the 8th equals 730000000
2.4 times 10 to the 3rd equals 2400
Step-by-step explanation:
To find this out, simply divide 186 by 21. Which is 8.9 (i rounded it)
But you can just multiply (to check) 21 by 8 to geet 168. Any further, you would get a number higher than 186.
~Hope this helped :)

now, notice, we use the decimal format for the percent, namely 17% is 17/100 or 0.17 and so on
so.... we know, whatever "x" and "y" is, they must add up to 100 grams
thus x + y = 100
and whatever the concentrated amount is, it must add up to 17 grams for the composition
thus 0.1x + 0.2y = 17

solve for "x", to see how much is needed of the 10% alloy
what about "y"? well, y = 100 - x