Answer:
0.00001
Step-by-step explanation:
Answer: it contains 200 grams of zinc.
Step-by-step explanation:
Ratio of zinc to copper is 4 to 15 = 4;15
Total ratio = 4+15= 19
We first find amount of both zinc and copper( the whole chemical) which is equal to
ratio of copper / total ratio x (the entire chemical--total grams of zinc and copper) =amount of copper
15/19 x X = 750
X= 750 X 19 / 15= 950 grams
To find amount of zinc in the chemical = ratio of zinc / total ratio x total amount of chemical
=4/19 x 950
=200 grams
Answer:
probably 5 or so?
Step-by-step explanation:
I'm really not to sure myself but its around the 5-10s but if you're rounding at the nearest 430s it would be around the 20-30s or so if you ignore the order of operations just from just by doing mental maths I can conclude this with certainty.
It should be $57.30. I use a calculator for school but you just add 2.7% to 55.80 to find the answer.
