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:
-161
Step-by-step explanation:
-11(3)-16(8)
PEMDAS
P there are no parentheses
E there are no exponents
MD Multiply and divide from left to right
-33 -128
AD add and subtract from left to right
-161
Step-by-step explanation:
Charges per page = $0.08
Amount Lionel paid = $20.00
No of pages = 20 ÷ 0.08 = 250 pages
m = ρ v
m = (0.492 g / mL) * 163.5 mL
m = 80.442 g
rounded to nearest hundredth:
m = 80.44 g
Answer:
1.33 or 4/3
Step-by-step explanation:
6/3 ×2/3
2/3× 2/1
= 4/3
=1.33
