Answer:
Step-by-step explanation:
y-(-4)= 7/4(x-(-4)
Y+4= 7/4x +4
Y = 7/4x
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
Subtract 25 from 85 and that is your x
Answer:
5.13m^2
Explanation:
A = 1/2bh
A = 1/2(3.8)(2.7)
A = 5.13m^2
Answer:
t=10
Step-by-step explanation:
t+14=24
-14 -14
t=10
