Answer:
The jar of chermical contains 66g of Zinc.
Step-by-step explanation:
The ratio of Zinc to Copper is 3 : 13
A jar of the chemical contains 286g of copper.
Let the mass of the Zinc be xg.
13/3 = 286/x
x = 3A286/13= 66g
So the jar of chemical contains 66g of Zinc.
Answer:
the answer is c because it's on the x axis is 1 and the y axis is on 4
Answer:
no, he will not.
Step-by-step explanation:
If he goes 140 miles in 2 hours, then in 6 hours he would go 420 miles. 420 miles is not equivalent to 490 miles, so he would not reach his destination on time.
Answer:
12x42=504
504/2=252
252
Step-by-step explanation:
Answer:
The original number is 4
Step-by-step explanation:
Let x be the number.
5 is added to x => 5+x
When it is multiplied by 3,
3*(5+x) = 27
=> 15 + 3x = 27
Subtract 15,
3x = 27 - 15 = 12
Divide by 3,
x = 4
