Answer:
Step-by-step explanation:
JERRODHASCBASEBALLCARDS.LINDAHAS38BASEBALLCARDS,WHICHIS5MORETHANONE-THIRDTHENUMBERJERRODHAS.WHICHEQUATIONSHOWSANEQUALITYBETWEENTWODIFFERENTWAYSOFEXPRESSINGHOWMANYBASEBALLCARDSLINDAHAS?A.)C538B.)C538C.)3C538D.)1/3C538
✨✨HOPE IT HELPS✨✨
D equals 38.2 I think because t equals 9.55. You would add -16t with -4t and get -20t. Which would turn into D=-20t^2+382. Since you can't multiply 2 with -20t, you would divide it by 382 which would be 191. D=-20t+191 with this, you would subtract 191 from +191 which would cancel out and it would turn the problem into -191=-20t. You would divide -20 from itself and -191 and get t=9.55. Then you plug t where it was in the problem and then you get that D=38.2. I hope my answer is right and it helps you.
Answer:
2 CH4(g) + 4 O2(g) --> 2 CO2 (g)+ 4 H2O(g)
Step-by-step explanation:
The number are subscripts.
Now count the number of each kind of atom on the left and right side of the equation. Note, you have 4 H on the left and as written you have only 2 on the right. So add a coefficient-- a number in front of the formula.
CH4 +O2 ----- CO2 + 2 H2O
With the added coefficient in front of water, the number of hydrogens balance but the number of oxygens do not. There are only 2 oxygens on the left and a total of 4 oxygens on the right. A coefficient of 2 in front of oxygen on the left balances the equation.
It's the same as adding 2 fractions the product of 2 rational numbers is rational
