Question

Captured carbon dioxide can be used for different purposes. Food and beverage companies use 4 million metric tons (MMt) of carbon dioxide per year, which is 6% of all captured carbon dioxide. Enhanced oil and natural gas recovery uses 88% of all captured carbon dioxide. Create a formula where x = the amount of carbon dioxide used for enhanced oil and natural gas recovery. Solve for x.

The amount of CO2 used for enhanced oil and natural gas recovery is ___ MMt.

Answer 1

59

Step-by-step explanation:

The amount of CO2 used by food and beverage companies is 4 MMt. This is 6% of all captured CO2.

The amount of CO2 used for enhanced oil and natural gas recovery is x MMt, which is 88% of the total CO2 captured. Set up a proportion and solve:

The amou

Answer 2

Let y = the carbon dioxide used by food and beverage companies.

y = 4 million metric tons (MMT)

since y = 6% of all captured carbon dioxide,
t = y/6 * 100
where t is the total captured carbon dioxide, which = 66.67 MMT
if enhanced oil and natural gas recovery (x) uses 88% of all captured carbon dioxide,

x = t/100 * 88

= 58.67 MMT