I'm so confused!!! Please help me. I will give brainliest! :)
1 answer:
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Considering the population of U.S. being 323,000,000 we will have the statement:
3 people .................................... 2 cars
323,000,000 people .................. x cars
=>
cars.
Next we will found out the miles driven in one year by all the cars:
215,333,333 * 10000 = 2,153,333,330,000 miles/ year.
2,153,333,330,000 : 365 = 5,899,543,378 miles/ day.
5,899,543,378 : 20 = 294,977,168 gallons.
3 people .................................... 2 cars
323,000,000 people .................. x cars
=>
Next we will found out the miles driven in one year by all the cars:
215,333,333 * 10000 = 2,153,333,330,000 miles/ year.
2,153,333,330,000 : 365 = 5,899,543,378 miles/ day.
5,899,543,378 : 20 = 294,977,168 gallons.
Answer: a11 = 3, a12 = 7, a21 = 1, a22 = -4
<u>Explanation:</u>
3x + 7y = 20
x - 4y = 9
A =
<u>column 1 </u> <u>column 2</u>
row 1: (a11) 3 (a12) 7
row 2: (a21) 1 (a22) -4