What two numbers have a product of 234 and a sum of 31? You may have to use a guess and check method.

265

Step-by-step explanation:

234+31=265 I use additional

13 and 18

Step-by-step explanation:

xy = 234

x + y = 31

Guess and check: go through factors of 234 and find that 18*13=234. 18+13=31 so it satisfies both equations.

1/4 and 8/3 because:

the reciprocal if 4 is 1/4 because 4 is used as 4/1 and the opposite of that is 1/4. the opposite of 3/8 is 8/3 so that is the answer.

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.