Mrs. ford used 2.351 gallons of gas on sunday, 4.15 gallons on wednesday, and 1.105 gallons on friday. how many gallons of gas did she use?
a.7.606 gallons
b.3.871 gallons
c.5.673 gallons
d.10.223 gallon

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

answer is c

step-by-step explanation: