X + y = 40
y = 9x
x + 9x = 40 (substitute 9x for y in 1st equation)
10 x = 40
x = 4
4 + y = 40 (substitute 4 for x in 1st equation)
y = 36
630 sterling * 1 euro / 0.84 sterling
630 sterling divided by 0.84 sterling = 750 euros
Answer: 3 1/8
Step-by-step explanation: 8 goes into 25 3 times leaving 1/8 left so it would be 3 1/8.