Answer:
11 11/40
Step-by-step explanation:
3 7/5 + 6 7/8 = 22/5 + 55/8 = 176/40 + 275/40 = 451/40 = 11 11/40
Each two digit number has two numbers (duh!). Let's allow the tens digit to be x and the units digit to be y. Tens digit is 3 less than the units digit: x = y-3 Original number is 6 more than 4 times the sum of the digits: 10x+y-6 = 4x + 4y This gives us simultaneous equations!First let's clear the mess: 1. x= y-32. 6x-3y=6 Substitute 1 into 2: 6(y-3) -3y =66y - 18 - 3y = 6
3y = 24y = 8 Our units digit is 8 Substitute y= 8 into 1. x = y - 3x = 5 Our tens digit is 5 Therefore, our number is 58
Answer:
12
Step-by-step explanation:
just find the HCF, which will be
2² × 3 = 12
