Answer: 4 9/10
Step-by-step explanation: You need to subtract 12 2/5 and 7 1/2.
The two fractions have different denominators. Multiply to find a common denominator
2/5 x 2/2 = 4/10
1/2 x 5/5 = 5/10
Now you have 12 4/10 minus 7 5/10. But you cannot subtract 4/10 and 5/10 equally.
Subtract 12 - 1 and add 1 to 4/10.
12 - 1 = 11
10/10 (10/10 is 1) + 4/10 = 14/10
Now you have 11 14/10 minus 7 5/10. Subtract.
11 - 7 = 4
14/10 - 5/10 = 9/10
That makes 4 9/10.
Hope this is helpful :)
Answer: D or 36 just answered on apex
Step-by-step explanation:
Answer:
11. (x-2)/(x+8)
12. 9+t
13. h = 2A/b
Step-by-step explanation:
11. Since x is used to represent the number, 2 less than a number is x-2. 8 more than a number is x+8. The quotient of the first and second of these is the first one divided by the second one:
... (x -2)/(x +8) . . . . . parentheses are required unless the expression is typeset:

12. Apparently, we're to assume the salesman keeps on driving. If he had any sense (or a good union), he would stop after 9 hours. t hours added to 9 is ...
... 9 + t
13. Divide by the coefficient of h.
... h = A/((1/2)b) = 2A/b
Answer:
73
Step-by-step explanation:
250 - 200 + 38 - 15 = 73
Answer:
3.3 × 
Step-by-step explanation:
I hope this helps!