196, because 20-4 equals to 16 and 16 times 12 equals 192, and 192 minus 6 is equal to 186.
Answer:
x=1
Step-by-step explanation:
3x+8x-8=3
11x=3+8
11x=11
x=11/11
x=1
You can use 27 $10 bills which gets your at a total of $270 then you can use 1 $5 bill so now you're at $275 then you can use 4 $1 bills that gets you at your total of $279. The least number of bills you can use is 32.
In this problem, you're looking for the value of t, so that f(t) = 48. That means if you put t into 5t-7, you'll get 48. To do this set up and solve an equation for t by setting 48 equal to 5t-7:

Isolate the variable by adding 7 to both sides.

Divide by 5 on both sides to find t.

The answer is 11.
310 / 75-5 = 4.42 or 4.4 hours. Let me know if you have any other questions.