Answer:
16y +14x
Step-by-step explanation:
2y+4y+=6y
5x+12x=17x
17x-4
Answer:
189
Step-by-step explanation:
Step 1: the output value is 105
x=1.8% 105=100 (1) x=1.8% (2)
Answer:
the percent of increase is 24%
Step-by-step explanation:
The percent of increase in general could be calculate as:

where Vf is final value and Vi is initial value.
From the question we know that Vi is equal to 25 and Vf is equal to 31. Replacing this values on the equation we get:

That's mean that at second attempt the percent of increase is 24%, taking into account that at the first attempt a student get 25 questions correct.
8 x ¾ is the same as adding ¾ + ¾ + ¾ + ¾ + ¾
because, when you are adding 3/4
8 times, you are 3/4 plus itself,
eight times,
so you are doing 3/4*8
Answer:
The answer is 113.04
Step-by-step explanation: