Answer:
4
Step-by-step explanation:
If she got a 90% on her test, and the test was 40 questions long, we need to do a bit of division and multiplication.
We have to divide 40 by 100, as percentages are out of 100.
So now we have 0.4.
Now we multiply this by 90.
36. She got 36 answers correct out of 40, which means she got four wrong.
Answer:
c
Step-by-step explanation:
i remember getting this in my maths exam so i hope its correct
To solve, the first step is to find the LCM (least common denominator). In this scenario, it's ten.
6 5/10 - 2 3/10
From here, do the math. It's easy this time, what's 5 - 3? Two.
Now, subtract two from six. (four)
4 and 2/10
4 and 1/5
There! :)
