Answer:
The percent attendance for that semester was 30%.
Step-by-step explanation:
In this problem, out of 190 students, only 57 students had perfect attendance. When a question says something like this, then it means that you are going to use division. You are going to divide 57 by 190.
57 ÷ 190 = 0.3
Now, multiply 0.3 by 100 to get the percentage.
0.3 * 100 = 30
So, the percentage of the perfect attendance is 30%.
Answer :
5 students study both French and Spanish
2 students study neither French nor Spanish
30 students study French, but not Spanish
Answer:
200 kg
Step-by-step explanation:
If w is the amount of water added, then the concentration of the solution is ...
salt/solute = 100(0.30)/(100 +w) = 0.10
30 = 10 +0.10w . . . . . simplify
20 = 0.10w . . . . . . . . subtract 10
20/0.10 = w = 200 . . . . divide by 0.10
200 kg of water must be added to dilute the solution to 10%.
D. 1/2 due to the fact that 10 would be over 20 so 10/20 and simplified is 1/2.
<h2>16</h2><h2 />
The equation for this problem: x = 4y
meaning... 4 x 4 = the answer... 16
Please mark me brainliest, if you can.
