Answer:
s = 2.8y
Step-by-step explanation:
Score is proportional to the amount of correctly answered question :
Given that:
Score earned by Rachael = s =70
Number of correctly answered question = y = 25
Hence,
Score α number of correctly answered question
s = ky
70 = 25k
k = 70/25
k = 2.8
Hence, one correct answer gives 2.8
Hence,
Score obtained = 2.8 * number of questions answered correctly
s = 2.8y
I did this two years ago. Hope I can help you.
Answer:
2/7 and 1/2
The common denominator = 7× 2
= 14
Step-by-step explanation:
Answer:
d. add 4; 1, 5, 9
Step-by-step explanation:
to get from -15 to -11, they had to add 4, and so on.
-3+4= 1
1+4= 5
etc.
Answer:
6
Step-by-step explanation:
25x5=125
750 divided by 125 =6
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