lilyanade08
Answered

Get the answers you need at Westonci.ca, where our expert community is always ready to help with accurate information. Experience the convenience of getting accurate answers to your questions from a dedicated community of professionals. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.

alice average mark for 4 science exams is 68%. Can alice score enough marks In a fifth exam so that her average Mark increases to 75% give reasons

Sagot :

madethisfortwitch1

Answer:

it is impossible she gets a 75% because as far as we know she can only score a maximum of 100 and she needs a 103

Step-by-step explanation:

We're going to assume that alice got a 68 on all 4 of her science exams

which means that so far we have[tex]\frac{68+68+68+68}{4}=68[/tex]

And we need to find out if she can get a 75 which means that we have the following

[tex]\frac{68+68+68+68+x}{5}=75[/tex]

Solve for x

272+x=375

x= 103

Therefore (unless there is extra credit available in the exam) it is impossible she gets a 75% because as far as we know she can only score a maximum of 100

We appreciate your time. Please revisit us for more reliable answers to any questions you may have. We appreciate your time. Please come back anytime for the latest information and answers to your questions. Stay curious and keep coming back to Westonci.ca for answers to all your burning questions.