lilyanade08
Answered

Get the answers you need at Westonci.ca, where our expert community is always ready to help with accurate information. Join our platform to connect with experts ready to provide detailed answers to your questions in various areas. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

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

Thank you for visiting. Our goal is to provide the most accurate answers for all your informational needs. Come back soon. Thank you for visiting. Our goal is to provide the most accurate answers for all your informational needs. Come back soon. We're dedicated to helping you find the answers you need at Westonci.ca. Don't hesitate to return for more.