Worded problem: Follow these guided instructions to solve the worded problem below. a) Assign a variable (name your variable) b) write expression/s us

Wierzycaz 2020-12-21 Answered
Worded problem: Follow these guided instructions to solve the worded problem below.
a) Assign a variable (name your variable)
b) write expression/s using your assigned variable,
c) formulate your algebraic inequality
d) Solve the algebraic inequality
e) and state your answer.
Worded Inequality problem:
Your math test scores are 68, 78, 90 and 91. What is the lowest score you can earn on the next test and still achieve an average of at least 85?
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Expert Answer

Bertha Stark
Answered 2020-12-22 Author has 96 answers

Step 1
Given: Math test scores are 68,78,90 and 91.
To find: The next lowest score on the next test and still achieve an average of at least 85.
Solution:
Average marks is given by formula:
Average=sum of marks in testnumber of test
Let marks scored in next be x.
Total number of test including next will be 5.
Therefore,
Average = sum of marks in test/number of test
85=68+78+90+91+x5
85×5=327+x
425=327+x
x=425327
x=98
Step 2
Hence, least marks required to achieve average marks of 85 is 98.

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