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2 years ago

Can anyone please help me with this???

Mathematics

1 answer:

ira [324]2 years ago

3 0

Answer:

x=8a

Step-by-step explanation:

(3/a) x - 4 = 20

add 4 to both sides

(3/a) x = 24

Divide by 3/a

x = 24 / (3/a)

Use KCF (keep change flip)

x = (24/1) x (a/3)

x = 24a / 3

simplify

x = 8a

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Answer:

Step-by-step explanation:

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2 years ago

Jackie scored 81 and 87 on her first two quizzes . Write and solve a compound inequality to find the possible values for a third

asambeis [7]

Answer:

The third score must be larger than or equal to 72, and smaller than or equal 87

Step-by-step explanation:

Let's name "x" the third quiz score for which we need to find the values to get the desired average.

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Now we can proceed to solve for the unknown "x" treating each inaquality at a time:

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This inequality tells us that the score in the third quiz must be larger than or equal to 72.

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Therefore to obtained the requested condition for the average, the third score must be larger than or equal to 72, and smaller than or equal 87:

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