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gogolik [260]
3 years ago
9

Adriel answered 54 questions correctly on his multiple choice history final and earned a grade of 45%. How many total questions

were on the final exam?
Mathematics
1 answer:
alex41 [277]3 years ago
8 0

Answer:

There were 120 questions on the test.

Step-by-step explanation:

It is given that:

Number of questions answered = 54

Grade percent = 45%

Let,

x be the total number of questions

45% of x = 54

\frac{45}{100}x=54\\0.45x = 54

Dividing both sides by 0.45

\frac{0.45x}{0.45}=\frac{54}{0.45}\\x=120

Therefore,

There were 120 questions on the test.

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Shryia read a 480-page-long book cover to cover in a single session, at a constant rate. After reading for 1.5 hours, she had 40
svet-max [94.6K]

Answer:

The required equation is P(t) = -52t + 480

Step-by-step explanation:

Consider the provided information.

Let P represent the number of pages left to read after t hours.

Shryia read a 480-page-long book cover to cover in a single session, at a constant rate. After reading for 1.5 hours, she had 402 pages left to read.

Total number of page Shryia read in 1.5 hours is:

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It is given that the rate is constant i.e 1.5 hours,

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