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zloy xaker [14]
3 years ago
9

Safie can write a minimum of five questions per hour and a maximum of eleven questions per hour. What is the difference betwwen

the last possible amount of hours and the greatest possible amount of hours Safie will need to write 275 questions?
A. 6
B. 16
C. 30
D. 800
Mathematics
1 answer:
Monica [59]3 years ago
3 0

Answer:

<em>The difference is 30 hours</em>

Step-by-step explanation:

<u>Proportions</u>

Safie can write a minimum of 5 questions per hour and a maximum of 11 questions per hour.

To write 275 she takes a maximum of 275/5=55 hours and a minimum of 275/11=25 hours.

The difference is 55 hours - 25 hours = 30 hours

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Hope this helps!
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Which is the correct first step for solving this equation? 2x-7=5?
scZoUnD [109]

Answer:

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Step-by-step explanation:

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3 years ago
In a test (+4) marks are given for every correct answers and (-3) marks are given for every incorrect answers 1) Tahiya answered
stealth61 [152]

Answer:

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Step-by-step explanation:

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Incorrect = -3

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2) Helmin got 5 correct answers and scored a -14, the number of incorrect answers was:

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In both cases the number of incorrect answers obtained is a fraction, which means that either the data provided is inaccurate, or that the scores obtained by the students are approximate. Let's round the number of incorrect answers to the nearest whole answer.

Tahiya attempted 3 incorrect answers.

Helmin attempted 11 incorrect answers.

4 0
3 years ago
I need help!!
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Step-by-step explanation:

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Im not sure what you are asking, but i will say the answer is 

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3 years ago
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