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abruzzese [7]
3 years ago
11

Find the widest range of scores that you can get on a final exam in order to receive a grade of B for the class. Using interval

notation
Need answer asap!!

Mathematics
2 answers:
Drupady [299]3 years ago
4 0

Answer:

Correct choice is B

Step-by-step explanation:

Let x% be your final test score, then the average of all test scores is

\dfrac{96+77+74+x}{4}.

Since you must have an average between 80% and 89%, then

80\le \dfrac{96+77+74+x}{4}\le 89,\\ \\320\le 247+x\le 356,\\ \\73\le x\le 109.

X is measured in percent, then the greatest value of x can be 100%. You get that

73\%\le x\le 100%.

stellarik [79]3 years ago
3 0

Answer:

[73, 100}

Step-by-step explanation:

96 + 77 + 74 + 65 = 312

312/4 = 78

96 + 77 + 74 + 70= 317

317/4 = 79.25

96 + 77 + 74 + 73 = 320

320/4 = 80

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zvonat [6]
A bald eagle. It’s higher and the analogue value, distance away from the ocean is closer to zero, so it’s closer to sea level
6 0
2 years ago
HeLp pLeAsE
zhenek [66]

Answer:

29.655

Step-by-step explanation:

Adding a negative number to a positive number is easy.

Subtract -3.095 from 32.750 which equals 29.655.

8 0
3 years ago
Read 2 more answers
Who's good at Fractions? Will give Brainlest to who answers.
Inga [223]
You need to add two mixed numerals.
One is positive and one is negative.
To add a positive number and a negative number, first take the absolute value of both, making them both positive. Then subtract the smaller absolute value from the larger absolute value. Finally, the sign of the answer is the same sign as the number that has the larger absolute value.

The numbers are -4 5/8 and 2 1/8

Take absolute values:
|-4 5/8| = 4 5/8
|2 1/8| = 2 1/8

Subtract the smaller absolute value from the larger absolute value.

4 5/8 - 2 1/8 = 2 4/8 = 2 1/2

The greater absolute value is 4 5/8.
Since the number with the larger absolute value was -4 5/8, a negative number, the answer is negative, -2 1/2

-4 5/8 + 2 1/8 = - 2 1/2
6 0
3 years ago
Amy joins a meal delivery service. Each family meal is $15, and there is a monthly flat shipping fee of $20. If Amy orders eight
8090 [49]

Answer: 140$

Step-by-step explanation: 15$ times 8 meals plus 20 dollar fee eaquals 140$

4 0
2 years ago
Write the equation in slope intercept form of the line passing through the following points (0,5) and (-5, -1).
krek1111 [17]

Answer:

y = 6/5x

Step-by-step explanation:

1. y = \frac{-1-5 }{-5-0}

2. subtract the two number on the top of the fraction bar to get 6

3. do the same for the denominator to get 5

4. your final answer is \frac{6}{5}

7 0
3 years ago
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