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satela [25.4K]
3 years ago
13

To get a final grade of B, a student must have an average mark on five tests that is greater than or equal to 80 and less than 9

0.
If Lisa's grades on the first four tests were 97, 93, 78 and 87, solve for the range of grades x that she could score on the fifth test that would result in her getting a final grade of B.
Mathematics
2 answers:
Mrrafil [7]3 years ago
8 0

Answer:

322+%2B+x+=+400

x+=+78 answer

must get at least a 78

Step-by-step explanation:

Art [367]3 years ago
8 0
The answer is 78 since yea cuz I said it was period Pooh
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2 years ago
80% of what # is 16?
liraira [26]
80% of x = 16
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Your final answer is 80% of 20 is 16.
4 0
3 years ago
A loan worth $1000 collects simple interest each year for 6 years. At the end of that time, a total of $1270 is paid back. Deter
Korolek [52]

Answer:

The percentage rate is 4.5%

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The simple interest earned in this situation is $1270 - $1000, or $270.

the simple interest formula is i =prt.

Here, i = $270 = ($1000)(r)(6 yr).

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Then r = ------------------- = 0.045

                $1000(6 yr)

The percentage rate is 4.5%

5 0
2 years ago
THe product of three numbers is 3150. Two of the number are 14 and 15. Find the third number
Sholpan [36]

Answer:

15

Step-by-step explanation:

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Hope this helps!

4 0
3 years ago
Read 2 more answers
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