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Lorico [155]
3 years ago
15

Jan's average score after fifteen tests was 82. Her average on the next five tests was 90. What was her average score for all tw

enty tests?
Mathematics
1 answer:
Leokris [45]3 years ago
4 0

Answer:

86

Step-by-step explanation:

82+90=172

172/2 (divided by two because thats how many numbers we added up to get 172)

172/2=86

86 is your answer

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Dovator [93]

Answer:

16,800

Step-by-step explanation:

350 * 49 = 16,800

3 0
3 years ago
Read 2 more answers
The picture is above.
vladimir2022 [97]

Answer: =x4+3x3+2x2−4

Step-by-step explanation:

(x2+3x+2)(x2)−4

Distribute:

=(x2)(x2)+(3x)(x2)+(2)(x2)+−4

=x4+3x3+2x2+−4

6 0
2 years ago
Claire bought a pair of jeans that regularly cost $50 on sale for $40. What was the percent decrease in price?
Len [333]

The answer is 20%

If 50 is your 100%, take 100 and 90 for example it would be obvious that is it 10% off, so with 50 since it is half of 100 you double the 10% which will be 20%. :)

5 0
3 years ago
You check 20 cartons of eggs. Three of the cartons have at least one cracked egg. What is the experimental probability that a ca
Blababa [14]

Answer:

craxk the egg on ur head and see ur answer

Step-by-step explanation:

4 0
3 years ago
How much more does $1,000 earn in eight years, compounded daily at 3%, than $1,000 over eight years at 3%, compounded semiannual
bekas [8.4K]

Answer:

Step-by-step explanation:

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