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prohojiy [21]
3 years ago
8

The average of 3 test scores if the first two scores are 78 and 82 s=3rd test score

Mathematics
1 answer:
katen-ka-za [31]3 years ago
3 0
If you're given 78 and 82 the answer is a simple average
(78 + 82 + s)/3

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Suppose 12% of the students chose to study French their freshman year, and that meant that there were 21 such students. How many
AleksAgata [21]

Answer:

154 students

Step-by-step explanation:

First get the total number of students .

This can be gotten by

12% of A = 21

Where A represents the total number of students.

12% represents the % of A that chose to study French and 21 is the number of students that studied French .

Therefore,

12% /100% x A = 21

0.12 x A = 21

Divide both sides by 0.12

0.12/0.12 x A = 21/0.12

A = 175

The total number of students is 175.

If 21 chose to study French their freshman year ,number of students that chose not to will be total number of students minus number of those who chose to study French.

That’s

175 - 21

= 154

154 students chose not to study French their freshman year

4 0
3 years ago
What is the value of 5k2−6 when k = 9?
Anarel [89]

Answer:

84

Step-by-step explanation:

Plug in 9 for k.

5(9)(2) - 6

first: (9)(2) = 9 x 2 = 18

5(18) - 6

second: 5(18) = 5 x 18 = 90

last: 90 - 6 = ?

84

hope this helps

5 0
2 years ago
Learn with an example<br> Find the perimeter. Simplify your answer.<br> y-6<br> y-5<br> y-5<br> y-6
koban [17]

Answer:

P = 22

Step-by-step explanation:

P= l(2) + w(2)

5(2) + 6(2)

10 + `12

22

6 0
2 years ago
Which of the following is the solution to |x|-5&lt;= -13?
kow [346]

Answer:

drishyam 2 train to bysan

Step-by-step explanation:

7 0
2 years ago
A group of students held a fundraiser last year and raised $950 for charity. this year, they raised $1,045. what is the percent
podryga [215]
% change = (new value - old value)/old valu x 100 = (1,045 - 950)/950 x 100 = 95/950 x 100 = 0.1 x 100 = 10%
6 0
3 years ago
Read 2 more answers
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