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drek231 [11]
3 years ago
6

If your chemistry grade is broken down so that 70% of it is exams, 20% is a lab, and 10% is homework, and your average scores ou

t of 100 points in each area are:
exams 85
labs 75
homework 96
Calculate your weighted average.
Mathematics
1 answer:
vodomira [7]3 years ago
6 0
84.1

(85 x 0.7) + (75 x 0.2) + (96 x 0.1) = 84.1
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Right and solve a proportion to answer the question what percent of 25 is 12
FrozenT [24]

Answer:

25% of 12 is 3

Step-by-step explanation:

Think of percents like fractions. 25% is 1/4 in fraction form. Then multiply 1/4 to 12, which is the same is as 12 divided by 4. And your answer is 3

8 0
3 years ago
-2.24224222422224222224 rational or irrational
Arada [10]
Rational. An irrational number is a number that cannot be turned into a fraction, and do not repeat. Therefore, your answer is Rational.
5 0
3 years ago
What is the solution to this system of linear equations 3x 2y 14 5x y 32
Leya [2.2K]

After simplification, the solution of this system of linear equation is (3.85, 12.75).

In the given question we have to find the solution to this system of linear equations 3x-2y=14 or 5x+y=32.

The given system of linear equations is:

3x-2y=14.......................(1)

5x+y=32.......................(2)

Multiply equation 2 by 2, we get

10x+2y=64.......................(3)

Add equation 3 by 1, we get

10x+2y+3x-2y=64-14

13x=50

Divide by 13 on both side, we get

x=3.85

Now put the value of x in equation 2

5(3.85)+y=32

19.25+y=32

Subtract 19.25 on both side, we get

y=12.75

So, the solution of this system of equation is (3.85, 12.75).

To learn more about system of linear equation link is here

brainly.com/question/27664510

#SPJ4

6 0
1 year ago
A farmer sells corn that he grows in a square field. Each side of the field is 40 meters long , and he plans to extend the side
strojnjashka [21]
3t+40=A

he starts with 40, so you add that to 3 t (3 meters every year-t)
6 0
3 years ago
Read 2 more answers
Help please I needed!!!!
faust18 [17]

Answer:

Step-by-step explanation:

4. f(x) = √(x + 4)

f(5) = √(5+4) = √(9) = 3

5. g(x) = x^12 - x^5

  g(-1)=          (-1)^12 - (-1)^5

             1 - (-1) = 1 + 1 = 2

3 0
3 years ago
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