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Nadusha1986 [10]
2 years ago
13

Jeanette obtained 32% for her statistics test, which was out of a total of 300 marks. How much should she score in the computer

science test that is out of 200 marks in total if she is to get a proportionally weighted average of 46%?
Mathematics
1 answer:
Fiesta28 [93]2 years ago
3 0

Answer:

134

Step-by-step explanation:

So assuming x is the score on the computer science exam, it would take 300*0.32+x=500*0.46=230 to get x=134

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What is the area of this parallelogram? 10.35 cm² 12.5 cm² 20.25 cm² 30.6 cm² Parallelogram A B C D is composed of a square and
Taya2010 [7]

Answer:

30.6 cm²

Step-by-step explanation:

The area of the parallelogram is simply the sum of the areas of the component three shapes - the square and the two triangles.

Area of square = 4.5 cm × 4.5 cm = 20.25 cm²

Area of two triangles = 2 ×(1/2) × 2.3 cm × 4.5 cm = 10.35 cm²

Area of parallelogram =  20.25 cm² + 10.35 cm² = 30.6 cm²

5 0
3 years ago
Read 2 more answers
-13r + -4r + 14r -9 =-15
deff fn [24]

Answer:

2

Step-by-step explanation:

-13 x 2 = -26

-4 x 2 = -8

14  x 2 = 28

-26 + -8 + 28 +-9 = -15

have a nice day and mark me brainliest! :)

8 0
3 years ago
Read 2 more answers
The measure of angle A is 4 degrees greater than the measure of angle B. The two angles are complementary. Find the measure for
svetlana [45]
Given: 
Angle A is 4 degrees greater than the measure of Angle B. Both angles are complementary

Complementary angles have a sum of 90°

Angle A = x + 4° ; Angle B = x

x + 4° + x = 90°
2x = 90° - 4°
2x = 86°
x = 86° ÷ 2
x = 43° ANGLE B.

Angle A = x + 4° ⇒ 43° + 4 = 47°

Given:
Angle D is 5 times the measure of Angle E. These angles are supplementary. This means that their sum is 180°

Angle D = 5x ; Angle E = x

5x + x = 180°
6x = 180°
x = 180° ÷ 6
x = 30°  Angle E.

Angle D = 5x = 5(30) = 150°
6 0
3 years ago
Read 2 more answers
What are the relative frequencies, to the nearest hundredth, of the rows of the two way table?
Nookie1986 [14]

Answer:            A         B

Group A        0.25      0.75

Group B        0.45      0.55

Step-by-step explanation:

Since we have given that

Number of people of A in Group A = 15

Number of people of B in Group A = 45

Number of people of A in Group B = 20

Number of people of B in Group B = 25

Total number of people in Group A = 15+45 = 60

Total number of people in Group B = 20+25 = 45

So, Relative frequencies will be given  below:

Relative frequency of A in Group A is given by

\frac{15}{60}=0.25

Relative frequency of B in Group A is given by

\frac{45}{60}=0.75

Relative frequency of A in Group B is given by

\frac{20}{45}=0.45

Relative frequency of B in Group B is given by

\frac{25}{45}=0.55

Hence,             A         B

Group A        0.25      0.75

Group B        0.45      0.55

5 0
3 years ago
Homework is 25% of my grade, quizzes are 25% of my grade, and tests are 50% of my grade. I get a 100% on all 4 of my homework as
Arisa [49]

Answer:

25+25+50=100

no quiz

0% on test

for quiz,25% is lost

for test,50% is lost

50+25=75

100-75=25

answer is 25%

5 0
2 years ago
Read 2 more answers
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