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kirill [66]
3 years ago
6

Use substitution to solve each of the following pairs of simultaneous equations.

Mathematics
2 answers:
Firlakuza [10]3 years ago
8 0
Part a, hopefully it is right
Ronch [10]3 years ago
6 0

Answer:

I will go for a part the rest You can do by yourself

Step-by-step explanation:

Multiply the second equation to get same amount of x in both equations

2x=2-3y/2

multiply both equations by 2 to get rid of the fraction in second equation

4x+14y=34

4x=4-3y

subtract equation(2) from equation(1)

14y=30+3y

11y=30

y=30/11, x=-23/22

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Answer:

less than

Step-by-step explanation:

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7 0
3 years ago
CAN SOMEBODY PLEASE HELP ME
Phantasy [73]

Answer:

x and y are both equal to 57.5°

Step-by-step explanation:

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7 0
2 years ago
1.<br> | 3x +21<br> a. Equation<br> 6x - 60<br> b, Value of x<br> c. Angle Measures
navik [9.2K]

Answer:

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4 0
2 years ago
Thomas and Pablo began arguing about who did better on their tests, but they couldn't decide who did better given that they took
Shkiper50 [21]

It should be noted that the z score for Thomas test grade is 0.237.

<h3>How to illustrate the information?</h3>

From the information, Thomas took a test in Social Studies and earned a 74.8 and there is the fact that all the students' test grades in the Social Studies class had a mean of 72.6 and a standard deviation of 9.3,

Therefore, the z score for Thomas test grade will be:

= Test score - Mean / Standard deviation

= 74.8 - 72.6 / 9.3

= 0.237.

Therefore, it should be noted that the z score for Thomas test grade is 0.237.

Learn more about standard deviation on:

brainly.com/question/12402189

#SPJ1

Thomas and Pablo began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Thomas took a test in Social Studies and earned a 74.8, and Pablo took a test in Science and earned a 64.1. Use the fact that all the students' test grades in the Social Studies class had a mean of 72.6 and a standard deviation of 9.3, and all the students' test grades in Science had a mean of 61.1 and a standard deviation of 9.8 to answer the following questions.

Calculate the z score for Thomas test grade.

4 0
1 year ago
Cant seem to solve this problem, help needed.
Georgia [21]

Answer:

c

Step-by-step explanation:

3 0
3 years ago
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