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prisoha [69]
3 years ago
11

By elimination method solve: 217x+131y=913 and 131x+217y=827

Mathematics
1 answer:
malfutka [58]3 years ago
3 0
◆ Linear equations in two Variables ◆

Hey !!

Check the attachment.
Hope it helps you :)

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Help me please!!!
34kurt

Step-by-step explanation:

sin(2x) + cos(3x)

Use double angle formula sin(2x) = 2 sin x cos x.

Use triple angle formula cos(3x) = 4 cos³x − 3 cos x.

Substitute:

2 sin x cos x + 4 cos³x − 3 cos x

3 0
2 years ago
On a quiz show, Linda won $10 less than three times as much as Charlie. If Linda won $800, how much did Charlie win?
PilotLPTM [1.2K]

Using a system of equations, it is found that Charlie won $270.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are:

  • Variable x: Amount earned by Linda.
  • Variable y: Amount earned by Charlie.

Linda won $10 less than three times as much as Charlie, hence:

x = 3y - 10

Linda won $800, hence the amount won by Charlie is found as follows:

800 = 3y - 10

3y = 810

y = 810/3

y = 270

More can be learned about a system of equations at brainly.com/question/24342899

#SPJ1

7 0
1 year ago
A triangle in Quadrant I is reflected twice, first over the y-axis and then over the x-axis. The new triangle, in Quadrant III,
denpristay [2]

Answer: rotation

Step-by-step explanation:

5 0
2 years ago
John has 3 apple he gives 2 to his brother. How many apples does he have?
Aliun [14]

Answer:

He has 1 apple left! :>

6 0
3 years ago
Read 2 more answers
Find the remainder when f(x) = 2x3 − 12x2 + 11x + 2 is divided by x − 5.
Likurg_2 [28]

Answer: I couldn’t find your answer to this mathematics question, try a different question to this mathematics answer so I can get it.

Step-by-step explanation:

6 0
3 years ago
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