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solong [7]
3 years ago
8

A triangle has sides with lengths of 5x – 7,

Mathematics
1 answer:
Tom [10]3 years ago
4 0

Answer:

10x - 17

Step-by-step explanation:

Perimeter is the sum of all sides

5x - 7 + (3x - 4) + (2x - 6)

10x - 7 - 4 - 6

10x - 17

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Answer:

90 is ur anwser

Step-by-step explanation:

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3 years ago
What is the value of x in following system?<br> y=3x-5<br> 6x+3y=15
Simora [160]
I think x = 2, but im sorry if thats wrong
5 0
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Tricio mokes $9.00 an hour and works 40 hours a week. How much money does she earn in a year
nadezda [96]

Answer:

18,771 $

Step-by-step explanation:

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3 0
3 years ago
I need blank 1 and blank 2
lord [1]

Answer:

Blank 1: 40

Blank 2: 10

Step-by-step explanation:

You can start by representing the speed of the water as x and the speed of the dolphin as y, and writing an equation.

y+x=50

y-x=30

Adding these two equations together, you get:

2y=80

y=40 for the speed of the dolphin in still water. Now, you an use one of the previous equations to find the speed of the current.

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Hope this helps!

8 0
3 years ago
2. Change the following statements into coordinate points and then plot them!
GREYUIT [131]

Answer:

The points are (-1, 1), (2, 7), (1, -1), (3, 0)

Step-by-step explanation:

Let us solve the question

∵ f(x) = y

∴ The coordinates of the point are (x, y)

→ Let us use this fact to find the coordinates of each point

∵ f(-1) = 1

∴ x = -1 and y = 1

∴ The coordinates of the point are (-1, 1)

∵ f(2) = 7

∴ x = 2 and y = 7

∴ The coordinates of the point are (2, 7)

∵ f(1) = -1

∴ x = 1 and y = -1

∴ The coordinates of the point are (1, -1)

∵ f(3) = 0

∴ x = 3 and y = 0

∴ The coordinates of the point are (3, 0)

The graph is attached down

8 0
2 years ago
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