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3 years ago

If 3x – 9 = -2x + 16, then 7x=?

Mathematics

2 answers:

skad [1K]3 years ago

5 0

Answer:

The answer to this problem is x equals 14

Step-by-step explanation:

Tpy6a [65]3 years ago

4 0

Answer:

x= 5 , 7x = 35

Step-by-step explanation:

Well, first we need to find the value of x.

3x - 9 = -2x + 16

3x + 2x = 16 + 9

5x = 25

x = 5

So, we just need to multiple it by 7

x = 5

7x = 7*5

7x = 35

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2 years ago

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3 years ago

The city park is a square of land woth an area of 10,000 m^2. What is the length of the fence that encloses the park ?

Mekhanik [1.2K]

Answer:

The length of the fence that encloses the park is 400 m

Step-by-step explanation:

step 1

Find the length of the square city park

we know that

The area of a square is

$A=b^2$

where

b is the length side of the square

we have

$A=10,000\ m^2$

substitute and solve for b

$10,000=b^2$

take square root both sides

$b=100\ m$

step 2

Find out the length of the fence that encloses the park

we know that

The length of the fence is equal to the perimeter of the square city park

The perimeter of the square is

$P=4b$

we have

$b=100\ m$

substitute

$P=4(100)=400\ m$

therefore

The length of the fence that encloses the park is 400 m

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3 years ago

The manager of a museum wants to conduct a survey to determine how people view their experience at the museum. Which would give

dolphi86 [110]

<span>"conducting the survey as customers exit the museum"

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4 years ago

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5 0

3 years ago