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alexandr402 [8]
3 years ago
15

.Given: 3(x-4)=2x+7

Mathematics
2 answers:
never [62]3 years ago
8 0
 3(x-4)=2x+7 the answer is going to be x-19
vladimir1956 [14]3 years ago
6 0

Answer:

Distributive Property

Step-by-step explanation:

3(x-4)=2x+7

Using Distributive property on left hand side we get

3*x-3*4 = 2x+7

3x-12=2x+7

Now we bring all the terms to one side of the equation, make sure we change sign while moving them to other side of =

3x-12-2x-7=0

Now bring the terms with x together and constant terms also

3x-2x -12-7=0

Simplifying the above polynomial

x-19=0

Now we add 19 on both sides

x-19+19=0+19

x-0=19

Hence x=19

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A climber on Mt Everest is 6000 meters from the start of his trail and at elevation 8000 meters above sea level. At x meters fro
sergeinik [125]

Answer:

h'(x) = 0.6 and Δx = 1 and 2

h(6001) = h(6000) + h'(6000)(1) = 8000 +0.6 = 8,000.6

h(6002) = h(6000) + h'(6000)(2) = 8000 + 0.6 (2) =8000 +1.2 = 8001.2

Explanation below:

Step-by-step explanation:

Based on the information given we have that when the climber is 6000 meters from the start, his elevation is 8000 meters above sea level.

We know that the function for elevation is given by h(x) where x is the number of meters from the start.

Therefore, h(6000) = 8000.

We also know that the derivative of a function tells us the reason of change at some point (or how fast a function is changing near that point). For this problem we have that h'(x) = 0.6. (<u>meaning that the elevation increases in 0.6 meters for every meter they hike further nearby the 6000 meters</u>)

We need to use the derivative at a point to estimate values of the function at nearby points

We're going to use h'(x)= 0.6. Δx= 1

h(6001) = h(6000) + h'(6000)(1) = 8000 +0.6 = 8,000.6

Therefore h (6001) = 8,000.6

Now for h'(x)= 0.6. Δx= 1

h(6002) = h(6000) + h'(6000)(2) = 8000 + 0.6 (2) =8000 +1.2 = 8001.2

Therefore h(6002) = 8001.2

6 0
3 years ago
What is the y-intercept of the line whose equation is 2x-3y=-6
Irina-Kira [14]

Answer:

(0, -2)

Step-by-step explanation:

Step 1: Write equation in slope-intercept form

-3y = 6 - 2x

y = -2 - 2/3x

Step 2: Find y-int

y = -2 -2/3(0)

y = -2

(0, -2)

6 0
3 years ago
Help me pls- I'll give u 55 points &lt;3
Juli2301 [7.4K]

Answer:

3

Step-by-step explanation:

5 0
3 years ago
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ollegr [7]
I think it’s seventy five
5 0
3 years ago
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Lori was paid a 15 percent commission for the home audio system that she sold. The electronics store had marked up the price of
svlad2 [7]

Answer:

$63.36

Step-by-step explanation:

The home audio system costs $264 wholesale.

The system's price had been increased by 60 percent at the electronics retailer.

Consequently, the increased cost is 60/100x264=$158.40.

The audio system's total cost is now $422.40 (264 + 158.40).

Given that Lori received a commission of = 15% on $422.40, her commission is now (15/100) x 422.40

= $63.36

3 0
2 years ago
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