MATHEMATICS COLLEGE

Solve the following equation: 3x - 7 = 9 + 2x.
A)12
B)16
c)20
d)24

Answers

Answer 1
Answer: answer:
B

the equation:
3x-7=9+2x

step 1: subtract 2x from both sides
x-7=9

step 2: add 7 to both sides
x=16
Answer 2
Answer:

Answer:

Option B

Step-by-step explanation:

3x - 7 = 9 + 2x\n\n3x-7+7=9+2x+7\n\n3x = 9 + 7 + 2x\n\n3x=16+2x\n\n3x-2x=16+2x-2x\n\n\boxed{x=16}

Hope this helps!

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The difference of two times a number and three

Answers

Answer:

2n - 3

Step-by-step explanation:

The difference of implies a subtraction between two terms.  Two times a number, implies some number being multiplied by two.  Hence, we can build the expression:

2n - 3

Where n represents the unknown number.

Cheers.

Use the product rule to find the derivative. 3) f(x)=(3x-3)(5x+ 1)

Answers

Answer:

30x -12

Step-by-step explanation:

the product rule is f(x)g'(x) + g(x)f'(x)

in this case f(x) = 3x-3 and g(x) = 5x+1.  So we can just plug in we are going to find the derivative of each here.

f'(x) = 3 g'(x) = 5  Let me know if you don't know how I found the derivative of each.

Now we plug in.

f(x)g'(x) + g(x)f'(x)

(3x-3)5 + (5x+1)3

15x - 15 + 15x + 3

30x -12

You can further factor it but I'm gonna leave it like this.

A missile uses an internal computer clock to measure time in tenths of a second. The missile guidance system needs the time from launch, in seconds, in order to calculate its distance from the launch site. It obtains this by multiplying the computer clock time by 0.1. So, for example, a reading of 50 tenths of a second is 5 seconds. For one particular missile system, the conversion factor of 0.1 is stored in 8 bits as the binary number 0.000110012.The missile’s internal computer clock shows 200 tenths of a second. Convert this to seconds using your result from Part (i) of this question. Do not round your answer. The missile guidance system now records that it has travelled for this number of seconds.

Answers

Using proportions, it is found that the missile's internal computer clock is of 20 seconds.

  • According to the information given, this question can be solved by proportions, using a rule of three.

50 tenths of a second is equivalent to 5 seconds, and we want to find the equivalent to 200 tenths of a second, thus, the rule of three is:

50 tenths - 5 seconds

200 tenths - x seconds

Applying cross multiplication:

50x = 5(200)

50x = 1000

x = (1000)/(50)

x = 20

The missile's internal computer clock is of 20 seconds.

A similar problem is given at brainly.com/question/24372153

If the legs of a right triangle measure 10 meters and
24 meters, how long is the hypotenuse?

Answers

Answer:

26 meters

Step-by-step explanation:

Sara has $180 to spend on a mixture of oranges and bananas. The oranges cost $3 per pound and the bananas cost $2 per pound. What equation can she use to graph a line showing the different amounts of oranges and bananas she can buy for $180?Explain what does each elements of the equation represent.

pleasee guys i need help

Answers

Answer:

365

Step-by-step explanation:

2+3+180+180=

3/5 meters per 9 minutes.
What is the unit rate in minutes per meter?

Answers

Answer:

.06 meters

Step-by-step explanation:

3/5=.6

.6/9=.06
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