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AlexFokin [52]
3 years ago
12

Solve 2/x+12/x=7 A. 2 B.-2 C. 28 D.-28

Mathematics
1 answer:
Juliette [100K]3 years ago
3 0

\frac{2}{x}+\frac{12}{x}=7\\\frac{2+12}{x}=7\\\frac{14}{x}=7\\14=7x\\\frac{14}{7}=x\\x=\frac{14}{7}\\x=2

The answer is A. 2

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Combine each pair of equations solve the combined equation 3j +14=-5z-10j=5z
ArbitrLikvidat [17]

Given data:

The first equation is 3j +14=-5z.

The second equation is -10j=5z​ .

Add both the equations.

\begin{gathered} (3j+14)+(-10j)=-5z+5z \\ -7j+14=0 \\ 7j=14 \\ j=2 \end{gathered}

Substitute 2 for j in the first equation.

\begin{gathered} 3(2)+14=-5z \\ 20=-5z \\ z=-4 \end{gathered}

Thus, the value of j is 2 and z is -4.

3 0
1 year ago
Can u help me to answer 1-4? Please and thankyou
SVEN [57.7K]
1. ) 1 thru 9 are both natural numbers and whole numbers. 0 is a whole number, but not a natural number.

2.) 6...it is a natural number because it is a counting number and it is whole, it is a whole number and it is an integer as well. It is also rational because it can be turned into a fraction 6/1.

3.) -2 is a rational number because it can be turned into a fraction -2/1, but it is not a whole number because it contains a negative.

4.) That number would be 0
3 0
3 years ago
How does solving the equation arithmetically compare to solving an equation algebraically
IRISSAK [1]
In an arithmetic equation, there is no variable in the 'meat' of the equation(example: 5-5=0). In an algebraic equation, there is a variable in the meat of the equation(example: 5-x=0).
Hope this helps and please give brainliest!
4 0
3 years ago
1,000,000 divided by 6500 i will mark brainlest
Sveta_85 [38]

Answer:

153.846153846

Step-by-step explanation:

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( • . •) want this cookie?

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5 0
3 years ago
What is the probability
gulaghasi [49]

Answer: Last Option

P=0.4125

Step-by-step explanation:

In this case we have a uniform probability. In the graph the horizontal axis represents the possible values of the variable x and the vertical axis represents the probability P(x).

To calculate the probability that x is between 4.71 and 7.4 we calculate the area under the curve.

The horizontal length between 4.71 and 7.4 is:

7.4-4.1 = 3.3.

Then notice that the vertical length in this interval is 0.125.

Then the area of a rectangle is:

A = lw

Where l is the length and w is the width.

In this case we have to:

l = 3.3

w = 0.125

So

P = A = 3.3 * 0.125

P=0.4125

3 0
3 years ago
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