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Nadya [2.5K]
3 years ago
5

What is -7/2n=49 how would you find the answer to this fraction

Mathematics
2 answers:
Advocard [28]3 years ago
7 0
-7/2n = 49

First, we need to simplify 7/2n to 7n/2. This will make the problem easier to solve.
- \frac{7n}{2} = 49

Second, since we are trying to get the variable (x) by itself on one side of the problem to equal something, we can start off by multiplying each side by 2. This will get rid of our fraction.
-7n = 49 \times 2

Third, we can go ahead and multiply 49 × 2, which is easily done by a calculator, etc. The answer to 49 × 2 is 98.
-7n = 98

Fourth, let's now divide each side by -7. This will recreate a fraction but we can get our answer very easily from now. Go ahead and put the negative sign in front of the fraction as well.
n =  -\frac{98}{7}

Fifth, our last step is to simplify the fraction. Basically, ask yourself 'what can be multiplied by 7 to equal 98? Or, 98 ÷ 7. The answer either way is 14 (don't forget your negative).
n = -14

Answer: \fbox {n = -14}
Crazy boy [7]3 years ago
5 0

I would ...

1).  Multiply each side of the equation by  2 .

2).  Divide each side of the new equation by  -7 .

3).  Take a step back and admire my correct solution of  -14 .

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What are the known solutions to f(x)=g(x)
Black_prince [1.1K]

Answer:

<em>1 and 9</em>

Step-by-step explanation:

<u>Common Solutions to Functions</u>

Let f(x) and g(x) be any type of function. When we need to find values of x such that f(x)=g(x), we usually set up the equation for each of them and solve it for x by any available algebraic or approximate method.

In this situation, we are not given the explicit expression of any of the functions, but the table of values for each one of them. We have to take a look of the values of x for which f and g are the same.

A closer look at the table reveals that f(x)=g(x) for two values of x:

for x=1, f(1) = 14 , g(1) = 14

for x = 9, f(9) = 6, g(9) = 6

The answers are 1 and 9

8 0
3 years ago
A construction worker is looking at blueprints drawn to a 1/20 scale and notices that a wall is 0.5 feet by 0.25 feet. He claims
Gnoma [55]

Answer:

incorrect

Step-by-step explanation:

we are finding area which is squared, or we can put it in an equation, (0.5*20)*(0.25*20) or 0.5*0.25*20^2 which equals 50      but (0.5*0.25)*20 only equals 2.5    therefor he is incorrect and the correct answer would be 20^2 or 400 times the area.

hope this helps :)

5 0
3 years ago
Drove 50 km on 6 L of gasoline. Which proportion would help determine how far she can travel on a full 40 L tank of gasoline?
RoseWind [281]

Answer:

50 : 6 = x : 40 is the proportion


Step-by-step explanation:

50 : 6 = x : 40

x = 50 * 40 : 6

x = 333.33

--------------------------

check

50 : 6 = 333.33 : 40

8.33 = 8.33

The answer is good






3 0
3 years ago
Read 2 more answers
The table shown below represents a function. Which of the following values could not be used to complete the table?
Andreyy89

Answer:

The answer is -5......Please mark me as a brainlist..

5 0
3 years ago
A certain medicine is given in an amount proportional to a patient's body weight. Suppose a patient weighing 104 pounds requires
Olegator [25]
104 / 169 = x / 224.25......104 lbs to 169 mg = x lbs to 224.25 mg
cross multiply because this is a proportion
(169)(x) = (104)(224.25)
169x = 23322
x = 23322 / 169
x = 138 lbs <==
8 0
3 years ago
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