All categories

3 years ago

5.2412 2x+3y=-5 5x-y=-12

Mathematics

1 answer:

cupoosta [38]3 years ago

4 0

Answer: 5.2412 = 5.2412 = 2x + 3y = −5 = 2x + 3y = -5 = 5x − y= -12

You might be interested in

6 times a number is 16 less than the square of that number. Find the positive solution.

sashaice [31]

Answer:

x=8

Step-by-step explanation:

Let's say this mystery number is x.

6 times this x is 16 less than the square of x so we can write this as:

$6x = x^2 - 16$

We can then re-arrange this into a quadratic and simplify it so:

$x^2 -6x-16 =0$

$(x-8)(x+2)$

x=8, x=-2

And since the question is asking for the positive solution,
x=8

6 0

2 years ago

From 1960 to 1980, the consumer price index (CPI) increased from 29.6 to

Novay_Z [31]

B. CPI %age = 82.4 - 29.6 = 52.8 / 29.6 * 100 = 178%
0.14 * 178/100 = $0.249 / $0.25 hence answer is B

8 0

3 years ago

Consider a data set with at least three data values.suppose the highest value is increased by 10 and the lowest is decreased by

Evgen [1.6K]

Answer:

let ' x' be the number

the three data values x-5 , x ,x+10

Assume x value is 5

the data values are 0,5,10

Step-by-step explanation:

Explanation:-

let assume 'x' be the number

Given the highest value is increased by 10 , that is x+10

and also given the lowest value is decreased by 5 that is x-5

Final answer:-

now the sequence of given data x-5 , x , x+10

Example:-

am choosing 'x' value is 5

now the data values are 5-5 , 5, 5+10

0 , 5 , 15

8 0

3 years ago

Factor out the greatest common factor. If the greatest common factor is 1, just retype the

svet-max [94.6K]

2b + 6
2(b+3)

if you distribute 2(b+3), you get 2b+6

4 0

4 years ago

The variables y and x have a proportional relationship, and y = 15 when x = 3. What is the value of x when y = 4?

Akimi4 [234]

Answer:

$x=\frac{4}{5}=0.8$

Step-by-step explanation:

We have been given that the variables y and x have a proportional relationship, therefore, we can represent the relationship between x and y as: $y=kx$ , where k is proportionality constant.

Let us substitute x=3 and y=15 in above equation to find the value of k.

$15=k*3$

$k=\frac{15}{3}$

$k=5$

Now let us substitute k=5 and y=4 in our proportionality equation to find the corresponding value of x.

$4=5x$

$x=\frac{4}{5}$

$x=0.8$

Therefore, the value of x will be 0.8, when y equals to 4.

4 0

4 years ago