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pshichka [43]
3 years ago
15

mr . owns enough money to pay five workers in 12 days if he adds 5 where workers for how long to get paid them at the same rate​

Mathematics
1 answer:
Hatshy [7]3 years ago
4 0

5      10

12      x

Cross multiply = (10 ×  12) / 5 = \frac{120}{5} = 24 days

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Find the solutions of the system y = –2x – 1 and y = 3–x–1. What are the x-coordinates of the solutions? Choose all that apply
Alexandra [31]
Y = -2x - 1
y = 3 - x - 1......y = 2 - x

2 - x = -2x - 1
-x + 2x = -1 + 2
x = 1 <==
7 0
3 years ago
You invested money in two funds. Last year, the first fund paid a dividend of 9% and the second a dividend of 3%, and you receiv
pishuonlain [190]

Answer: $7800 was invested at 9%

$5900 was invested at 3%

Step-by-step explanation:

Let x represent the amount invested in the fund that paid a dividend of 9%.

Let y represent the amount invested in the fund that paid a dividend of 3%.

Last year, the first fund paid a dividend of 9% and the second a dividend of 3%, and you received a total of $879. This means that

0.09x + 0.03y = 879- - - - - - - - - 1

This year, the first fund paid a 10% dividend and the second only 1%, and you received a total of $839. It means that

0.1x + 0.01y = 839 - - - - - - - - - -2

Multiplying equation 1 by 0.1 and equation 2 by 0.09, it becomes

0.009x + 0.003y = 87.9

0.009x + 0.0009y = 75.51

Subtracting, it becomes

0.0021y = 12.39

y = 12.39/0.0021

y = 5900

Substituting y = 5900 into equation 1, it becomes

0.09x + 0.03 × 5900 = 879

0.09x + 177 = 879

0.09x = 879 - 177

0.09x = 702

x = 702/0.09

x = 7800

4 0
3 years ago
What is the rate of change of the function?
Gnoma [55]

Answer:

The answer would be negative 1

Step-by-step explanation:

The reason why it is negative one is because you line them up and yeah.

3 0
2 years ago
Find the domain for the rational function f of x equals quantity x plus 1 end quantity divided by quantity x minus 2 end quantit
Elena L [17]

Answer:

(- \infty, 2), (2, \infty)

Step-by-step explanation:

Given the function:

f(x) = \dfrac{x+1}{x-2}

To find:

Domain of the function.

Solution:

First of all, let us learn about definition of  domain of a function.

Domain of a function is the valid input values that can be provided to the function for which output is defined.

OR

Domain of a function f(x) are the values of x for which the output f(x) is a valid value.

i.e. The function does not tend to \infty or does not have \frac{0}0 form.

So, we will check for the values of x for which f(x) is not defined.

For value to tend to \infty, denominator will be 0.

x-2\neq 0 \\\Rightarrow x \neq 2

So, the domain can not have x = 2

Any other value of x does not have any undefined value for the function f(x).

Hence, the answer is:

\bold{(- \infty, 2), (2, \infty)}     [2 is not included in the domain].

7 0
3 years ago
The product of a number and three is four less than 60. Find the number.
pantera1 [17]

hii!

n(n-4) = 60

n^2 - 4n - 60 = 0

( n   -  10  )(n   +     6  ) = 0

n-10 = 0 ---> n = 10 ---> 10*(10-4) = 10*6  = 60

n+6 = 0 --> n = -6 ---> -6 * (-6-4) = -6 * -10 = 60

5 0
3 years ago
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