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Ray Of Light [21]
3 years ago
12

Solve for x: 5x/7 - 5 = 50

Mathematics
1 answer:
katrin [286]3 years ago
7 0
The answer is x =77  hope i help you
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Please help! functions operations. explain please
Lina20 [59]

Answer:

f^{-1}(x)=x^2-3

Step-by-step explanation:

Given f(x)=\sqrt{x+3}

Let y=\sqrt{x+3}

Interchange x and y

x=\sqrt{y+3}

Solve for y, by first squaring both sides

x^2=y+3

x^2-3=y

Hence

f^{-1}(x)=x^2-3

The last choice is correct

5 0
3 years ago
What is one third 1/3 plus one seventh 1/7?
taurus [48]
10/21 Is the answer
 
20 characters 
202020202
7 0
3 years ago
Read 2 more answers
Factor completely and then place the factors in the proper location on the grid a^2-a-20
Gnoma [55]

Answer:

(x-5)(x+4)

Step-by-step explanation:

We have the following quadratic equation

a^2-a-20

The factored expression will have the following form

(x+b)(x+c)

Where b and c are two real numbers which when added together result in -1, and multiplying them results in -20

b*c=-20\\b+c=-1

You can verify that the numbers that meet this condition are:

-5 and 4

Then the factors are:

(x-5)(x+4)

3 0
3 years ago
Marco wants to build house. United Building Company is offering the rate of $15.75 per square foot + an additional conference fe
marishachu [46]
Let us take the case of United Building Company First
Rate per square foot = $15.75
Conference fee taken per hour = $45.99
Total conferencing hours = 4 hours and 15 minutes
                                         = 4.15 hours
Total square feet of the house = 12226 square feet
Then
The total cost taken by the company = (15.75 * 12226) + ( 45.99 * 4.15) dollars
                                                            = 192559.5 + 190.86 dollars
                                                            = 192750.36 dollars
So the total amount taken by United Building Company is $192750.36 dollars
Now let us take the case of American Contracting Company
Rate per square foot taken = $12.46
Flat conferencing fee taken = $230
Then
The total cost taken by the company = (12.46 * 12226) + 230
                                                           = 152335.96 + 230 dollars
                                                           = 152565.96 dollars
So the total cost taken by the American Contracting Company is $152565.96.
8 0
3 years ago
Divide. Round to the nearest tenth. 8 divided by 6.403 Can some explain to me how I solve this?
klio [65]

Answer:

1.2

Step-by-step explanation:

Convert 8÷6.4038÷6.403 to a decimal.

1.249414331.24941433

Find the number in the tenth place 22 and look one place to the right for the rounding digit 44. Round up if this number is greater than or equal to 55 and round down if it is less than 55.

1.21.2

Need more help?

6 0
3 years ago
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