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alukav5142 [94]
2 years ago
13

Solve for x: 3x - 5 = -2x + 40

Mathematics
1 answer:
Gre4nikov [31]2 years ago
5 0

Answer: x = 15

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    3*x-5-(40)=0

You might be interested in
-11=(x-3)÷2 what is the solution for x
e-lub [12.9K]

Answer:

          -19

Step-by-step explanation:

                     ~ Distribute:

               - 11 = 1 / 2 x + -3 / 2

                        ~ Flip the equation:

                  1 / 2 x + -3 / 2 = -11

                          ~ Use transposition method:

                     (take -3 / 2 to the other side)

                       1 / 2 x = -11 - (-3 / 2)

                                  = -19 / 2

                                x = -12 / 2 * 2

                                    = -19

Hope this helped

Wishing u a gr8 day

:D

3 0
2 years ago
Greta currently works 45 hours per week and earns a weekly salary of $729. She
marissa [1.9K]

Answer:

Greta will be earning 3.6/h more at her new job.

Step-by-step explanation:

To find the difference subract Greta‘s salary from her current job from Greta’s salary from her future job.

To find Greta’s salary (numerator) at her future job divide her current weekly salary ($729) by 45h then multiply that answer (16.2) by the increase in salary 10% or 1.1. You should end up with $17.82- this is your numerator. To find the denominator divide her current hours (45h) by 45 then multiply that answer (1) by 0.9 which is the 10% decrease in hours. Now you have a fraction ($17.82/0.9) then multiply that fraction by 1.1/1.1 to get the denominator to 1 hour so you can subtract the fractions. You should end up with $19.8/h.

Now subtract Greta’s current salary ($16.2/h)- you just take the numbers from the first part before you increase or decrease- from her future salary ($19.8/h), you will end up with 3.6/h.

I was challenged to write this in a single equation:

[((($729\45h)x1.1)/((45h\45)x0.9))x1.1/1.1]-[($729\45h)/(45h\45)]

=$3.6/h

/ means a fraction bar

\ means division

Also I am just a student so please tell me if you find any mistakes I could fix or any suggestions to make this a better explanation, and if you have any questions ask away.

4 0
2 years ago
A circular piece of glass has a radius of 1.2 meters. The glass sells for $7.10 per square meter. What is the total cost of the
blagie [28]

Answer:The total cost is $8.52.

7 0
3 years ago
Read 2 more answers
-5(3e - 2) < - 2(6e + 7)
krok68 [10]
This is false, -5(3e-2) is not less than -2(6e+7) 
8 0
2 years ago
Read 2 more answers
Two rectangles are similar. The ratio of their corresponding sides is 1:4.
larisa [96]

ratio of perimeter is the same as ratio of sides so perimeter would be 1:4

since area is in square units you need to square the ratio (1:4)^2 which is 1:16

7 0
3 years ago
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