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Alex73 [517]
2 years ago
7

A metal strip is being installed around a rectangular workbench that is 9 feet long and 4 feet wide. If the stripping costs ​$5

per​ foot, find the total cost of the stripping.
Total cost=
Mathematics
1 answer:
Alborosie2 years ago
8 0

If the metal strip goes around the bench, then we are looking for the perimeter.

P = 2L + 2W

P = 2(9) + 2(4)

P = 18 + 8

P = 26 feet

Then, we know that the stripping costs $5 per foot, and we need 26 feet of the stripping.

26 x 5 = 130

Total cost = $130

Hope this helps!

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What is the answer to the equation 4a+26-9a-17=26?
podryga [215]
First you have to put all of your common numbers together. 4a and 9a go together. You then subtract those because 9 is negative (-9). Then you get -5a. Now move on to your other numbers. You have 26 and 17. 17 is negative as well (-17), so you subtract it from 26. That gives you 9.
Your new equation is -5a + 9 = 26
Now you subtract 9 from both sides. Your positive (+9) will cancel out with your negative (-9). Then subtract it from 26. 9 minus 26 is 17. 
Now your equation is -5a = 17
Since it's negative, you're going to add it (5) to both sides. 
Your 5's cancel out, and 17 + 5 is 22. 
a = 22
22 is the answer 

5 0
3 years ago
Y=3x-4;y=4+x substitution
Gnesinka [82]

Answer:

y=54

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Pls help<br><br> Given: △ABC, CM⊥ AB, BC = 5, AB = 7<br> CA = 4 sqrt(2)<br> Find: CM
babymother [125]

Answer:

The general plan is to find BM and from that CM. You need 2 equations to do that.

Step One

Set up the two equations.

(7 - BM)^2 + CM^2 = (4*sqrt(2) ) ^ 2 = 32

BM^2 + CM^2 = 5^2 = 25

Step Two

Subtract the two equations.

(7 - BM)^2 + CM^2  = 32

BM^2 + CM^2         = 25

(7 - BM)^2 - BM^2 = 7               (3)

Step three

Expand the left side of the new equation labeled (3)

49 - 14BM + BM^2 - BM^2 = 7    

Step 4

Simplify And Solve

49 - 14BM = 7              Subtract 49 from both sides.

-49 - 14BM = 7 - 49

- 14BM = - 42              Divide by - 14

BM = -42 / - 14

BM = 3

Step  Five

Find CM

CM^2 + BM^2 = 5^2

CM^2 + 3^2 = 5^2        Subtract 3^2 from both sides.

CM^2 = 25 - 9            

CM^2 = 16                     Take the square root of both sides.        

sqrt(CM^2) = sqrt(16)

CM = 4    < Answer

Step-by-step explanation:

6 0
2 years ago
Six less than the product of 7 and a number equals<br> 5.
VARVARA [1.3K]

Answer:

x = 11/7 or 1.57

Step-by-step explanation:

let the number be x

now :

=》the product of 7 and the number

  • 7 × x = 7x

=》6 less than the product

  • 7x - 6

=》now, we know :

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  • 7x = 6 + 5

  • 7x = 11

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7 0
2 years ago
Read 2 more answers
find two consecutive odd integers such as 65 more than the lesser is four times the greater. The lesser consecutive odd integer
Alex_Xolod [135]

Answer: Lesser = 19, Greater = 21


See picture reply.




6 0
3 years ago
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