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Anna11 [10]
3 years ago
10

College Algebra

Mathematics
1 answer:
Julli [10]3 years ago
3 0
765
you divide the 2 boards by half so now you know one board is 153 and multiple that by 5 and get 765
You might be interested in
Which expression has the same value as 37.4 - 54.9?
GrogVix [38]

Answer:

D

Step-by-step explanation:

In the original expression =  37.4 - 54.9 = -17.5

So, we have to solve all the equations but 1 of them has to equal to -17.5

A) -54.9 + (-37.4) = -92.3

   Remove parentheses

   = -54.9 - 37.4

Subtract the numbers

    -92.3

B) 54.9 - 37.4 = 17.5

Since 54.9 is greater than 37.4 just subtract normally

 4   14

  5  4.   9                < ------- Line up the decimal points like this

-  3  7.   4                <---------  Subtract the decimals

-----------------

   1   7   .    5       <---------- This is the final answer to B.                    

 

C)  37.4 - (- 54.9) = 92.3

   Change the sign to addition

        =37.4 + 54.9

  Add the numbers normally

  54.9

+ 37. 4

--------------

  92.3

D)  37.4 + (-54.9) = -17.5

   Change the sign to subtraction

      =    37.4 - 54.9

Subtract them normally (but as you can see you are subtracting a smaller number from a larger number so heres a trick that you can use switch the equation by putting the larger number in first like this....)

54.9 - 37.4 = 17.5 (REMEMBER the answer is not 17.5 because the original equation of D is reversed  37.4 - 54.9 so in this case your answer should be

- 17.5)

37.4 - 54.9 = -17.5

Your final answer is D because it matches 37.4 - 54.9.

Hope this helps!

3 0
3 years ago
Read 2 more answers
What is the value of f(x) = 3x -12 for anx = 9
pshichka [43]

Answer:

15

Step-by-step explanation:

f(x) = 3x -12 for x = 9

f(9) = 3(9) -12

27-12

15

6 0
3 years ago
3x-9=-21 equation in words
sergeinik [125]
'nine less than three times a number is negative twenty-one.'
5 0
3 years ago
The figure it made of a square and right triangles. Find the area<br><br><br>PLZ help me
nevsk [136]

Answer:

720 inches squared

Step-by-step explanation:

for the square:

a = 24 x 24 = 576 inches squared

for the triangle:

36-24 =

a = 12 x 24 / 2

= 144 inches squared

576 + 144 = 720 inches squared

5 0
3 years ago
Read 2 more answers
A linear equation in two variables, x and y, is an equation that can be written in the form _________
borishaifa [10]

Answer:

y=mx+b

Step-by-step explanation:

4 0
2 years ago
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