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STatiana [176]
2 years ago
12

Evaluate 3600/40 what is it Evaluate

Mathematics
1 answer:
dangina [55]2 years ago
4 0

Answer:

90

Step-by-step explanation:

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Solve the following system of equations for all three variables.
nignag [31]
  5x - 2y + 1z = 8 ⇒   5x - 2y + 1z = 8
-9x + 2y + 2z = 5 ⇒ -9x + 2y + 2z = 5
-9x -  2y -  5z = 4             -4x + 3z = 13

 5x -  2y + 1z = 8
-9x + 2y + 2z = 5 ⇒ -9x + 2y + 2z = 5
-9z -  2y -  5z = 4 ⇒ -9x -  2y -  5z = 4
                                        -18x - 3z = 9

     -4x + 3z = 13
    -18x - 3z =   9
           -22x = 22
            -22    -22
                x = -1
    -18x - 3z = 9
-18(-1) - 3z = 9
       18 - 3z = 9
     - 18       - 18
             -3z = -9
              -3     -3
                z = 3

    5x - 2y + z = 8
5(-1) - 2y + 3 = 8
     -5 - 2y + 3 = 8
     -2y - 5 + 3 = 8
           -2y - 2 = 8
                + 2 + 2
                -2y = 10
                 -2     -2
                   y = -5
          (x, y, z) = (-1, -5, 3)
6 0
3 years ago
If y=3 when x=9 find x when y=1<br> &amp; if y=2 when x=0.5 find y when x=3
hram777 [196]
I got -19/655 and i know for sure this isnt the correct answer.
4 0
3 years ago
Two trains left the station traveling in opposite directions. The distance Train A traveled is modeled by the function d(t)=81t
stira [4]

Answer:

Option A -  The distance Train A traveled in 1 h is equal to the distance Train B traveled in 1 h.

Step-by-step explanation:

Given : The distance Train A traveled is modeled by the function d(t)=81t

where d represents distance in miles and t represents time in hours.

To find : How does the distance Train A traveled in 1 hour compare to the distance Train B traveled in 1 hour?

Solution :

Distance traveled by Train A in 1 hour is

d(t)=81t

d(t)=81(1)=81

Distance traveled by Train B in 1 hour is

d(t)=81t

d(t)=81(1)=81

or for B, we have 324 miles in 4 hours. If that is at a constant speed, it travels 324/4 = 81 miles in one hour

Therefore, The distance Train A traveled in 1 h is equal to the distance Train B traveled in 1 h.

Hence, Option A is correct.


8 0
2 years ago
Please help meeee:(((( give explanation
choli [55]

Answer:

5 ( x – 3) = – 3 (2x+5)

5x – 15 = – 6x – 15

5x +6x = – 15 +15

11 x = 0

x =0/11

x =0

I hope I helped you^_^

8 0
2 years ago
you read online that a 15 ft by 20 ft brick patio would cost about 2, 275 to have professionally installed. estimate the cost of
hoa [83]
That would cost roughly $5,717.83
8 0
3 years ago
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