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katrin2010 [14]
2 years ago
6

6. If xy = 6 and x = 2, then x + y = ​

Mathematics
1 answer:
ANTONII [103]2 years ago
6 0
Xy = 6
x = 2

2y = 6

y = 6÷2

y = 3

x + y = (2) + (3) = 5
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5 0
3 years ago
Find the average speed in km/hr of 700m travelled in 5 minutes.
elena55 [62]
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M.
4 0
3 years ago
Write 1.14 × 10 to the third power in standard notation
Inessa [10]

Since it's 10^3, move the decimal over 3 places to the right. When you do that the answer should now be 1,140.


Hope this helps!

3 0
3 years ago
Read 2 more answers
PLEASE HELP<br> -7y = -91 <br> What does y equal
rusak2 [61]

Answer: I think i got it because -7y/-7 = -91/-7 equals 13 so y = 13

Step-by-step explanation:

4 0
3 years ago
Donna de paul is raising money for the homeless. She discovers that each church group requires 2 hours of let her writing and 1
Salsk061 [2.6K]

Answer:

x  =  7

y  =  3

z (max)  =  4950/3  =  1650

Step-by-step explanation:

Let call  

x numbers of church goup and

y numbers of Union Local

Then  

First contraint

2*x + 2*y ≤ 20

Second one

1*x + 3*y ≤ 16

Objective Function

z = 150*x + 200*y

Then the system is

z = 150*x + 200*y To maximize

Subject to:

2*x + 2*y ≤ 20

1*x + 3*y ≤ 16

x ≥ 0 y ≥ 0

We will solve by using the Simplex method

z - 150 *x - 200*y = 0

2*x + 2*y + s₁ = 20  

1*x + 3*y + 0s₁ + s₂ = 16

First Table

z           x          y          s₁           s₂          Cte

1        -150    -200       0            0     =      0

0          2         2           1            0     =    20

0          1          3          0            1      =     16

First iteration:

Column pivot   ( y column ) row pivot (third row) pivot 3

Second table

z           x                y          s₁           s₂                Cte

1       -250/3           0          0         200/3    =    3200/3

0      - 4/3               0          -1           2/3       =    -20/3

0         1/3               1            0           1/3       =    -20/3

Second iteration:

Column pivot  ( x column ) row pivot  (second row)  pivot  -4/3

Third table

z           x                y          s₁           s₂                Cte

1            0               0      750/12    700/6    =   4950/3

0            1                0        3/4          -1/2     =    7

0            0                1         -1/4          1/2     =  9/3

5 0
3 years ago
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