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Sergeu [11.5K]
3 years ago
5

Helpppppppp please it’s due today

Mathematics
1 answer:
yanalaym [24]3 years ago
8 0

Answer:

Option B, would be the correct option as she sets it in the attic window. I hope this helps you! :)

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How would you choose to reduce the system shown to a 2 × 2? Explain why you would choose this approach. –3x + y – 2z = 10 (1) 5x
gladu [14]
-3x + y - 2z = 10      |* -1
3x  -  y  +2z = -10
5x  -2y -2z =  12 
---------------------------      I add these equations   term by term 
8x  - 3y  = 2 

-3x  + y - 2z =10                       ⇒  -3x  + y   - 2z =10
x     -y    +z = 23         | *2              2x   - 2y + 2z = 46
                                                   -----------------------------  I add these eq.
                                                       -x  -y  = 56

8x  - 3y  = 2 
-x   -y    = 56

this is the system after i reduce it ( it has only two variables x and y)




4 0
3 years ago
Read 2 more answers
Ross drives 408 miles in 6 hours, If Ross continues to drive at the same rate, how many miles can be drive in 18 hours?
Archy [21]
I believe the answer should be 1,224.
8 0
3 years ago
shirts are 25% off. the original price of one shirt is $12. what is the total cost, in dollars of a shirt at the sale price, inc
Natalka [10]

Answer:

$9.45

Step-by-step explanation:

1 - 0.12 = 0.88

12.60 * 0.88 = 9.45

You save $3.15

8 0
3 years ago
Find three consecutive odd integers such that three times the sum of the first and second is 3 more than 3 times the third
Rufina [12.5K]

Answer:

3, 5, 7

Step-by-step explanation:

1st number: (2k+1)

2nd number: (2k+3)

3rd number: (2k+5), k∈Z

3*[(2k+1) + (2k+3)] = 3 + 3*(2k+5)

3*(4k+4)=3+6k+15

12k+12=18+6k

6k=6

k=1

1st number: (2k+1) = 3

2nd number: (2k+3)=5

3rd number: (2k+5)=7

4 0
3 years ago
What is 8/10 x 8/21
ivann1987 [24]
8/10*8/21
= 64/210
= 32/105
5 0
4 years ago
Read 2 more answers
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