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Lana71 [14]
2 years ago
12

X + y - z = - 2, 2x - y + z = 8, - x + 2y + 2z = 10

Mathematics
1 answer:
Maurinko [17]2 years ago
3 0

Answer:

a

Step-by-step explanation:

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Write down a fraction that lies halfway between 1/3 and 1/2
lorasvet [3.4K]
You need to find a common denominator. I would use 6 first.

1/3 is equivalent to 2/6. 1/2 is equivalent to 3/6. It is still difficult to find the median between the two so I would try 12 as a common denominator.

1/3 is equivalent to 4/12, and 1/2 is equivalent to 6/12. Therefore, the halfway point would be:

5/12
5 0
4 years ago
Dorothy and Rosanne are baking cookies for a party. Working alone, Rosanne can finish the cookies in 6 hours. Dorothy can finish
garik1379 [7]

Answer:

It will take them 3.43 hours.

Step-by-step explanation:

Let T denote the total cookies that need to be cocked. Observe that:

  1. If Rosanne finishes the cookies in 6 hours, that means that she can make \frac{T}{6} cookies per hour.
  2. If Dorothy finishes the cookies in 8 hours, that means that she can make \frac{T}{8} cookies per hour.

Then, by 1) and 2), if they work together would we able to make

\frac{T}{6}+\frac{T}{8}=\frac{8T+6T}{48}=\frac{14}{48}T=\frac{7}{24}T

cookies per hour.

Therefore, in order to finish the T cookies they will need \frac{24}{7}\approx3.43 hours

3 0
4 years ago
Help!! What is arc HLK? Thankyou!
Bezzdna [24]

We know Angle HMK is half the sum of Arc JI and Arc HLK. So, we can set up an equation.

8x - 1 = 1/2 (3x + 2 + 15x - 36)

8x - 1 = 1/2 (18x - 34)

16x - 2 = 18x - 34

32 = 2x

16 = x

Then, we can substitute x into Arc HLK

HLK = 15x - 36

HLK = 240 - 36

Arc HLK = 204°

5 0
3 years ago
The figure is reflected across line m and the reflected across line n. What type of transformation is the result?
slega [8]

It's a translation.

A reflection across a line is like flipping that object like a pancake over the line.  It gets turned upside-down.

When you flip the pancake again, now across a parallel line, it gets turned right-side up again, just in a new location.  

6 0
3 years ago
You love nuts. You go to the store to buy almonds and cashews. Cashews cost $2 per pound and Almonds cost $5 per pound. You end
lesantik [10]
The answer should be 450 divided by two
7 0
3 years ago
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