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Anna [14]
2 years ago
13

Which expression is equivalent to 2 (-12r - 3) + (42 - })?

Mathematics
1 answer:
lara [203]2 years ago
4 0

Answer:

362 is equivalent to ur answer

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Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
Mashcka [7]

Multiplying eqn no. two with 4 we add it up with eqn 1.

4x - 5y = 10 \\  - 4x - 12y = 32 \\

- 17y = 42 \\ y =  \frac{ - 42}{17}

When

- x - 8 = 3y \\ x + 3y =  - 8

x =  - 8 -  3 \frac{ - 42}{17 }  \\ x =  - 8 +  \frac{42}{17}  \\ x =   \frac{ - 10}{17}

So, x = - 10/17 and y = - 42/17.

5 0
3 years ago
Read 2 more answers
Latoya drives 8 miles to work in 13 minutes. What is her average rate, in miles per hour, when rounded to the nearest wholes num
Mama L [17]

Answer:

37 miles per hour

Step-by-step explanation:

To find the average rate (average speed) of Latoya in miles per hour, you would divide the distance traveled (in miles) by the time taken to travel (in hours).

So we know that Latoya traveled 8 miles in 13 minutes. We cannot divide 8 by 13, because 13 is in minutes, not hours. We must convert 13 minutes to hours before dividing.

There are 60 minutes in one hour, so to covert minutes into hours, we would divide the minutes (13) by 60. Doing this would give you 13/60. You cannot simplify the fraction 13/60, because 13 is a prime number. It would be best to just leave it as it is for now. So Latoya traveled for 13/60 hours.

Now, to find her average rate in miles per hour, you divide the distance traveled in miles (8 miles) by the time it took to travel in hours (13/60):

8 ÷ 13/60

Remember, a ÷ b/c = a × c/b. Using this:

8 ÷ 13/60 = 8 × 60/13 = 480/13 ≈ 37 rounded to the nearest whole number.

Latoya had an average rate of about 37 miles per hour.

I hope this helps. :)

6 0
3 years ago
There are 12 students who wish to enroll in a particular course. there are only five seats left in the classroom. how many diffe
siniylev [52]
792 is the answer

(12*11*10*9*8)/5!=792
5 0
3 years ago
(5x+6xy-4)-(-6x+7xy+2)
Maslowich

Answer: 11x - xy - 6

Step-by-step explanation:

(5x+6xy-4)-(-6x+7xy+2)

5x + 6xy - 4 + 6x - 7xy -2

11x - xy - 6

3 0
3 years ago
10 points and will be marked BRAINLIEST if the answer you give is correct!
kifflom [539]

Answer:

the one on the bottom and Lewis made one less of whatever Bryan made

Step-by-step explanation:

5 0
3 years ago
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