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natta225 [31]
2 years ago
9

HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME

HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME

Mathematics
1 answer:
Tom [10]2 years ago
5 0
The answer is 48/5 (9.6)
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Solve the following system of equations.
Elan Coil [88]

Answer:

(2,-3)

Step-by-step explanation:

I am not sure if you meant the first equation to be y or -y.  I solved it as y.

y = x-5                       -x -3y =7

I am going to take the second equation and write it as x =

-x - 3y = 7  Give equation

-x = 3y +7   Add 3y to both sides

x = -3y-7  Multiplied each term in the equation by -1 so that x could be positive

I am going to substitute -3y-7 for x in the first equation up above

y = x - 5

y = -3y -7 - 5  Substitute -3y-7 for x

y = -3y -12  Combined -7-5

4y = -12  Added 3y to both sides

y = -3  Divided both sides by 4.

I now know that y is -3, I will plug that into x = -3y-7 to solve for x

x = -3(-3) -7

x = 9-7   A negative times a negative is a positive

x = 2

5 0
1 year ago
Just a bunch of easy ones
Scilla [17]

Answer:

1. 5lb bag is cheaper

2. 6 mpm (minutes per miles)

3. Brycen

4. 18 mpm faster

5. 32 total shapes

6. 75

7. not enough info

8. 50 miles

9. 2

10. 2

Step-by-step explanation:

3lb=$3.54=1lb=$1.18

5lb=$5.85=1lb=$0.85

12 minutes/2 miles=6 mpm

24 minutes/1 mile=24 mpm

24-6=18 mpm faster

25% of 100= 4

4×8=32

60% of 80= 75

process of elimination:

24.5 is less than 35 so no

50×.7=35, total miles is 50

5 0
3 years ago
Read 2 more answers
PLEASE HELP IM BBEGGING!!!! WILL GIVE BRAINLYYYY!!!!!Which number line best shows the position of square root of 13? Number line
Citrus2011 [14]

Answer:

3.6

Step-by-step explanation:

3√13(3.6

   -9

-------  

66| 400  

    -396

    -------

           4

 

8 0
3 years ago
Read 2 more answers
(-6)-(-9) I need help plz
Grace [21]
Think of a number line

You have -6 and -9 

Jump 9 up the number line

Your answer is 3
5 0
3 years ago
Read 2 more answers
Write eighteen hundredths as a decimal.
arsen [322]
If you write eighteen hundredths as a decimal it will be .18
7 0
3 years ago
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