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tatiyna
3 years ago
13

Please solve this equation. Thank you!38x-12y = (6+2n)x + (4-n)y​​

Mathematics
2 answers:
Stells [14]3 years ago
7 0

Answer:

39x -12y = (6n+2n)X+(4-n)y

6+2n=38

2n=38-6

2n=32

n=32÷2

n= 16

Elis [28]3 years ago
3 0

Step-by-step explanation:

the answer is in the above image

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Put in one set of brackets to make these true.
Nonamiya [84]

The answer is

25-18÷(3×2)=22

7 0
3 years ago
Help please i really really really need it.....
ruslelena [56]

A)

s = sweater

j = jeans

Equations:

4s + 2j = 140

2s + 3j = 150

B)

4s + 2j = 140

2s + 3j = 150

Multiply (-2) to the second equation

-2 (2s + 3j = 150)

-4s - 6j = -300

Now you have the equations:

4s + 2j = 140

-4s - 6j = -300

-----------------------------add

-4j = -160

  j = 40

4s + 2(40) = 140

4s + 80 = 140

4s = 60

 s = 15

The cost for a sweater is $15 and the cost for a jean is $40

We used the elimination method to solve the system of equations.

C)

Each pair of jean, she will buy 3 sweaters so total = 40 + 3(15) = $85

Total cost for 1 pair of jeans and 3 sweaters = $85

If she has $225 the

$225 / $85 = 2.64

2 jeans = 2 x 40 = $80

6 sweaters = 6 x $15 = $90

So She can only buy 2 jeans and 6 sweaters

3 0
3 years ago
Can you please help me solve this?
oee [108]
So, i would use the add the two equation method, so add those to get:
2e=-4
e=-2
then plug in e to get d, so d+-2=1
d=3
plug into the other one to make sure
-3+-2=-5
so it would be (3,-2)
8 0
3 years ago
Which list orders the numbers from least to greatest​
aleksklad [387]

Answer:

The answer is D

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
It took Everly 55 minutes to run a 10-kilometer race last weekend if you know that 1 kilometer equals 0.621 mile how many minute
ikadub [295]
55 min/10 km=5.5 min/km

5.5 min/km x 1 km/.621 mile= 5.5/.621=8.86 min/mile

The answer is D.
3 0
3 years ago
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