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Furkat [3]
3 years ago
5

A number y is 6 less than twice a number

Mathematics
1 answer:
omeli [17]3 years ago
7 0

Answer:

C

Step-by-step explanation:

blah blah blah blah blah blah

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All questions to be solved using linear combination.
monitta
1)
I:x-y=-7
II:x+y=7

add both equations together to eliminate y:
x-y+(x+y)=-7+7
2x=0
x=0

insert x=0 into II:
0+y=7
y=7

the solution is (0,7)

2)
I: 3x+y=4
II: 2x+y=5

add I+(-1*II) together to eliminate y:
3x+y+(-2x-y)=4+(-5)
x=-1

insert x=-1 into I:
3*-1+y=4
y=7

the solution is (-1,7)

3)

I: 2e-3f=-9
II: e+3f=18

add both equations together to eliminate f:
2e-3f+(e+3f)=-9+18
3e=9
e=3

insert e=3 into I:
2*3-3f=-9
-3f=-9-6
-3f=-15
3f=15
f=5

the solution is (3,5)

4)
I: 3d-e=7
II: d+e=5

add both equations together to eliminate e:
3d-e+(d+e)=7+5
4d=12
d=3

insert d=3 into II:
3+e=5
e=2

the solution is (3,2)

5)
I: 8x+y=14
II: 3x+y=4

add I+(-1*II) together to eliminate y
8x+y+(-3x-y)=14-4
5x=10
x=2

insert x=2 into II:
3*2+y=4
y=4-6
y=-2

the solution is (2,-2)
8 0
3 years ago
If u answer corectly (i know the answer already) ill paypal u 3 dollars
Helen [10]

Answer:

Park A

Step-by-step explanation:

Park b in decimal: 17 ÷ 8 = 2.125 miles

Park A is closer

7 0
3 years ago
Read 2 more answers
Jayden had $8 last week. He now has $11. What is the percent of change?
vagabundo [1.1K]

Answer:

37.5 %

Step-by-step explanation:

11/8 = 1.375

1.375 x 100 = 137.5 %

137.5% - 100% = 37.5%

5 0
3 years ago
Help pls I have no idea lol
Phantasy [73]

Answer:

a=7b=9c=4

Step-by-step explanation:

3 0
3 years ago
In a company, 37% of the 1500 employees are females.
musickatia [10]
The answer fam is....in a company 37% of the 1500 employees are females. work out the number of males in the company

 

100-37 = 63

 

63% are male

 

63/100*1500 = 945 are male?

7 0
3 years ago
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