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KonstantinChe [14]
3 years ago
6

Twice a number decreased by four is seven

Mathematics
1 answer:
GalinKa [24]3 years ago
4 0

Answer:

2x > 10+4

x > 14/2

x > 7

Step-by-step explanation:

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PLEASE SHOW YOUR WORK!!! (solve system of equations by adding, subtracting, or multiplying.)
Aliun [14]
Hey friend, hope I can assist you!
I will solve by elimination <3.
Multiply 3x - 7y = 2 by 2: 6x - 14y = 4
6x - 14y = 4
6x - 9y = 9
5y = 5
Now we have
6x - 14y = 4
5y = 5
Now we want to solve 5y = 5 for y
So simply divide both sides by 5.
5y/5 = 5/5
This gives us one or in other words, y = 1.
Now we want to plug y = 1 into  6x - 14y = 4
So 6x - 14 * 1 = 4
This gives us
6x - 14 = 4
Now add 14 to both sides.
6x - 14 + 14 = 4 + 14
6x = 18
Now divide both sides by 6
6x/6 = 18/6
This gives us 3 so x = 3
Therefore our solutions to this system of equations would be y = 1 and x = 3

5 0
3 years ago
Triangles and algebra :)
sleet_krkn [62]
2x-2+x+3+x+11=180

4x+12=180

4x= 168

X= 45
5 0
3 years ago
Find the volume of a cuboid of sides 9 cm, 10 cm and 11 cm.
amm1812

Answer:

990 cm3

Step-by-step explanation:

lengh x width/ breadth x height

9x10x11 =

990cm3

5 0
2 years ago
The summer after sophomore year, Haley nannied for a family and earned $2000. She
AnnZ [28]

You want to calculate the interest on $2000 at5.8% interest per month after six years?

Here is your formula: I =p*r*t

P is the principal amount which is $2000

R is the rate of interest which is 5.8% per month

T is the time involved whihc is six years  

You’re interest is 8352.00

3 0
3 years ago
Calculate the area of the regular pentagon below:
KIM [24]
The answer is 858.55 because A=145(5+25)a2
5 0
2 years ago
Read 2 more answers
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