MATHEMATICS HIGH SCHOOL

What is the simplified form of the equation fraction 4 over 5 n minus fraction 3 over 5 equals fraction 1 over 5 n?n = 1
n = −3
n = fraction 3 over 4
n = fraction 1 over 4

Answers

Answer 1
Answer: If you would like to know the simplified form of the equation, you can calculate this using the following steps:

4/5n - 3/5 = 1/5n     /*5n
4 - 3/5 * 5n = 1
4 - 3n = 1
4 - 1 = 3n
3 = 3n
n = 1

The correct result would be n = 1.
Answer 2
Answer:

Answer:

n=1

Step-by-step explanation:

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Solve each system of equations using substitution. Show all work.1) x + y = 1
2x - y = -2

2) 5x - 3y = -11
x - 2y = 2

3) x - y = 3
6x + 4y = 13

Answers

it would be so much easier with elimination but ok
1.
x+y=1
minus x
y=1-x
sub
2x-(x-1)=-2
2x-x+1=-2
x+1=-2
x=-3
sub
y=1-x
y=1-(-3)
y=1+3
y=4
(-3,4)

2.
x-2y=2
add 2y
x=2y+2
sub
5(2y+2)-3y=-11
10y+10-3y=-11
7y+10=-11
7y=-21
y=-3
sub
x=2y+2
x=2(-3)+2
x=-6+2
x=-4
(-3,-4)

3.
x-y=3
add y
x=y+3
sub
6(y+3)+4y=13
6y+18+4y=13
10y+18=13
10y=-5
y=-1/2
sub
x=y+3
x=-1/2+3
x=5/2

(5/2,-1/2)


1. (-3,4)
2. (-3,-4)
3.(5/2,-1/2)

What is the solution to the following equation? 5x + 7x = 60

Answers

Answer:

5x+7x=60

12x=60

x=60/12=5

Step-by-step explanation:

PLEASE HELP ME!!!!!!!!! I'LL MARK YOU BRAINLIEST IF YOU ANSWER THESE CORRECTLY!Find the value of x

Answers

Answer:

question 4 ... x = -11

question 5.... x = -7

question 6... x = 12

question 7.... x = 10

Step-by-step explanation:

number 4

note : the total angle of a triangle is 180 degrees

hence solve this by creating an equation

x + 51 + 60 + 80 = 180

x = 180 - 80 -60-51

x = -11

number 5

note : the total angle of a triangle is 180 degrees

hence solve this by creating an equation

remember that a right angle is 90 degrees

45 + 52+x + 90 = 180

x = 180 - 90 -52 -45

x = -7

number 6

note : the total angle of a triangle is 180 degrees

hence you can solve this by creating an equation

53 + 39+ 4+7x = 180

now make x the subject of the equation

7x = 180 - 53 - 39 - 4

7x = 84

x = 84/7

x = 12

number 7

note : the total angle of a triangle is 180 degrees

hence solve this by creating an equation

6x - 5 + 5x + 75 = 180

now make x the subject of the equation

6x +5x = 180 - 75 + 5

11x = 110

x = 110/11

x= 10
As the angles of the triangle are equal to 180
Therefore,
180=53+39+4+7x
180-96=7x
84=7x
X=12
Part 2
180=5x+6x-5+75
180-70=11x
110=11x
X=10
This is for page 1 questions

Solve the system of equations.2x + 3y = 13
–6x + 4y = 0
A.
(2, 3)
B.

C.
(5, 1)
D.
(–2, –3)

Answers

2x + 3y = 13

–6x + 4y = 0

multiply the first equation by 3

6x +9y = 39

then add the 2nd equation to the first

6x +9y = 39

–6x + 4y = 0

-------------------

13y = 39

divide by 13

y =3

now take an equation and solve for x by substituting in y

2x +3y =13

2x +3(3) =13

2x+9 =13

subtract 9 from each side

2x =4

divide by 2

x=2

Answer (2,3)

Choice A

Answer:

a

Step-by-step explanation:

What is the answer to this equation using substitution x+y=12x+3y=-4

Answers

{   x + y = 1    * ( - 2 )
  2 x + 3y = -4

- 2 x - 2 y = - 2
  2 x + 3 y = - 4
_______________
         y = - 6

Subsititute y = - 6 

2 x + 3 y = - 4

2 x + 3 * (-6) = -4

2 x - 18 = - 4

2 x = - 4 + 18

2 x = 14

x = 14 / 2

x = 7

The solution  to the system of equations are:

x = 7 and y = - 6

hope this helps!

Is 1/8 greater or less than 1/4

Answers

1/8 is less because would you rather have 1/8 or 1/4 of a pie? 1/4! So that's the bigger!
1/8 is less than 1/4. 1/8 is half of 1/4.
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