1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NikAS [45]
2 years ago
14

1.3x - 10= 0.8x - 8 solve for x

Mathematics
2 answers:
Neporo4naja [7]2 years ago
5 0

Answer:

x = 4

Step-by-step explanation:

1.3x - 10 = 0.8x - 8

start by getting all like terms to the same side

subtract 0.8 x from both sides, add 10 to both sides

0.5x = 2

divide both sides by 0.5

x = 4

OverLord2011 [107]2 years ago
3 0

Answer:

x = 4

Step-by-step explanation:

1.3x - 10 = 0.8x - 8

Add 10 to both sides.

1.3x = 0.8x + 2

Subtract 0.8x from both sides.

0.5x = 2

Divide by 0.5.

x = 4.

Proof:

1.3x - 10 = 0.8x - 8

1.3(4) - 10 = 0.8(4) - 8

5.2 - 10 = 3.2 - 8

-4.8 = -4.8

You might be interested in
If you sleep 6 hours a day every day for a year you are sleeping of every year. If there are 365 days in a year, how
alex41 [277]

Answer:

Step-by-step explanation:

365 x 24 = 8,760

365 x 6 = 2,190

8,760 - 2,190 = 6,570

6,570 / 24 = 273 3/4

5 0
2 years ago
The sum of two numbers is twenty-five.One number is five less than the other number. Find the larger number
djverab [1.8K]
The larger number is 30.

Set up your equation.

x + y = 25

The question tells us one number is 5 less than the other.

The equation now becomes
x -5 = 25

Add 5 to each side to isolate x.

x=30
3 0
2 years ago
1. M is the midpoint of LN and O is the midpoint of NP.
Reptile [31]
1. M is the midpoint of LN and O is the midpoint of NP. This makes the triangle MNO equal to half of LNP. Then you can get this equation
MO= (1/2) LP

If you insert MO = 2x +6 and LP = 8x – 20 the calculation would be:
2x+6= (1/2)( 8x-20)
2x+6= 4x-10
2x-4x= -10 - 6
-2x= -16
x=8

2. Centroid is the point that intersects with three median lines of the triangle. The centroid should divide the median lines into 1:2 ratio. In AC lines, A located in the base so A.F:FC would be 1:2

Then, the answer would be:
A.F= 1/(1+2) * AC
A.F= 1/3 * 12= 4

FC= 2/(1+2) * AC
FC= 2/3 * 12= 8

3. Since
∠BAD=∠DAC
∠ABD=∠ACD
AD=AD
The triangle ABD and ACD are similar. You can get this equation
BD=DC
x+8= 3x+12
x-3x= 12-8
-2x=4
x=-2

DC=3x+12= 3(-2) +12= 6

4. Orthocenter made by intersection of triangle altitude
A
BC lines slope would be (-4)-(-1)/1-4= -3/-3= 1. The altitude line slope would be -1, the function would be:
y=-x +a
0= 1+a
a=-1
y=-x-1
B
AC lines slope would be (-4)-(-1)/1-0= -3. The altitude line slope would be 1/3, the function would be:
y=1/3x+a
-1=1/3(4)+a
a=-7/3
y=1/3x - 7/3

C
BC lines slope would be (-1)-(-1)/4 = 0/4. 
The line would be 
0=x+a
a=-1
0=x-1
x=1

y=-x-1 = 1/3x-7/3
-x-(1/3x)=-7/3 +1
-4/3x= -4/3
x=1

y=-x-1
y=-1-1= -2
The orthocenter would be (1,-2)

5. 
a. Circumcenter: the intersection of perpendicular bisector lines<span>
b. Incenter: the intersection of bisector lines
c. Centroid: </span>the intersection of median lines<span>
d. Orthocenter: </span>the intersection of altitude lines
5 0
2 years ago
It takes a machine 15 hour to assemble a toy.
solniwko [45]
12 toys. Dividing 15 by 60 equals 4 so 4 tots in a hour. Then multiple the 4 toys an hour by 3 hours.
8 0
2 years ago
A rectangular piece of poster board measures 60 centimeters by 80 centimeters. Linn draws the net of a box on the poster board a
adell [148]
I am pretty sure it is 50 by 64 centimeters but if it is not I am really sory for the mistake.
3 0
2 years ago
Read 2 more answers
Other questions:
  • Multiply these binomials, (x+2) and (3x-4)
    8·1 answer
  • In a bouquet of​ flowers, there are 7 daisies and 17 roses. write the ratio of daisies to roses in three different ways.
    6·1 answer
  • Greg plowed for 2.5 hours in the morning, 1 hour and 15 minutes in the afternoon, and 1 hour and 30 minutes in the evening. How
    8·1 answer
  • On average students attend school 170 of the 180 days required in a year. About what part of the required days do they attend sc
    10·2 answers
  • What is the value of the expression 8 P4 ? <br>32 <br>1,680 <br>40,296 <br>40,320​
    8·1 answer
  • A square rug covers 79 square feet of floor. What is the approximate length of one side of the rug? (Approximate to the nearest
    8·1 answer
  • The case of soda cans at your house is in the shape of a rectangular prism. You want to find the surface area of the soda case a
    10·2 answers
  • Subtract 2x/ x^2 -9 - 5/ x^2 - x - 12
    6·1 answer
  • What are the gradients (slopes) and y-intercepts of these lines, please?​
    11·1 answer
  • Which expression is the simplest form of −(2x 3 +x 2 )+3(x 3 −4x 2 )?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!