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
Marta_Voda [28]
3 years ago
6

2x+2y=4 y=12-3x Substitution

Mathematics
1 answer:
dangina [55]3 years ago
3 0
2x + 2(12-3x)=4
2x+ 2 x 12 + 2 x 3x = 4
2x + 24 + 6x = 4
6x + 2x = 8x 
8x + 24 = 4
24/4 4/4 
6 = 8x 
x= .75
You might be interested in
Simplify the expression: 2(5r + 8)
Ganezh [65]

Answer:

2(5r + 8) = 10r + 16

Explanation:

Given the expression:

2(5r + 8)

Remove the parentheses

2 × 5r + 2 × 8

= 10r + 16

8 0
10 months ago
Gabe drops a hammer from an apartment that is 30 meters above the ground. The height of the hammer in meters, h, after t seconds
anyanavicka [17]

Simplifying
h(t) = -1t2 + -2t + 30

Multiply h * t
ht = -1t2 + -2t + 30

Reorder the terms:
ht = 30 + -2t + -1t2

Solving
ht = 30 + -2t + -1t2

Solving for variable 'h'.

Move all terms containing h to the left, all other terms to the right.

Divide each side by 't'.
h = 30t-1 + -2 + -1t

Simplifying
h = 30t-1 + -2 + -1t

Reorder the terms:
h = -2 + 30t-1 + -1t

4 0
2 years ago
) a) Liaqat gave his uncle a puzzle. "five times my age plus 10 years makes 70 years." How old is Liaquat? b) His uncle replied,
Kamila [148]

Answer:

a. 12 years

b. 30 years

Step-by-step explanation:

a) Assume Liaqat's age is x. His age would be:

5x + 10 = 70

5x = 70- 10

x = (70 - 10) / 5

x = 12

<em>Liaqat is 12 years old.</em>

b. Assume his uncle's age is y;

4y - 10 = 130

4y = 130 - 10

y = (130 - 10) / 4

y = 30

<em>Liaqat's uncle is 30 years old. </em>

8 0
3 years ago
¿Se pueden reducir términos semejantes en la expresión? y +3x +4y+x+3y+2x. ¿Por qué?
ludmilkaskok [199]

Answer:

8y + 6x

Step-by-step explanation:

Combine like terms

   y + 3x +4y + x + 3y + 2x

=  (y + 4y + 3y) + ( 3x + x + 2x)

=    8y + 6x

6 0
2 years ago
An aquarium is 8 feet long, 5 feet wide, and 3.4 feet deep. What is the volume of the tank?
Novosadov [1.4K]

Answer:8x5x3.4= 132 feet squared

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • Can anyone help me with these
    10·2 answers
  • f(x)=-3x+12 represents the amount of ounces of juice left in a bottle after you take x gulps. How many gulps did you take if the
    11·1 answer
  • A group consists of 7 men and 5 women. Three people are selected to attend a conference.
    8·1 answer
  • Factor the following:
    11·1 answer
  • I need help with is problem.​
    8·2 answers
  • You want to place a towel bar that is 24 1⁄4 centimeters long in the center of a door that is 70 1⁄3 centimeters wide. How far s
    14·1 answer
  • A discount voucher offering 15% off is used to pay a bill. After using the voucher, the bill is reduced to £36.72. How much was
    10·1 answer
  • Two mechanics worked on a car. The first mechanic charged $105 per hour, and the second mechanic charged $85 per hour. The mecha
    13·1 answer
  • 8. What do you know about triangles PDX and triangle CRX? Justify your answer.
    11·2 answers
  • Marcus monthly salary is $1,500 plus 10% of sales. How much could Marcus earn per month with salary and 9% sales? Please explain
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!