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
Lelu [443]
4 years ago
6

A pair of equations is shown below:

Mathematics
1 answer:
ArbitrLikvidat [17]4 years ago
4 0
I would use subsitution because both are already equal to a single variable

set both equal since both equal y
8x-9=y=4x-1
8x-9=4x-1
minus 4x both sides
4x-9=-1
add 9 boh sides
4x=10
divide by 4
x=10/4=5/2
sub for x

y=4x-1
y=4(10/4)-1
y=10-1
y=9

(5/2,9) is solution


A. work shown above
B. (5/2,9) or (2.5,9)
You might be interested in
What is 1.859 to the nearest hundredth
Katen [24]
The 5 is in the hundredths place, so you would look at the number before it, which is 9. Since 9 is greater than 4, you will round the 5 up to 6
So it would be 1.86
7 0
3 years ago
I need hellp quick tha answer are 1,2,3,4,5 / 1,2,3,4,5
SVEN [57.7K]
Lemme check in Google for u
3 0
4 years ago
Which number line represents the solution set for the inequality 3(8-4x)<6(x-5)?
djverab [1.8K]

we have

3(8-4x) 54\\ x > (54/18)\\x > 3

the solution is the interval -------> (3,∞)

therefore

the answer in the attached figure

3 0
3 years ago
Read 2 more answers
Help..... me .......please..........ITS URGENT
Vikentia [17]

Answer: 115, 2645

(x= 115, y= 2645)

Step-by-step explanation:

There are two methods to this, which is using the graph with each x and y value, or substituting in values.

I would suggest looking at the graph first and then substituting values so you know the equation is being satisfied by the ordered pair.

In this case, one way to check it could look like this (substituting y value):

y = 23x

2645 = 23x

x = 2645÷23

x = 115

6 0
2 years ago
Simplify ( I dont have a calculator-.-)
notsponge [240]

The answer is 2 4/9.

5 0
3 years ago
Read 2 more answers
Other questions:
  • What are the steps to simplify the expression (6x2 − 3 − 5x3) − (4x3 + 2x2 − 8).
    11·2 answers
  • If the weight of a package is 3/10 the result is 7.2 pounds. find the weight of the package
    14·1 answer
  • Anyone know this question?
    9·1 answer
  • 6.7 how do I write it in two other forms
    10·2 answers
  • 2.Brian is heading out for a steady early morning jog as one of his training runs for a marathon. He plans to jog
    15·1 answer
  • Eugene can type 55 words per minuet. Allen can type 80 words in 2 minuets. If Eugene and Allen each type for 30 minuets, how man
    15·1 answer
  • Half of the substance to remain is called the half-life of the substance.
    9·1 answer
  • Make be brainly uuhuhuhuhuuhuhh
    7·1 answer
  • The cost of a meal is split evenly between between alania and her two friends.they determine that each person owes $ 14.68. how
    7·1 answer
  • Define a variable and write an equation to find each number. Then solve.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!