All categories

2 years ago

X + 3y = 1 5x +6y = 14

Mathematics

2 answers:

marshall27 [118]2 years ago

4 0

Answer:

1. X = 1 - 3y

2. -5/6x + 7/3

Those are the answers to the problems

rusak2 [61]2 years ago

3 0

(x,y) = (4,-1)

x + 3y = 1 subtract 5 from both sides you get -5x -15y =-5

now sum it up
-5x -15y =-5
5x +6y = 14
you get -9y = 9
divide both sides by -9

you get y=-1

NOW substitute y for x + 3 times (-1)= 1

solve for x and get x=4

therefore your answer is (4,-1)

You might be interested in

Sales increased by only 12% last month. If the sales from the previous month were $152,850, what were last months sales

Tamiku [17]

Answer:

$\$171,192$

Step-by-step explanation:

Remember that

$100\%+12\%=112\%=112/100=1.12$

we know that

The sales from the previous month were $152,850

This amount represent the 100%

Find out what were last months sales, multiply the sales from the previous month by the factor 1.12

$\$152,850(1.12)=\$171,192$

3 0

2 years ago

If s= 2x+t/r, then t equals

Natasha2012 [34]

Answer:

t = r s − 2 r x

Step-by-step explanation:

Brainliest?

5 0

3 years ago

A merry-go-round can hold 36 people on each 5-minute ride. How many people would have received a ride on the merry-go-round in a

BigorU [14]

Answer:

432

Step-by-step explanation:

The hour have 12 5 min (12*5=60)

So 36*12=432

3 0

2 years ago

vanessa drew a figure and said that it had an infinite number of lines of symmetry. what figure did she draw?

Korolek [52]

A circle
That's a very easy one cuz if u try u will find it to be correct

5 0

3 years ago

Read 2 more answers

Jeanne babysits for $6 per hour. She also works as a reading tutor for $10 per hour. She is only allowed to work 20 hours per we

Allushta [10]

Part a) Use a system of inequalities to model the scenario

Let

x-------> represent babysitting hours

y-------> represent tutoring hours

we know that

--------> inequality

Part b) Use the model created in part A to create a graph representing Jeanne’s probable income earned and possible number of hours worked this week

we know that

--------> inequality

This inequality represent Jeanne’s possible number of hours worked this week

Using a graph tool

the solution of this inequality is the shaded area

see the attached figure N

--------> inequality

This inequality represent Jeanne’s probable income earned this week

Using a graph tool

the solution of this inequality is the shaded area

see the attached figure N

Part c) Analyze the set of coordinate values that represent solutions for the model created in part A. Choose one of the coordinates within the solution and algebraically prove that the coordinate represents a true solution for the model

we have the system of inequalities

--------> inequality

the solution of the system of inequalities is the shaded area

using a graph tool

see the attached figure N

Let

------> see the attached figure N

The point belongs to the shaded area, so it is a system solution.

If the point is a solution, it must satisfy both inequalities.

Prove algebraically

substitute the value of x and y in the inequalities

inequality

------> is ok

inequality

-------> is ok

the point A satisfy both inequalities

therefore

the point A is a solution of the system

5 0

2 years ago

Read 2 more answers