Mathematics High School

Solve the system of linear equations by susbitution! Show your work please!!!

Answers

Answer 1

Answer:

x=5, y=4

Step-by-step explanation:

-3x+5y=5

y=x-1

substitute y

-3x+5(x-1)=5

-3x+5x-5=5

2x=10

x=5

y=x-1

y=5-1=4

Related Questions

PLEaSe HelP mE!

Cristiano Ronaldo now has 765 goals in his soccer career, 8 more goals than Pele. Which inequality would represent Pele's total goals when solving for x?

Answers

Answer:95.62

Step-by-step explanation:

x+8<765 I'm sure I'm notnpositivr

simpliest radical form for the square root of 72

Answers

Answer:

√72=2⋅3√2.

Step-by-step explanation:

This is your answer I am pretty sure this is correct.

If not please let me know.

The interior dimensions of Sals refrigerator are 5 ft by 2 1/2 Ft by 2 ft. Find the capacity (Volume) of the refrigerator in cubic feet.

Answers

Answer:

I think its 5 and 4 are the answer

1) 45 +
103
What would this equal

Answers

Answer:

148

Step-by-step explanation:

103+45=148

y=x2-4

what is the answer?

Answers

Answer:

x=√y+4 or x=−√y+4

Step-by-step explanation:

Step 1: Add 4 to both sides.

x2−4+4=y+4

x2=y+4

Step 2: Take square root.

x=√y+4 or x=−√y+4

Madison is going to hike to the point (4,4) on the coordinate grid, which is the top of the

mountain shown.

7

6

5

2

0

1 2 3 4 5 6 7 8

What is the approximate total distance Madison travels while she moves up the mountain?

o

16

o

5.66

32

8.34

Answers

Answer:1212321312Step-by-step explanation:

2131313

Mary ans will rent a tandem bike for 10$/hr. which value is the dependent variable.which is the independent variable. write an equation to represent the relationship between the number of hours,h,and the total cost,c.

Answers

how many hours is the independent variable. 10h=c

What is the measure of angle x?

Answers

the answer is 35 degrees

how do i solve 6x+2y= 8

Answers

Answer:

The correct answer is,

for X:

[tex]x = \frac{4 - y}{3} [/tex]

for y:

[tex]y = 4 - 3x[/tex]

NEED HELPP CORRECTT ANSWERS AND WILL GIVE THANKS AND MARK BRAINLIST ONLY FOR CORRECT ANSWER

Answers

Answer is B negative

write an equation in slope-intercept form for each graph shown

Answers

Answer:

6. [tex]y = \frac{-1}{3} x+5[/tex]

7. [tex]y=\frac{5}{4}x-12[/tex]

Step-by-step explanation:

Rember to put an x behind the slope.

SOLVE THHE EQUATION QUICK WILL GUVE BRAILIEST: -3y-4>26

Answers

Answer:

342

Step-by-step explanation:

Answer: y<10

Explanation:
-3y-4>26
+4. +4
-3y/3>30/3
Y<-10

Which is not equivalent to the equation P=2L+2W

Answers

Answer:

Where are the answer choices

Step-by-step explanation:

PQRS is a square. find the value of x and y.

i need help, i aM DESPERATE FNDSVKBVKBVBKVD

Answers

Answer:

x = 7

y = 3/2 or 1.5 (IF THE ANGLE IS 30 BY THE RATIOS OF A RIGHT TRIANGLE.)

hope it's right

Step-by-step explanation:

FOR X:

Let's solve your equation step-by-step.

4x+3=31

Step 1: Subtract 3 from both sides.

4x+3−3=31−3

4x=28

Step 2: Divide both sides by 4.

4x/4=28/4

x=7

FOR Y:

Step 1: Simplify both sides of the equation.

(3)(7)+6y=30

21+6y=30

6y+21=30

Step 2: Subtract 21 from both sides.

6y+21−21=30−21

6y=9

Step 3: Divide both sides by 6.

6y/6=9/6

y=3/2

The two triangles shown are similar. Find the value of b.

Answers

Answer:

Since the corresponding sides of similar triangles are proportional,

[tex]\frac{a}{b}= \frac{2.1}{1.4} =\frac{3}{2}[/tex]

A test has 40 questions. Denise finished 2\5 of the questions in the first 10 minutes and 1\2 of the total questions in the next 15 minutes. How many questions had Denise answered after 25 minutes?

Answers

Answer:

28 questions answered.

Step-by-step explanation:

40(2/5) is 16 questions.

40-16 is 24 questions left.

24(.5) is 12 questions.

16+12 gets you 28 questions.

simplify 10x + 7y + 32x - 15y please help!

Answers

42x-15y. goodluck!!!

Over the summer,Kate earned $180 each week for 7 weeks.Of that money,she spent $375 on a new computer and $137 on new clothes. How much did she have left?

Answers

Answer:

755

Step-by-step explanation:

First do 180x7 which will give you 1,260 then do 1,260-375-137 which gives you 755.

Kate has the $748 of money.

What is subtraction?

Subtraction is a mathematic operation. Which is used to remove terms or objects in an expression.

Given:

Over the summer,

Kate earned $180 each week for 7 weeks.

That means,

she earns = 180 x 7

= $1260

She spends,

= 375 + 137

= $512

Now, she has the money = $1260 - $512

= $748

Therefore, she has the money $748.

To learn more about the subtraction;

https://brainly.com/question/2346316

#SPJ5

have many people out there watch ph everyday like my brother

Answers

Answer:

booanana

Step-by-step explanation:beep boop

Answer:

my sister do the same lol

Step-by-step explanation:

can someone help me with this i'm really confused heh... i'll give you a 5 star rating and brainliest answer!

Answers

1. m= 4/9
2. m=4
3. m=-11
4. m=1/2

Amy sells tote bags at a craft fair for a day. She pays $50 to rent a booth. The materials and labor cost on each tote bag is $3.50. Her expenses for the day depend on how many tote bags she sells. Write a linear function rule and identify the initial value and rate of change.

Answers

Answer:

Let x= number of totebags sold

Cost=C(x)=50+3.5x

Help pls! Find the value of X.

Answers

Answer:

C. 8

Step-by-step explanation:

102 - 54 = 6x

48=6x

x=48/6

x=8

Answer:

C!!!

Step-by-step explanation:

102-54= 48 divided by 6 equals 8 which is C

What are the coordinates of point R on the graph? Choose numbers to move to the lines to answer the question

Answers

Answer:

(0, 5)

Step-by-step explanation:

x = 0

y = 5

Sienna has $8 and is saving $3 per week. Jacob has $6 and is saving $4 per week. Which model represents the equation that can determine when Sienna will have the same amount of money as Jacob?

8 Negative x tiles and 3 positive 1 tiles = 6 positive x tiles and 4 positive 1 tiles

8 x tiles and 3 positive 1 tiles = 6 x tiles and 4 positive 1 tiles

3 x tiles and 8 positive 1 tiles = 4 x tiles and 6 positive 1 tiles

3 negative x tiles and 8 positive 1 tiles = 4 x tiles and 6 positive 1 tiles

Answers

Answer:

Step-by-step explanation:

From the given information:

Sienna has $8 denotes the unit blocks of x tiles. So, she saved $3 per week.

This implies that:

8x + 3(1) = 8x + 3

Also,

If Jacob as well had $6 which implies 6x unit block of tiles while he saved $4;

i.e.

6(x) + 4(1) = 6x + 4

So;

the model that can determine when Sienna will have the same amount as Jacob is:

8x + 3 = 6x + 4

Answer:

Step-by-step explanation:

i will mark brainliest if u answer

Answers

Step-by-step explanation:

The trick here is finding the scale used in the plotting. From the question, we can find two hints;

- Number of cat = 40. Since it has an equal scale for both men and women. It means the 40 / 2 = 20 (20 men and 20 women) has cat as their favorite pet.

- Since we know that the number of men is 20, we have to find what individual box represents. There are 4 boxes, this means each box would have a value of 20 / 4 = 5

Dog

For men, there are basically 5 lines (or boxes, if you prefer). This means 5 * 5 = 25

For women, there are basically 6 lines (or boxes, if you prefer). This means 6 * 5 = 30

Total frequency = 30 + 25 = 55

Hamster

For men, there are basically 3 lines (or boxes, if you prefer). This means 3 * 5 = 15

For women, there is basically 1 line (or box, if you prefer). This means 1 * 5 = 5

Total frequency = 15 + 5 = 20

Other

For men, there are basically 2 lines (or boxes, if you prefer). This means 2 * 5 = 10

For women, there are basically 3 lines (or boxes, if you prefer). This means 3 * 5 = 15

Total frequency = 10 + 15 = 25

find the equation of the parabola given the following information:
focus: (3,4)
directrix: y=1

Answers

Answer:

basically y=mx+b so it's y=1(3)+4

What is the slope of this graph?

A. -4

B. 1/4

C. -1/4

D. 4

Answers

Answer:

-4 is the slope

Step-by-step explanation:

Because the line is going downwards that makes it a negative and if you count the boxes rise over run. You look for the point where the line meets a box perfectly and then you count the boxes down which is 4 and across which is one which makes it -4/1. So the slope is -4.

Which type of function is shown in the table below

Answers

Answer:

Linear

Step-by-step explanation:

Answer:

Not a function

Step-by-step explanation:

wdym it is D not a function

PLEASE HELP!! I NEED THE ANSWER REALLY SOON!

Answers

Answer/ explaination

the answer is 108, not 180 because 9 goes into 7, 0 times but he put 8

Which explicit formula describes the sequence {87, 83.4, 79.8, 76.2, …}?

Answers

Answer:

an=87+(n-1)(-3.6)

Step-by-step explanation:

hope this helps

Answer:

an=87+(n-1)(-3.6)

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