U
Question 9
10 pts
Solve this system of equations using substitution algebraically. Check your answer using
substitution.
3x + 4y = 36
y= x+8

Answers

Answer 1

Answer:

x = 4/7

y = 60/7

Step-by-step explanation:

3x + 4y = 36

y = x + 8

Substitute the second equation into the first since it already has the y isolated for you:

3x + 4(x + 8) = 36

3x + 4x + 32 = 36

7x = 4

x = 4/7

Take the answer you got from the equation above and plug that into the second equation:

y = 4/7 + 8

y = 60/7

To check just LS/RS both equations:

3(4/7) + 4(60/7) = 36

12/7 = 240/7 = 36

252/7 = 36

36 = 36

LS = RS

60/7 = 4/7 + 8

60/7 = 60/7

LS = RS


Related Questions

Answer anybody help needed

Answers

Answer:

the answers c

Step-by-step explanation: you are welc you wlc

the answer should be C!!!

Write the domain and range of each function using interval notation p

Answers

Domain A: [-4,4]
Range A: [1,5]

Domain B:[-3,1]
Range B: [-5,1]

Write the equation of the line fully simplified slope-intercept form.

Answers

Answer:Y=2x-6

Step-by-step explanation:

please help me please please please please please please pl

Answers

Answer:

37.1 m/h, he was going over but I don't think 2 m/h is technically speeding

Step-by-step explanation:

v = 2√5(69)

v = 2 √345

v = 2 × 18.57418

v = 37.14835

v = 37.1 m/h

What is the ratio when you multiply the ratio by 2 ( x2)

Answers

Answer:

4:4

Step-by-step explanation:

can someone help me with 3 questions
Find the area and perimeter/circumference of each shape. If needed, rounded to the nearest tenth. Use 3.14 for pi.

Answers

I can only help you with the first one, because I'm new to geometry, but here it is:

Area: 91cm

Perimeter: 136cm You need to add all the side measures together.

Circumference: It isn't possible to find circumference unless it is a circular shape. So there is no circumference for this shape.

I hope this helps!

Help PLEASE PICTURE BELOW!!

Answers

Answer:

table d

Step-by-step explanation:

functions can not have the same input twice

Answer:

A B and C repreasent functions

Step-by-step explanation:

2x - x=
Can you help me?

Answers

Answer:

2x - x = 1x

Step-by-step explanation:

P.S Can I have brainliest?

Answer: the x = 0 means 2 * 0 - 0 = 0

Step-by-step explanation:

5/6 divided 9/4.





IM NOT D**B IM JUST TRYING TO MAKE SURE. PLEASE EXPLAIN​

Answers

Answer:

10/27

Step-by-step explanation:

Simplify the following:

(5/6)/(9/4)

Multiply the numerator by the reciprocal of the denominator, (5/6)/(9/4) = 5/6×4/9:

(5×4)/(6×9)

The gcd of 4 and 6 is 2, so (5×4)/(6×9) = (5 (2×2))/((2×3) 9) = 2/2×(5×2)/(3×9) = (5×2)/(3×9):

(5×2)/(3×9)

3×9 = 27:

(5×2)/27

5×2 = 10:

Answer: 10/27

Hiking
(15,18
(10, 12)
Distance (miles)
15,6
10
15
Time
Using the data shown on the graph, which sztements are correct?
The
3
The ratio of L is consistent
The graph represents a proportional relationship
D
The grach does not represent a proportional relationship
The graph of a proportional relationship must past through. (0,0)

Answers

Answer:

I’m sorry but I don’t understand the question

Step-by-step explanation:

You bought a box of cake mix for $3.25 and two cans of icing. You spent a total of $7.45. How much was
each can of icing? You must write an equation and solve it for full credit.

Answers

Answer:

$2.10

Step-by-step explanation:

first you subtract $7.45-$3.25. You get 4.2. Then you divide that by 2 and get $2.10 hope this helps !!

ASAPPPP PLSSS HELP!!!! WILLL GIVE YOU THE BRANLIEST ANSWERRRR

Answers

Answer:

[tex](r^{2*3/3^1^* ^ 3)[/tex]

Step-by-step explanation:

Given

[tex](r^2/3)^3[/tex]

Required

Determine the equivalent expression

[tex](r^2/3)^3[/tex]

Apply the following law of indices:

[tex](a^n)^m = a^m^n[/tex]

[tex](r^2/3)^3[/tex]

[tex](r^2/3^1)^3[/tex]

So, the expression becomes:

[tex](r^{2*3/3^1^* ^ 3)[/tex]

Option D answers the question.

PLEASE HELP ASAP!! BRAINLIEST! What are the equations for the graph?

Answers

Answer:

-x^2-2x+3

1/2x^2-2x-1

Need Help ASAP WILL GIVE BRAINLIEST
(Do not just take points or I will report you.)


A student solved the given equation and justified every step except one. What is the missing reason?

A) Associative property of addition

B) Commutative property of addition

C) Multiplicative property of equality

D) Distributive property of multiplication over division

Answers

Answer:

D) Distribute Property

Step-by-step explanation:

The student did Distribute property but they didn't mark it down.

What is the volume of a rock with a density of 45 g/mL and a mass of 855 grams?

Your answer must have units

Answers

Answer:

  19 mL

Step-by-step explanation:

You want the volume of a rock with density 45 g/mL and mass of 855 g.

Volume

The units of density are mass per volume, so we can find the volume by dividing the mass by the density. The units basically tell you how to work the problem.

  [tex]\dfrac{855\text{ g}}{45\text{ g/mL}}=\dfrac{855}{45}\,\dfrac{\text{g$\cdot$mL}}{\text{g}}=\boxed{19\text{ mL}}[/tex]

__

Additional comment

Sometimes we like the volumes of things that aren't liquid to be expressed in cubic units. 1 mL = 1 cm³, so the volume could be described as 19 cm³.

What is the greatest common factor for the following expression? 3x^2 -9x *

Answers

Answer:

[tex]\mathbf{3x}[/tex] is the greatest common factor for the expression: [tex]3x^2 -9x[/tex]

Step-by-step explanation:

We need to find the greatest common factor for the following expression: [tex]3x^2 -9x[/tex]

Greatest common factor is the number, that is divisible by both numbers. In the given expression 3x is the greatest number that is divisible by all the terms

[tex]3x^2 -9x\\3x(x-3)[/tex]

So, [tex]\mathbf{3x}[/tex] is the greatest common factor for the expression: [tex]3x^2 -9x[/tex]

Dennis is playing a game that uses a number cube. The sides of the cube are labeled from 1 to 6. Dennis wants to roll a 2 or a 3. He rolls the number cube one time.

What is the probability that he will roll a 2 or a 3?

A. 1/2
B. 1/3
C. 2/3
D. 1/6

Please help me!

Answers

B hopefully that helps

Can you help me please
-5 3/4 - 3 1/2=

Answers

Answer:

-9 1/4

Step-by-step explanation:

Answer:

-9.25

Step-by-step explanation:

Pemdas,

If anyone help me with my entire test I’ll mark you brainliest

Answers

I think that the answer is C










Graham decided to play football this year instead of getting a part-time job. Last year he made about $1,100 during football season. He also spends about $9 on eating out after each game. His team plays a 10-game season. What is his opportunity cost of playing football?

Answers

10,091 because it's a 10 season football season and he spends 9 dollars every game

Step-by-step explanation:

ez

The opportunity cost of playing football for Graham is $1,190.

What is the Opportunity cost?

The opportunity cost of certain activity in microeconomic theory is the value or gain given up by engaging in that activity in comparison to engaging in an alternative activity. Simply put, if you do a bone activity, you forfeit the potential to choose another.

Given that Graham made $1,100 during football season. Also, Graham spends about $9 on eating out after each game and his team plays a total of 10 games in a season.

Therefore, the opportunity cost of playing football for Graham is,

Opportunity cost

= Amount that Graham would have made in a part-time job +  Total cost of playing football season

= $1,100 + (Number of games × Amount spend in a single game)

= $1,100 + (10×$9)

= $1,100 + $90

= $1,190

Hence, the opportunity cost of playing football for Graham is $1,190.

Learn more about Opportunity Cost here:

https://brainly.com/question/13036997

#SPJ2

During his career, player A was named the NBA's MVP one time
less than player B. Player C was MVP four more than half the times of player B. Together, the three players were named MVP 8 times. How many times was each of the players named MVP?

Answers

Answer: Player A=1 time

Player B=2 times

Player C=5 times

Step-by-step explanation:

A=B-1

C=4+B/2

A+B+C=8

B-1+B+4+B/2=8

B+B+B/2 -1+4=8

2B+B/2 +3=8

4B/2 +B/2=5

5B/2=5

5B=10

B=2 times

A=B-1

A=2-1

A=1 time

A+B+C=8

1+2+C=8

3+C=8

C=5 times

Use the graph to answer questions 9 and 10.
Andy is standing on the balcony of his third-story
apartment building. He throws his parachute army figure
in the air. The height of the army figure over time can be
written as a function, h(t), where h(t) is the height in
meters and t is the time elapsed in seconds. The function.
h(t) is graphed below.
25
METERS
20
15
10
5
1 2 3 4 5 6 7 8
SECONDS
9. What is the value of h(1.5)?
10. Describe in words what h(8)
represents.

Answers

Answer:

Step-by-step explanation:

[tex]h(1.5) = 20[/tex]

from the graph  when t= 1.5 h(t) = 20

[tex]h(8) = 0[/tex]    

from the graph  when t= 8 h(t) = 0

When the time is at 8 seconds the item hist the ground and  therefore the height is zero , and it represents the x-intercept of the graph.

Solve :
5x + x2 - 20 (x=3)

How do I solve other problems like this?

Answers

Answer:

It's already solved

Step-by-step explanation:

But try mo sa Quick Math nag try ako pero Sabi Already solved na daw

Determine whether the set is finite or infinite.
{42, 49, 56, ..., 70}

Answers

Answer:

The set is finite

Step-by-step explanation:

Let x be the variable

[tex]{ \rm{42 \leqslant x \leqslant 70}}[/tex]

Find the range and the interquartile for 32,33,37,32,31,36,34,31

Answers

Answer: range:6

interquartile: 3.5

Step-by-step explanation:

WILL GIVE BRAINLIEST ANSWER!

You are locked out of your house and the only open window on the second floor is 25 feet above the ground. You need to borrow a ladder from one of your neighbors. There is a bush along the edge of the house, so you will have to place the ladder 10 feet from the house. What length of the ladder do you need to reach the window?

Answers

25^2+10^2=c^2
625+100=c2
725=c^2
29.9258..=c
so about 30ft

Pls help asap. Jsut need the correct answer

Answers

Answer: i think its either the 1st or 2nd answer... personally id go for 1st

Answer:

B

Step-by-step explanation:

It increases 1.15 times over t because its 1.15*t

What is the measure of angle c? Pls hurry

Answers

Answer:

I think the answer is 43

Step-by-step explanation:

Because b=83

The total value of triangle angles =180

So 54+83=137

180-137=43

Round 9.517 to the nearest whole number?

Answers

Answer:

Step-by-step explanation:

10

It’s 10 since it’s bigger than 9.517

Which equation represents a linear function that has a slope of 5 and a y-intercept of -6?
O y=-6x+3
4
Ov=5x-6
OY=6x+3

Answers

It would be y=5x-6 so the second option (mark brainliest plz)
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