Mathematics Middle School

Solve the system of equations below by substitution. Write your answer as an ordered pair. e.g. (2,3)

Answers

Answer 1

Answer:

(5,3), (3,2).

Answer 2

I agree with that person

Related Questions

i need help please help

Answers

Answer:

a) 2/10

b) 5/10

c) 3/10

Step-by-step explanation:

There is 10 balls in the jar so the probability of each color depends on how many balls in each color and how many balls in the jar.

(A) 1/5
(B) 1/2
(C) 3/10

Solve the system of equations below by elimination. Write your answer as an ordered pair. e.g. (2,3)

Answers

Answer:

(45,35)

Step-by-step explanation:

1 - Stack the equations on top of each other

3x - 4y = -5

4x + 4y = 40

2 - We can eliminate by subtracting the bottom equation from the top equation

3x - 4y = -5

- 4x - 4y = 40

3 - The y's cancel out, leaving us with...

3x = -5

- 4x = 40

4 - Continue simplifying

-1x = -45

5 - We can switch the -1x with -x to make things simple

-x = -45

6 - Positize (make it positive) the statement

x = 45

7 - Halfway there! Substitute the x value into one of the equations

(3 * 45) - 4y = -5

8 - Solve

135 - 4y = -5

Minus 135 on both sides

-4y = -140

Divide by -4 on both sides

y = 35

9 - Here is your answer!!

x = 45

y = 35

(45,35)

(45,35)
hope this helps

A park has 8 trees. One of those trees is a pine tree.

What fraction of the trees are pine trees?

1/2
1/3
1/8
1/6

Answers

1/8 this question is very very easy

Answer:

1/8

Step-by-step explanation:

becaause only one of the 8 are pine

hope this helps!

add me as a friend if you can<3

Jezebel took a train to visit her uncle. The train traveled at a constant speed of 40 miles per hour. Complete the table. Then, write an equation to find the total distance d traveled after t hours.

Answers

Answer:

[see below]

Step-by-step explanation:

We can tell that for every hour passed the distance traveled by the train would increase by 40 miles.

We can use the equation d = 40t to determine the values of the table. The 'd' is total distance and 't' is the number of given hours.

Two hours:

d = 40(2)

d = 80

Three Hours:

d = 40(3)

d = 120

Four Hours:

d = 40(4)

d = 160

Hope this helps.

Multiply 40 by that number so basically y=Mx+b

If n(p)=20, n(Q)=30 and n (PUQ)=40

then

Draw a veen diagram of the above information.

Answers

Hope it helps you..
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Pleas help me with this

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Answer:

The probability of a number bigger than 4 when o dice is rolled is 2/6 or in decimal 0.333.....

Step-by-step explanation:

The probability is 2/6

1. to replace a variable in a mathematical expression with an actual value
variable
2. a value of the variable that makes an algebraic sentence true
solution
3. a system for simplifying expressions that ensures that there is only one right answer
order of operations
4. a letter used to represent an unknown number or quantity
equation
5. a mathematical statement that shows two expressions are equal using an equal sign
substitute

Answers

Answer:

what is the question so i can help you, i'm confused

answer asap please and thank you look at the image

Answers

Answer:

4x=36

Step-by-step explanation:

4x=36

x=36/4

x=9

Other equation

36/4=x

for example:

6x=36
36/6=6

you could also use any of the following:

1x=36
36/1=36

2x=36
36/2=18

3x=36
36/3=12

4x=36
36/4=9

etc.

PLZ HELP 30 PTS ANSWER FAST AND I GIVE BRAINLIEST AND 5 STARS TO THE PEOPLE WHO DON'T GET BRAINLIEST!!!!!
Mr. Jacobs is going to make a histogram of the test scores from the last math test he gave. He plans to first organize the data into a stem-and-leaf plot and then make the histogram from the stem-and-leaf plot. The test scores are listed below.

79, 82, 65, 61, 94, 97, 84, 77, 89, 91, 90, 83, 99, 71, 68, 77, 87, 85

Which of the following histograms represents this data?

Answers

Answer:

Step-by-step explanation:

Answer is 4 hope this helps

PLEASE HELP IM BEGGING YOU PLEASEEE THABK U SO MUCH

Answers

Step-by-step explanation:

not sure for the answer but take how many triangles there are if they are all same same size then use this equation x÷t=a x is 360° t is how many triangles in the octagon and a is ur answer

Angle a Central angles are 22.5 degrees. 360 divided by 16

Angle b 180-(90+22.5) = 67.5 degrees

help i'll mark brainliest thank you

Answers

Answer:

Q1: B

Q2: D

Q3: B

Q3: C

explanation:

Answer:

Q1 : D = 4.5

Q2: A and C = 22/7 and 3. 14

Q3: C = 36

Q4: B = 28.5

Step-by-step explanation:

plz mark brainliest :)

help mm m mn30id8u9309ikhojkri85ujj5t98ujt

Answers

Answer:

94%

Step-by-step explanation:

The big block is 10 by 10 or 100 little blocks

94 blocks are shaded

94/100 blocks are shaded

Percent means out of 100

94%

Answer:

The answer is 94%

Step-by-step explanation:

The square is 10 by 10, so there's 100 small squares and there's 6 missing

100-6 is 94.

Brainliest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

I got 1.2 I found this because the smaller model is 60% the size of the larger model same with the side NJ

I’m pretty sure it is 5.4

The ratio 3:5 can also be used to describe a relationship between the animals
in the field on Monday. What relationship could this ratio describe? Show or
explain how you got your answer.
Enter your answer and your work or explanation in the space provided.
(The ratio for the animals on Monday was 18:12)

Answers

Answer:

18/12

Step-by-step explanation:

The answer is definitely 18:13

Find the area of the parallelogram:

Answers

Answer:

117

Step-by-step explanation:

13x9

A=bh
B= 13in
H=9in
A= 9*13=117in2

Answer questions #13 & 14. Number 13: What is the system shown? Number 14: Type the correct answer in the box. THE IMAGE BELOW SHOWS BOTH QUESTIONS.

Answers

Answer:

124

Step-by-step explanation:

248)

The answer is definitely 124

The voltage in a flashlight bulb is 6.0 volts and has a resistance of 24 ohms. Calculate the current explain you answer

Answers

Answer:

Step-by-step explanation:

Answer:

0.25 amps

Step-by-step explanation:

VOLTAGE = CURRENT * RESISTANCE or V=IR

Voltage / Resistance = 0.25 amps

yoooooooooooooooooooooooooooooooooooooooooo brainliest

Answers

Answer:

Step-by-step explanation:

wassup dont give my idiot self brainliest

Answer:

1124 thin crust pizzas

Step-by-step expl

anation:

2 __ a solution of 4 = k/4

is it or is it not

Answers

[tex]k = 16[/tex]

Step-by-step explanation:Question

[tex]4 = \frac{k}{4} [/tex]

First, make k as the Subject

[tex]4 \times 4 = k[/tex]

Now simply Solve it

[tex]k = 16[/tex]

Hope this helps you.

Have a nice day!

Good luck on your Assignment!!

Yes it is because 2 4s = 16

it is easy but it's confusing so i dont know

Answers

Answer:

I think so

Step-by-step explanation:

i dont know

It would be 110.25 for the area

easy math please help i'll mark brainliest

Answers

Answer:

D, D, A, C

Step-by-step explanation:

Congruent means equal.

T and r are alternate angles

Vertically opposite angles are equal

Y is 47 degrees because since the full angle is 90 degrees, subtract:

90-43 = 47

Hope this helps :)

-jp524

47 I hope this helps you

How many terms are in each factor of the expression 9(7 + 2x)?

Answers

Answer:

2 terms i believe if i am wrong i apologize

Step-by-step explanation:

It’s two terms but I might be wrong

Please help me! Will give Brainliest!!

Answers

Answer:

18 units

Step-by-step explanation:

Answer:

18 units that is the answer. :)

Consider this expression.

6 x +24

Which of the following are equivalent to the expression?
Select the three equivalent expressions.

A. 6(x +4)
B. 6(x + 24)
C. 3(12 + 2x)
D. 2(3x + 12)
E. 3х + 3 + 20 + 4х
F 4x + 12 + 2x + 12

Answers

A
D
F
That is the correct answer

It would be F,B,D because they all make sense together all you have to do is solve them but these are correct

What are the vertices of the resulting image A’B’C’D’E after rotating the figure 90 degrees about the origin?

Answers

Answer:

Step-by-step explanation:

45 :))) hope that helps

hi i dont get this please help me!!! :( and answer both of them please!

Answers

Answer to the Trapezoid Question:

A=88.2

Step-by-step explanation:

the formula you use to find the area of a trapezoid is

A= ((a+b)/2)h

a+b are the bases added together

The bases are the top, and the bottom of the trapezoid

the height is the dotted line, the height of the trapezoid

Answer to the net question:

surface area = 124 square feet

Step-by-step explanation:

to find the area of a square you multiply the two sides such as 8 times 5

so do that for all of the squares in the net and add them together

its a net so most of the sides are the same length, imagine putting it into a rectangular prism if you're not sure what the side is

Sorry just answering need points

You AND six friends play on a basketball team. A sponsor paid $100 for the league fee for the season, x dollars for EACH player’s T-shirt, and $68.25 in total for trophies. Write a simplified expression for the total amount the sponsor paid for the season

Answers

Answer:

7x + 168.25

Step-by-step explanation:

Umm I wasn't completly sure but good luck!

7x + 168.25 is the answer

The surface area of the sphere is 192 cm^2
so the radius is ______ cm
and the volume would be _____ cm^3

Answers

Answer:

radius = 3.91 cm; volume = 250.4 cm^3

Step-by-step explanation:

Surface area formula = 4πr^2
Since you have everything except the radius, r, divide the surface area, 192 cm^2, to get the radius.
After you’ve done that, take the radius, 3.91, substitute it into the formula for volume.
Formula for volume is = 4/3πr^3
- hope that helps :)

PLS HELP :(

At the Manchester Ice Cream Parlor, one group of friends ordered 1 small serving of ice cream and 1 large serving of ice cream for $5. Another group of friends ordered 4 small servings of ice cream and 5 large servings of ice cream for $24. How much does the ice cream cost?

The ice cream costs $__ for a small serving and $__ for a large serving.`

Answers

large is $4
small is $1

Answer:

$24

Step-by-step explanation:

5 large servings = 4 + 4 + 4 + 4 + 4 = $20

4 small servings = 1 + 1 + 1 + 1 = $4

20 + 4 = $24

The ice cream costs $1 for a small serving and $4 for a large serving.

~ LadyBrain

Which expressions are equivalent to
62
?
Select all that apply.
O 6-8
7.12
6-2
6
7
6
712
712

Answers

I don’t understand eaither sorry

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