Mathematics Middle School

Solve using substitution.

3x + 8y = 19
y = 2

( , )

Answers

Answer 1
3x + 8(2) = 19, 3x + 16= 19 , 3x=3 , x =1

Related Questions

Help?
Solve the equation, −5x = −30 Then graph the solution on the number line.

Answers

Answer:

x = 6

Step-by-step explanation:

-5*6 will equal -30

Answer:

blocked pic

Step-by-step explanation:

a 25 foot tall streetlight casts a shadow 20 feet long. if melanie is standing at the end of the shadow casted by a 60 foot tall building, how far is she from the building?

Answers

Answer:

Melanie is 48 feet away.

Step-by-step explanation:

20% of 25 = 20

20% of 60 = 48

Hopefully it helps, if not I'm sorry...

Answer:

Step-by-step explanation:

You take 25 divide 20 and what answer you get from that, you take it and divide it by 60.

Hope this helps.

the questions are on the attached screenshot file.

Answers

Look at the ss down below
Use these

King Henry Died Monday Drinking Chocolate Milk

K H D M D C M

If you go right you add how may times you moved over

If you go left you decrease how may times you have moved over

The letters stand for Kilo, hecta, deca, meter gram liter, Deci, centi and milli

(Circumference or circles)
explain your answer so I can understand

Answers

Answer:

5.5 inches

Step-by-step explanation:

Answer:

28.26

Step-by-step explanation:

C=2[tex]\pi r\\[/tex]                            Radius is twice the diameter so put 2[tex]\pi r\\[/tex]

C=2*3.14*4.5

C=6.28*4.5

C=28.26

I'll give anyone a brainlest if the first person answers it

Answers

Answer:

It's either y=1/2x or y=2x

Step-by-step explanation:

Have a wonderful night!!!!

Please help with this ! No need for work- its oka :D

Answers

slope intercept form: y=-5/2x+2
the slope you are looking for is -5/2x

answer it right ill brainliest u ig.....

Answers

Answer:

15b=m

Step-by-step explanation:

if you get 15 per box which is b and you get m which is how much in all. you have to do 15 times how many boxs someone gets.

Answer:

15B = m

Step-by-step explanation:

15b=m

You are multiplying the number of boxes of whitch is B by the amount of money each one costs witch is 15 dollars, m= the total amount.            

EXPERTS PLEASE HELP!! (q.4)

Answers

Answer: 90n + c

Step-by-step explanation:

Answer:90n+c

Step-by-step explanation: MATH

Please help answer both of these!!!...

Answers

1) the exact form would be around 1.98, so the answer would be D when rounded
2) A

Select the correct answer. In the figure, angle A measures 41° and angle D measures 32°. What is the measurement of angle E?

Answers

The measurement of Angle E is  99°

Yea the first person is right I did it and it said it was right.

Answer part A and Part B

Answers

Answer:

first one is 20 and second is 21

Step-by-step explanation:

7/(1/3)

To make it a fraction form answer, you multiply the whole number by the denominator and make the result the new numerator. The old numerator becomes the new denominator:

7 x 3 1

  =    

21 1

Thus, the answer to 7 divided by 1/3 in fraction form is:

21 1

To make the answer to 7 divided by 1/3 in decimal form, you simply divide the numerator by the denominator from the fraction answer above:

21 / 1 = 21

The answer is rounded to the nearest two decimal points if necessary.

21/1 is an improper fraction and should be written as 21.

for the

now the first one 4/(1/5) is 20 becaue...

To make it a fraction form answer, you multiply the whole number by the denominator and make the result the new numerator. The old numerator becomes the new denominator:

4 x 5 1

  =    

20 1

Thus, the answer to 4 divided by 1/5 in fraction form is:

20 1

To make the answer to 4 divided by 1/5 in decimal form, you simply divide the numerator by the denominator from the fraction answer above:

20 / 1 = 20

The answer is rounded to the nearest two decimal points if necessary.

20/1 is an improper fraction and should be written as 20.

Part B i dont know

please help mark brainliest thxs

Answers

Answer: C - 18cm
Explanation:
C
Explanation: you got this !!!

I need help with my little brothers homework?

Answers

I only did the first part but maybe later I will solve the rest too. If there are any errors but tell me so I can update the pic.
2. There is 10 different strings
3. I think you need to draw out the string lengths and then your done :)

Plz answer I need a lot of help as soon as possible.

Answers

Answer:

your answer is a i think sorry if im wrong

Step-by-step explanation:

If 24 chairs cost a total of $312.00. What is the unit price for each chair?

Answers

Answer:

$13 per chair

Step-by-step explanation:

312/24 = $13 per chair

Answer:

$13

Step-by-step explanation:

help please please please please

Answers

Answer:

H (20) = E

380

Step-by-step explanation:

So, Rana is trying to multiply her hours with her earnings to get the product, that's where the variable E is. H stands for hours, and so you will multiply it by 20 because that's how much she gets per hour.

-Junkerss

edit: yes im the original person who wrote this answer if anyone is c & p it.

I tried my best so good luck

who ever gets it first will get a brainlest

Answers

Answer:

I am pretty sure it is 1/5

it’s 5 because it’s 5 baby rabbits to one mother, which would be 5/1 and simplifies to 5.

PLZZZ HELP!!! What steps should be followed to solve the inequality -4x < 8.

Answers

Answer:

X>-2

Step-by-step explanation:

-4x < 8

You did both side by -4

Note that, when the variable is negative the inequalities sign must change

X>-2

1. Define a variable and write each phrase as an algebraic expression.
six times as many cupcakes as Scott.

2. Define a variable and write each phrase as an algebraic expression.
worked for 30 minutes less than Thomas.

Please explain how you do this and give me the answer and I will mark you as brainliest!

Answers

Answer:

6x=6c?

30-=ml

Step-by-step explanation:

I'm sorry if i got this wrong

I need help in a minute please

Answers

Answer:

31.4 im pretty sure

Step-by-step explanation:

I think the answer is also 31.4 am sorry if it’s wrong

Can someone Solve this for me real quick?
-8( x + 1 ) + 2x = -32

solve for x

Answers

-8x-8+2X= -32
-6x= -32+8
-6x= -24 multiply both sides by -1
6x=24
X=4

which of the following expressions is positive for any value of a: a^2+4,(a+8)^2, 5a^2+2,a+13,(a-4)^2+4,(a+10)^2-1

Answers

Answer:

I am not sure this is a real math equation

Step-by-step explanation:

There is no way to answer this. No elimination or substitution method would solve this. Sorry.

Someone plz check this work and tell me that this is right (I WILL GIVE YOU 50 POINTS)

Answers

Answer:

This work is correct

Step-by-step explanation:

Was that all?

Answer: it's correct 100%

ANSWER FAST BC IM GIVING BRAINLIEST

Answers

Answer:

D

Step-by-step explanation:

Answer:

I believe the answer is 16 or D.

Step-by-step explanation:

Range is the difference between the smallest and largest number. and since the box and whisker plot is at 3 and 19, 19-3= 16.

I hope this is right, i'm sorry in advance if it's incorrect

Clayton is plowing a wheat field. There are a total of 160 acres to be plowed. If he can plow 5 acres per hour, which equation would represent A, the number of acres left to plow, after Clayton has plowed for h hours?

Answers

Answer: 32h

Step-by-step explanation:

Apply the distributive property to create an equivalent expression.
6(a + 2b + 3c) =

Answers

6a+ 12b+ 18c

Hope this is correct...plz let me know
you would just multiply 6 to each number in the parentheses
Answer: 6a + 12b + 18c

Pls help! Ill give brianliest.

Answers

B is the answer ...........

WILL GIVE BRAINLY TO CORRECT ANSWERS

Someone tell me where each one belongs

Answers

A- false
B-false
C-true
D-true
E-false
F-false
G-true
H-true

Hope this helps

Answer:

A=false

b= false

c=true

d= true

e=false

f=true

g=true

H=true

Step-by-step explanation:   IM NOT SURE ABOUT E OR H

need help, please frfr tho

Answers

the closest one is def point 9

Good luck man sorry I just have to answer to ask questions good luck tho

Can u guys help me figure this out and if you can't say it in the comments not put it as your answer pls help this is the last science assignment i have to do today and i really need help with this

Answers

Answer: Its with kinetic and potential energy.

Step-by-step explanation:

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