1)What if you have two equations equal to y? How do you solve for x?
2)If you need to solve for a variable to substitute, what is your first step?
3)What does it mean to substitute for a value?

Answers

Answer 1

Answer:

Step-by-step explanation:

If you have two equations for y, eliminate y by setting these two equations equal to one another.  Solve the resulting equation for x.  Then substitute your x value into one of the equations for y.  Write your solution as (x, y).

2)  If you need to solve for a variable to substitute, what is your first step?  Example:  If you have two equations for y, eliminate y by setting the two equations equal to each other.  This decides for you that you must solve for x.

3)  What does it mean to substitute for a value?  Example:  If you have y = 3x and 2x + y = 17, replace y in the second equation with 3x.  This eliminates y and allows you to solve for x.


Related Questions

Pls help mei really need this right now!
:)

Answers

Answer:

39

Step-by-step explanation:

Square Area

8-3 to get the right side of the square which equals 5. So the square is 5*6=30

Triangle Area

To get the area of a triangle the formula is a=b*h*1/2, so base is 3 and height is 3, we would do 3*3*1/2 which equals 4.5

but you have 2 triangles so multiply 4.5*2 and that's 9.

Conclusion

So, 30+9=39

Answer:

39

Step-by-step explanation:

To find the average of a set of numbers, add up all the items and divide by.

A. 2
B. The maximum
C. The minimum
D. The number of items

Answers

D. The number of items (items being numbers)
The answer is D I think

What is the answer for 14 times 50

Answers

Answer:

700

Have a nice day!

Answer:

700

Step-by-step explanation:

Use long multiplication to evaluate.

700

Hope this helps you!

Please help me and can you write and explanation too please.

Answers

Answer:

103.5 ....................

I thino the awnser is 103.5

I need help with this (giving brainliest)

Answers

Answer:

R=110 degrees

B=110 degrees

Step-by-step explanation:

R and B are the same angle, we minused the mesure of G and since angle O is same as the other angle we multiplied 60 by two and then added 20 which gave us 140

360-140=R+B

220=R=B

110=R

110=B

Answer:

m<R = 120 degrees, m<B = 100 degrees

Step-by-step explanation:

1. i found the blue line and the angle of any line is 180 degrees

2. since angle O is 60 you have to subtract it from 180 -60 = 120 = m<R.

3. this one is more complicated you have to subtract angle O and angle G which is 20 degrees so you add 20 + 60 = 80 and then you take the sum and subtract it from 180: 180 - 80 = 100

Answer this question please and thank you.

Answers

Answer:

39

Step-by-step explanation:

1287/33=39

Help me please- not multiple choice

Answers

Answer: im not absolutely sure, but i think A

im pretty sure it is A

Which expression is equivalent to 6 times the sum of 8 and a number, n?

Answers

Answer:

6(8 + n)

Step-by-step explanation:

6(8+ n hope this helps

1. A box of pencils is 5 1/4 inches wide. Seven pencils, laid side by side, take up 2 5/8 inches of the width.

How many inches of the width of the box is not taken up by pencils. Show your reasoning.

2. All the pencils have the same width. How wide is each pencil? Show your reasoning.

Answers

Answer:Width of box is not taken up by pencils =  2 5/8

Step-by-step explanation:

5 red marbles, 6 green, 2 blue. what is the probability of not picking blue

Answers

Answer:

11/13

Step-by-step explanation:

this is because if you add all the possibilities, it = 13 and since you WANT TO FIND THE PROBABILITY OF NOT PICKING BLUE minus 13 by 2 which is 11.

Answer: 11/13


Step-by-step explanation:

A Punnett square is a grid used to show possible gene combinations for the offspring of two parents. In the Punnett square shown, a boy is represented by XY. A girl is represented by XX.

Complete the Punnett square.

Answers

The punnet square is showing that
it would be XX top left, XX top right, XY bottom left, XY bottom right

can someone please help me?

Answers

1/36 because you have 36 different possibilities when rolling it twice and getting and a 4 then a 6 is only 1 possibility out of the 36
1/4 because there is 3/6 chance on one roll and second roll
We said with 2 rolls there is 36 possibility (6x6)
So 3x3=9 which the amount of possibility to get a even number
9/36 simplify is 1/4 (divided by 9 the top and bottom)
Hope this helps!
Hahah my insta is ___genan___
A Because I have gotten the same question before

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
Martha is mixing up different color candies for treat bags. She used of a pound of yellow candies, of a pound of red candies, of a pound of green candies, and of a pound of blue candies.
How many pounds of blue and green candies were used for the treat bags?

Answers

Answer:

Martha has diabetes

Step-by-step explanation:

Martha used 2 pounds of blue and green candies for the treat bags.

8. Explain why 30+1 = 6 is the same as 30 -/-/--/-X-X = 0. What is
the value of x in this example?

Answers

Answer:

5

Step-by-step explanation:

5 because of two ways one you could do 6*what is 30. Or you could do repeated addition 30=5+5+5+5+5+5. But when you do 30=5-5-5-5-5-5. You are doing repeated subtraction which is equivalent to 30-5*6= 0.

Hope this helps more than the link! :)

the answer if 5 because because you can first divide 30 by 6 then get 5, and you can check that answer by subtracting 6 from 30, 5 times -hope this helps

PLEASE HELP AND THANK YOU I NEED IT ASAP

Answers

Answer:

dog

Step-by-step explanation:

the dog fell on the cat then the cat fell on the rat then the trat fell on the mouse and the owner ran out of the house

Answer:

a

Step-by-step explanation:

use desmossss

the radius or a circle is 25 meters what is the circumference

Answers

Answer:

157.08m

Step-by-step explanation:

here is how: C=2πr=2·π·25≈157.07963m

Convert: 67100 mm = _____ m?

Answers

Answer:

67.1m

Step-by-step explanation:

67100 divided by 1000 = 67.1m

Kaitlin owns 8 shares of a certain stock. Yesterday the total value of her shares went down by 64 dollars. What was the change in value for each share?

Please answer. No links. No explanation needed. Please and Thank you.

Answers

Answer:

$8.00

Step-by-step explanation:

(if I understood the problem wrong i'm so sorry!)

(please pick as brainleist!)

Answer:

You lost 8 dollars for each share

Step-by-step explanation:

plz help me, and go step by step on how to do it plz

Answers

• first you have to move the constant to the right hand side and change it’s sign
2s + 5 > 21
2s > 21 - 5
• now you substract 21 -5
2s > 16
• divide both sides by 2 to isolate the variable and you’ll get your answer
2s / 2 > 16/2
• the answer is
s > 8

Answer:

8 i believe

Step-by-step explanation:

At the Friendly Fuel Stop gas station, Sam filled 75% of his 12-gallon tank with gas. How many gallons of gas did Sam put into his tank? Pick the model that represents the problem.

Answers

He put 9 gallons in the tank

What is the growth rate of the following function? f(x) = 27(1.0075)* A 0.0075 % B 0.075% C 0.75% D 7.5%​

Answers

Answer: c

Step-by-step explanation:

Should be c because it’s most common

please help will mark brainliest

Answers

Answer:

The answer is B

answer:

c.962.51 in^3

step-by-step explanation:

so first we have to find the radius

in order to find the radius we divide 12 1/4÷2

which equals 6.125, now we have our radius

now we need to set up the formula

v=4/3πr^3

v=4/3π6.125^3

v=962.51

to check your work you can goo-gle volume of a sphere **you should get the same answer**

good luck :)

hopefully, this helps

have a nice day !!

Is x < -8 the same as. -8 > x

Explain

Answers

Answer:

yes its just flipped

Step-by-step explanation:

how do I get the answer like you don't even have to tell me the answer just tell me how to get the answer

Answers

you add the two fractions together
1/4+5/8
Make the denominators equal by finding the common denominator. Once you have that the fractions will look like
2/8 for bball hats and 5/8 for fishing hats.
After this you may now add or do what you have to in order to finish the problem.

pls answer we just started doing this today and my teacher expects us to know this :(

Answers

The answer is “Two and a half pounds of dark chocolate cashews cost $37.50”

Since 1 pound of cashews costs $15, you multiply 15 by 2, to get $30, then you multiply 15 by .5 since you still have half a pound left, which then gives you $7.5, then you add 30 to 7.5, which gives you the answer of $37.5

Classify the questions as statistical or not statistical.
How many hours a day do
the students in my class
watch television?
How many days a week did
each student in my class go
swimming in the last month?
How many students in my
class watch television?
How many students in my
class can swim?
How many TV shows did
each student in my class
watch yesterday?

Answers

Answer:

Statistical:

-How many TV shows did each student in my class watch yesterday?

-How many days a week did each student in my class go swimming in the last month?

-How many hours a day do the students in my classwatch television?


Non-statistical:

-How many students in my class watch television?

-How many students in my class can swim?

Not statistical

Statistical

Not Statistical

Not Statistical

Statistical

What is statistical?

The statistical is an arithmetic mean process, in that it adds up all numbers in a data set, and then divides the total by number of data points.

What is not statistical?

Questions that are answered with a single data point are not statistical questions because there is no variability in the data used to answer the question.

According to the given question

1). Not statistical. This question is answered by a single number. It is not not answered by collecting data that vary.

2). Statistical. This question would be answered by collecting data ,and there would be variability in the data.

3). Not Statistical. This question is answered by single number. It is not answered by collecting data.

4). Not statistical. This question is answered by a single number. It is not answered by collecting data that vary.

5). Statistical. This answer would be answered by collecting data because we have to collect the data for each student that how many TV shows they watch.

Learn more about statistical and not statistical here:

https://brainly.com/question/11253919

#SPJ2

⚠️MATH QUESTION⚠️ Angle Similarity

Answers

Answer:

5 in.

Step-by-step explanation:

If you can see, Triangle ABE has the side with 10 in. and 25 in. on the other side and Triangle FCD has one side with 15 inches, so the bottom one should be 5 in. because decreasing size.

I’m not very sure but I’m pretty sure it’s 5

Giving brainliest


Triangle PQR is transformed to triangle P′Q′R′. Triangle PQR has vertices P(8, 0), Q(6, 2), and R(−2, −4). Triangle P′Q′R′ has vertices P′(4, 0), Q′(3, 1), and R′(−1, −2).


Plot triangles PQR and P′Q′R′ on your own coordinate grid.


Part A: What is the scale factor of the dilation that transforms triangle PQR to triangle P′Q′R′? Explain your answer. (4 points)


Part B: Write the coordinates of triangle P′′Q′′R′′ obtained after P′Q′R′ is reflected about the y-axis. (4 points)


Part C: Are the two triangles PQR and P′'Q′'R′' congruent? Explain your answer. (2 points)

Answers

(A) The scale factor of the dilation that transforms Triangle PQR to Triangle P'Q'R'  is 1/4

(B) Coordinates of Δ P"Q"R"

P" (-1,0)

Q"(0,-1)

R"(2,-1)

(C) Triangles PQR and P"Q"R" are not congruent.

Given

ΔPQR is transformed into ΔP'Q'R'

Coordinates of P, Q, R are

P (4,0),

Q(0,-4)

R(-8,-4)

Coordinates of P'Q'R' are

P'(1,0)

Q'(0,-1)

R'(-2,-1)

(A) By Distance formula we can find the distance between P Q and P'Q'

Distance formula =

Where D = Distance between two points

from distance formula we can write that

PQ =

Similarly

P'Q'=

PQ /P'Q' = 4

hence the scale factor of dilation is 1/4 (Compression)

(B )The Coordinates of Reflection about y axis can be written for a point

So the Coordinated of Δ P"Q"R" can be written as

P" (-1,0)

Q"(0,-1)

R"(2,-1)

(C) ΔPQR  and ΔP"Q"R" are similar triangles but they are not  congruent because their sides  are not equal in size.

Find the value of x.

Answers

Answer:

do 180-110= 70

Step-by-step explanation:

Every Sunday morning, Opal, Lisa, Talia, and Cora meet for breakfast at the Bagel Shop.

They share the bill equally and each pay $2 toward the tip. The expression 1/4x +2 represents
the amount each friend pays, where z is the amount of the bill before the tip.

Answers

Z is going to be $8 less than the grand total hope it helps

The term 1/4x represent the amount each friend pays bill before the tip.

And, The term 2 represent the amount each friend pays towards the tip.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expression is,

⇒ 1/4x + $2

Which represents the amount each friend pays.

Where, x is the amount of the bill before the tip.

Now,

Since, The expression is,

⇒ 1/4x + $2

Where, x is the amount of the bill before the tip.

Hence, We get;

The term 1/4x represent the amount each friend pays bill before the tip.

And, The term 2 represent the amount each friend pays towards the tip.

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ2

The complete question is shown in figure.

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