Mathematics Middle School

Identify which equations have one solution, infinitely many solutions, or no solution.
3/2x + 2.3 – 1/2x = 4.3 + x
2x + 2/3 = 2x + 4/5 – 4x
17/4 + 4.2y - 9/4 = 2.2y + 6 + 2y - 4
5r + 2 = 6r + 3 – r
-2x + 2 + 4x = 16/5 + 2x - 6/5
3.2p – 2.5 + 2.1p = 5p – 7/2

Answers

Answer 1

Answer:

1. have one solution

2. have many solutions

3. have one solution

4. have one solution

5.have no solution

6. have many solutions

sorry if I'm wrong

Related Questions

a.Find three different ratios that are equivalent to the ratio .
b.Explain why your ratios are equivalent.

Answers

Step-by-step explanation:

a.14.6. b.when u multiply both part of ratio by the same number you make ur ratio....so we we're dealing with a ratio,if we r multiplying or(dividing)both part of it's by the same number we are creating equal ratio

Answer:

EXAMPLE: 2,3 = 4,6 = 6,9

Step-by-step explanation:

THESE ARE ALL EQUIVALENT BECAUSE... you are just multiplying each number by the same factor. 2x2=4 and 3x2=6 this gives me the next ratio of 4,6. But only multiply the first given ratio to find the next.

the following equation has been solved incorrectly. Explain the students error​

Answers

On the right side of the equation, when the student combined like terms, 7x and -4x, they did not combine them correctly. Instead of combining them correctly, the student forgot to include the sign of the -4x which caused the sum of the two terms to be 11x instead of 3x. Hope this helps!
What he said ^^ no problem

Enter the first four terms of the sequence.
f(1)= 10 and f(n)=2xf(n-1) + 5 for each whole number n greater than 1.
The first four terms of terms of the sequence are __, __, __, __.​

Answers

The answer is 5, 10, 89 , 90

Please help me please

Answers

Answer:

6 days

Step-by-step explanation:

Answer: 13

Step-by-step explanation:

for me it is easiest to make circles and fill in the numbered circles on which days are the chosen days

ex:

Neighbor 1:  1 circle, 2 circle, 3 circle, and 4 circle: fill it in

Neighbor 2: 1 circle, 2 circle, 3 circle: fill it in

You might have experienced static electricity and even felt a mild shock. Think about what you observed. Then write down one or two questions about static electricity based on your observations.

PLEASE HELP!!!

Answers

Answer:

mild shock: 1. why did i feel electricity through my whole arm?

static: 2. how did i make electricity from rubbing a balloon on my hair?

Jerri was using a recipe for a large cake that required one-fourth of a tablespoon of cinnamon. Instead of making one large cake, Jerri decided to use the recipe to make three small cakes. How much cinnamon should she use for each of the three small small cakes?

Answers

Im pretty sure you would put 1/12 tablespoon of cinnamon in the cakes individually. You would divide 1/4 by 3. It's pretty simple. If that's not the answer I apologize dearly!

Answer:

1/12 of cinnamon

Step-by-step explanation:

14 divided by 3= 1/12 in fraction form

58+0=58 is the property of what?

Answers

Its additive identity. Additive identity means that if you add zero to any number, the number will stay the number itself only.
Addiction because it’s adding

I hope this is right

Answers

Answer:

Laverska untyska masctera   A.)

Step-by-step explanation:

Unski  :)

Which linear equation represents a proportion relationship?

A) y = x + 2

B) y = 3x + 0.2

C) y = -0.3x

D) y = 3x + 4

Answers

Answer:

C

Step-by-step explanation:

C because in proportions your multiply and divide, not add or subtract. Example: 2/3=4/5 is 2x5 and 3x4 which equals to 10=12 therefore 2/3=4/5 is not proportional. If they equaled they would be proportional.

Answer:

B. y = 2 • 0.3x

Step-by-step explanation:

i took the Exponential and Logistic Functions

Lab Assessment on edge

What is Earth's interior like?

Answers

Answer:

The Earth is divided into three main layers. The dense, hot inner core (yellow), the molten outer core (orange), the mantle (red), and the thin crust (brown), which supports all life in the known universe. Beneath the Moho is the mantle, the viscous layer that makes up more than half of Earth's volume.

Step-by-step explanation:

In the past 4 months, Collin has lost 8 pounds, gained 9 pounds, lost 3 pounds, and lost another 5 pounds. Find his total change in weight.

Answers

total lost is 7

hope this helps!
7 is the total weight

Laura wants to place one flowerpot every meters along the path from the gate to the main entrance of her home. The path is meters long. How many flowerpots will she need?
A. 16

B. 12

C. 9

D. 6

E. 4

Answers

Answer:

im guessing 12

Step-by-step explanation:

PLEASE PUT THE REAL ANSWER!!!!!! FOR BRAINLIEST TOO

Answers

Answer:

When you do 68,000/6.8 you get 10,000.

Answer:

10,000

Step-by-step explanation:

You have the empty box clicked in the problem. It says "now divide 68,000 by 6.8." It gives you that hint so you know what to do. Let's do what it tells us.

68,000 / 6.8 = 10,000

Best of Luck!

A rectangle has side lengths of 6 cm and 9 cm. What would the side lengths of the image be after dilation of 2.25? Explain your reasoning. PLS HELP DUE TODAY

Answers

Answer:

The side length will be 12 and 12

Step-by-step explanation:

6x9=54 then divide it by 2.25 = 24 and divide 24 by 2 = 12 and 12

im pretty sure all you have to do is multiply.. 6 times 2.25 equals 13.5 and 9 times 2.25 equals 20.25. hope that helps, but i'm not entirely sure

Help!!! Show your work

Answers

27.

use neative rule

1 / (1/4 )

then invert and multiply

answer 4

28.

negative rule

1 / (2/5) ^2

then division dis

1 / (2^2/5^2)

simplify 2^2 to 4

then simplift 5^2 to 25

invert and mul

answer 25/4

29.

negative rule

1/ (-1/3^3)

then division dis

1 / (-1/3^3)

simplify 3^3 to 27

move negative sign to left

invert

answer -27

30.

negative rule

1 / (-2/3)^3

since the power of 3 is odd, the result will be negative

1/ -(2/3)^3

division dis

1/ - (2^3 / 3^3)

simplify 2^3 to 8

simplify 3^3 to 27

move negative sign to left

invert

- 1 / - (8/27)

answer - 27/8

(239820491+122389102938)+(32193846789231+2318947291392918)=
helppppp

Answers

Answer:

2.3512638e+15

Step-by-step explanation:

Answer:

9160427909696018

Step-by-step explanation:

Add 239820492 and 122389102938 first then add 32193846789231 and 2318947291392918 after that you should get 5538331970316018 and 362209593938 and add them together and u should get 9160427909696018

Lana used 1 ½ gallons of paint to paint 3/4 of her bedroom room. How much paint is needed to paint the whole room

Answers

Answer:

2

Step-by-step explanation:

Factor the numerator and denominator and cancel the common factors.

Answer:

2 Gallons

Step-by-step explanation:

(1× 1/2) = 3/4 [Can also be written as -> (1/2 + 1/2 + 1/2)

(1/2) = 1/4

(1/2 × 4) = 4/4 = 1

(1/2 × 4) = 2

A diver is 20 feet below the surface of the water. Which point on the number line best represents this location?

Answers

Answer:

-20

Step-by-step explanation:

Its -20 on the number line

-20 is the point on the number line best represents this location.

What is Number system?

A number system is defined as a system of writing to express numbers.

A number line is a picture of a graduated straight line that serves as visual representation of the real numbers.

Given that A diver is 20 feet below the surface of the water.

We have to find on the number line best represents this location

The point is -20 because it is given that the diver is 20 feet below.

As it is given below we have to consider the negative sign.

Hence, -20 is the point on the number line best represents this location.

To learn more on Number system click:

https://brainly.com/question/22046046

#SPJ2

A practice field is 250 feet long. The game field is 40% longer than the practice field. How long is the game field?

Answers

The game field is 350 40 percent for 250 is 100 and 250 plus 100 is 350

Based on the information given, the length of the game field is 350 feet.

Percentage

From the information given, it was stated that practice field is 250 feet long and game field is 40% longer than the practice field.

Therefore, the length of the game field will be:

= 250 + (40% × 250)

= 250 + 100

= 350

Learn more about percentages on:

https://brainly.com/question/24404697

which situation can be represented by this inequality? 12+18 bigger than 24d

A- the daily record charges a fee of 12$ plus 18$ per day to run an advertising campaign. the chronicle charges 24 per day to run an advertising campaign. after how many days will the cost of running a campaign in the chronicle be more than running advertising in the daily record..?
B- the amount abbey pays her dog walker is 24$ per day. chuck pays a flat fee of 12$ plus a fee of 18$ per day. after how many days will the amount chuck pays to be more than the amount abbey pays..?
C- tia charges 24$ per hour to do house repairs. Tim charges 12$ per hour plus a fee of 18$. after how many hours does it cost more to hire Tim than tia..?
D- a school band is selling pizza for 24$ each to raise money for new uniforms. the supplier charges a fee of 12$ per pizza and 18$ for delivery. after how many pizzas sold will the school band begin to make a profit..?

Answers

i’m pretty confident that it is C

HURRY!!! DUE TODAY!!!

Answers

Answer:

y= -1/4x+2

Step-by-step explanation:

Trust me on this one I am 100%

Lino answer is 100% correct

One number is 13 less than a certain larger number. Let x represent the larger number.

Suppose the results in part b,(2x-13) is 88. Write an equation expressing this fact.

I need helppp

Answers

X = 50.5
50.5 x 2 = 101.
101 - 13 = 88

(4^2-34)/4 6^2-12^2-14

Answers

Answer: 167173/1058 - BTW the answer is negative.
Hope it helps!!!

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.I NEED HELP WITH THIS ANSWER

plz help me and plz show work

Answers

Answer:

21. The slope is 50.

22. 0

23. y=50x

24. $2600

Step-by-step explanation:

21. The slope of the line is 50. Slope is defined as "rise over run". As the line increases, each segment moves up the y-axis by $50, and to the right on the x-axis 1 segment. (Work: 50 divided by 1)

22. The y-intercept is (0, 0), or simply 0. If you look at the graph you can see that the line crosses the y-axis at the origin. This makes the y-intercept equal to 0.

23. The slope tells you that the student makes $50 every week. The y-intercept is 0. Using the formula y=mx+b, an appropriate equation would be y=50x.

24. The equation found in problem 23 can me used to determine how much a student makes (y) after "x" weeks. Substitute 52 for x to solve for y. This becomes y=50(52). This can be simplified to y=2600. This means that after 52 weeks, the student will have made $2,600.

slope is 50
explanation idek

Help would be much appreciated T^T

Answers

For the translation, I believe it would be:
First; a reflection over the Y axis and the new points would be A(4,4) B(2,2) C(2,-1) D(4,1). (The Y value should be the same and the X axis should be the opposite)
Second; It should be moved three units down to get the points that A’ B’ C’ and D’ lie

I *think* they are congruent. I forgot what it exactly means, but they still have the same shape size and have all the same angles.

Hope this helps.
Nice job keep it up.

Johnny has 20 coins. They are nickels and dimes. If Johnny has $1.40, how many dimes does Johnny have?

Answers

Answer:

Step-by-step explanation:

I think you should subtract

Hope this helps you

Johnny would have 12 dimes. 12 times 10 = $1.20. Then, 8 nickels. 8 times 5 = $0.40.

So, Johnny would have 12 dimes and 8 nickels.

Plz Need Help Fast, I will mark brainilest

Answers

The answer is 3 I think

Please Help the picture down below
show your reasoning for 20 point

Answers

Bar ní queś bapeq bar bia

18.35-(-4)^3 (13.62-8.69)/32-4.08

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The answer to this question (18.35-(-4)^3 (13.62-8.69)/32-4.08) is 24.13
the answer to this is 24.13

theses are SOOOOO difficult 10 points if right

Answers

graph it like this:
This is it hope it helps
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