Mathematics Middle School

Which equation has exactly one solution?

Which Equation Has Exactly One Solution?

Answers

Answer 1

Answer:

true

Step-by-step explanation:

Answer 2

Answer:

the top right one

Step-by-step explanation:

x would equal 2z

Related Questions

HELP SMART PPL!!!!!!!!!!!!!!!!!

Answers

Answer:

33.75

Step-by-step explanation:

45x0.75=33.75

i need help with this plssssss

Answers

Answer:

25 miles

Step-by-step explanation:

2.5/10=x/10

25= x

25 milessssssssss.....

Pls help ASAP!! I will mark brainliest!!

Answers

Answer:

fdsdcfvbnju74y6t54re

Step-by-step explanation:

you have to find the mean and median

Please help!!!!! I will Mark Brainliest :(((

Answers

The answer is 24.10!!!

FIRST CORRECT ANSWER GETS THANKED, 5 STARS, AND BRAINLIEST!!!
Solve the System using Substitution

y=2xy = 2 x

3x+y=20

Answers

Answer:

Step-by-step explanation:

What is the volume of the prism

Answers

Answer: it may be 85 but i didnt get anything else

Answer:

270 in^3

Step-by-step explanation:

A family spent $65 on dinner and left a 20% tip. What was the total cost of their meal?

A. $85

B. $78

C. $67

D. $13

Answers

Answer: B, $78

Step-by-step explanation:

If the tip is 20% of the dinner cost, then we have to first find what is 20% of 65.

20% x 65 = 13. So the tip for the dinner is 13 dollars.

Now we have to add it to the original dinner cost.

65 + 13 = 78.

Therefore, the total cost of their meal is 78 dollars. So the answer is B, $78!

Answer: A

Step-by-step explanation:

the total cost of their meal it usally means how much in total so we add 65+20 = 85

Select all the equations that represent the hanger.

Answers

Answer:

i dont think b is correct because x(x)(x) would be x ^3

Step-by-step explanation:

if you put in 5 as an example then you would see that 5(5)(5) is actually 125 and not 15 like 3 times 5

Answer:
B I’m not sure?

I will give brainliest. Help plz!!!!!

Answers

5:2 and 14:8 are not proportional, 3 to 4 and 24 to 18 are also not proportional, 5:6 and 2:8 are also not proportional, and 7 to 4 and 17.5 to 10 are also not proportional. 7 inches in 9 hours and 42 inches in 54 hours is proportional. 12 players from 21 teams and 15 players from 24 teams are NOT proportional.

John wants to predict the frequency of rolling a 4 or 5 using a 6-sided dice with numbers one through six. Which of the following is the closest to the prediction if the number cube was rolled 600 times?
A: about 200 times
B: about 120 times
C: about 100 times
D: about 16 times

Answers

Answer: the answer is 120 or b

Step-by-step explanation: the answer is b

There is a 3/8 chance that it will snow before the end of February. What decimal is equivalent to the fraction?

Answers

1/8 means 1 divided by 8 which is 0.125 3/8 is 3 times this so 0.375
3/8=0.375
Explain=3 divided by 8= 0.375

i need help with this question attached pls

Answers

Answer:

sqrt of 31 or 5.58

Step-by-step explanation:

Side note:

just do this part of the math and you might get it right. but just saying. I not sure.

How to get. I think:

subtract 30 by 16. and you will get it. (Well dont forget to round tho. :p)

If you can solve 20 points. Good luck

Answers

Answer:

Step-by-step explanation:

63 gallons

Answer:

Since 30% of 90 is 27, the average person approximately uses 32 gallons of water per day.

Step-by-step explanation:

I used Siri and echo dot. Multiply 30% by 90 to get 27.

PLEASE HELP:
What is the measure of the angle that is complementary to
a) 18° _______
a) 25° _________
a) 82° _________
a) 75° _________
Thank you so so much!!! :D

Answers

Answer:

a) 72

b) 65

c) 8

d) 15

Step-by-step explanation:

Answer:

72

65

8

15

Step-by-step explanation:

subtract 90 from each angle to get the answers

Giving brainliest!!!!!!!!!

Answers

Answer:

b

Step-by-step explanation:

guys can you please follow my insta it would really help me its certified_simp_lord

it’s 15 so B hope this helped

The students in Ms. Douglas’ class worked so hard this year that she has planned a surprise, end-of -year trip for them to a local amusement park. The school principal allows Ms. Douglas to spend a budget of $500 on the trip.
So far she knows :
A coach bus costs $180 to transport them to and from the park.
Price of admission to the park is $15 per person

Part A : Write an inequality that describes that how many students Ms. Douglas can bring on the trip. Define the variable


Part B: Solve the inequality and explain the solution in the context o the problem

Answers

Answer:

Part A: 180+15x=500

B: x = 21.333 or 21

Step-by-step explanation:

So in part A since you have 500 to spend and 180 goes to the coach bus, you are left with $ 320 to spend on the students and when you divide 320 by 15, (since the tickets for admission are $15) you end up with 21.333, but since you cant bring .333 of a student on a trip you can bring 21 students, but you can buy 21.333 tickets.

Answer:
A) 15x+180 ≤ 500
B) 33 people can go on the trip to not exceed the budget.

Steps:

15x+180 ≤500
Subtract 180 from both sides

15x ≤ 500
Divide both sides by 15 to isolate x(make sure to flip the sign since you are multiplying)

x ≥ 33.333

Therefore, only 33 people can go on the trip to not exceed the budget.

what is the answer?
s/2=

Answers

Answer:

0.5 seconds

Step-by-step explanation:

s = second

s/2 = 0.5 seconds

Answer:

0.5 Seconds

Hope this helped :)

HELP ME PLEASE IT IS DUE TODAY I DON'T UNDERSTAND ANY OF THIS

Answers

Answer:

first pic: A and C

second pic: i dont know for A, B = w + 1.4, C = 3y = 5.1, D = z + 1/3 = 1/2

third pic: a. 2x = 14.62 b. there are 2 x's on one side, and 1 number on the other, which can be taken as the answer to 2x. if we can do 2x = 14.62, we can do 14.62 divided by 2 to get the other number x, 14.62 divided by 2 = 7.31. c. i don't know

after this

Step-by-step explanation:

I really hate math wish teachers would give us a break

Help plz
Write an inequality for this situation.
There are more than 38 chickens in the chicken house.
A. number of chickens > 38
B. number of chickens < 38
C. number of chickens [tex]\leq[/tex] 38
D. number of chickens [tex]\geq[/tex] 38

Answers

A is the awnser because it’s is saying 38 more
number of chickens > 38 because there are more so you use greater than sign

plzzzzzzz hel;p plzzzzz and tyyyyy

Answers

The answer is C because it looks like q=-1 and p=3. 3-1= 2

please help me on the bottom question

Answers

Answer:

z=485

Step-by-step explanation:

You want to have just z on one side, so you would add 321 to both sides. Then you have your answer, so:

z=164+321

Simplify:

z=485

add 321 to both sides= 485


Bro ski I rlly need help wit this one

Answers

is it -6? that’s what it looks like but i’m not 100% sure
Dueiiejhabavqggqhwhsueu

I need help...............................

Answers

Answer:

Step-by-step explanation:

First box:4/52

Second box:4/52

Third box:4/52, 4/52, maybe u combine it

Fourth box:4/52, 4/51

Fifth box:4/52, 4/52 or combine

Sixth box:4/52,4/51

Seventh box:8/52, 8/52, or combine

( hope this helps )

what's the unit rate please help

Answers

Answer:

20/27

Step-by-step explanation:

5/9pg/3/4min

=5/9*4/3

20/27 pg per minute

Answer:

5/9*4/3 = 20/27

hope this helps

A population of 65 foxes in a wildlife preserve triples in size every 13 years. The function y=65 x 3x, where x is the number of 13-year periods, models the population growth.How many foxes will there be after 39 ​years?

Answers

Answer:

585 I hope this helps!

Step-by-step explanation:

You will first divide 39 ÷ 13 and get 3.

Then you will take 3 and multiply it by 3 to get 9

After you will multiply 65 by 9 and get 585.

And thats your answer

There would be 585 foxes

Please help

What is the measure of ∠c?

Answers

It’s 56 bc a straight line = 180 so 180-124=56

Consider the division equation "30/5=?". Select the TWO multiplication equations that correspond to the division equation.

Answers

Answer:

5x?=30 and ?x5=30

Step-by-step explanation:

First of, these 2 are both the same, and the communitive property applies to both.

The question example is in division, since the communitive prop. doesn't apply on division, it would be almost impossible to find another answer in division form. 5x? Is asking 5 times what equals thirty, so we are using what we know to figure it out. Sorry, I can't provide a good explanation :<

OK. these questions are worth ALL my points (55) !

Write the opposite of each integer.
1. 7

2. -212

3. 49

4. 1,991

5. -78

6. 16




Find each absolute value

7. l -2 l

8. l -100 l

9. l -16 l

10. l 16 l

11. l 12 l

12. l 75 l

13. spend 20$

14. ride the 12th floor on a elevator

15. 8 degrees below 0 degrees centigrade

16. dive 10 feet below the waters surface

17. earn $15

18. gain of 1,400 feet in elevation
----------------------------------------------------------------------

Answers

Answer:

1. -7

2. 212

3. -49

4.-1,991

5. 78

6. -16

7. 2

8. 100

9. 16

10. 16

11. 13

12. 75

13. |12| = 12

14.|12| = 12

15. |8|

16.| 10|

17.15

18. 1,400

Step-by-step explanation:

PLZZZ HELP MEEEE im in desprite need

Answers

Answer:

105

Step-by-step explanation:

In a laboratory experiment, two mice will be placed in a simple maze with one decision point where a mouse can turn either left (L) or right (R). When the first mouse arrives at the decision point, the direction it chooses is recorded. Then, the process is repeated for the second mouse.

The tree diagram should be drawn where the first stage represents the decision made by the first mouse and the second stage represents the decision made by the second mouse.

Determine all four possible decision outcomes for the two mice.

Answers

Mouse 1                           Mouse 2

R                                          L

L                                          R

L                                            L

R                                           R

Answer:

this is the link for the problem but it also shows you everything you need to know also all the answers

Step-by-step explanation:

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