Mathematics Middle School

Which equation has exactly one solution?
A.0.5(3x- 9) + 20 = 0.5(3x- 49)
B.0.5(3x- 8) = 20 (0.5x - 1)
C.0.5(3x- 9) + 20 = 5(4x- 1)
D.0.5(3x- 9) + 20 = 0.5(3x- 1)

Answers

Answer 1

Answer:

C

it is what it is

Answer 2
C should have only one solution the others have more than one

Related Questions

Angelica is deciding which bank would give her the best simple interest rate on a $300 deposit. One bank says she will have $320 in her account if she leaves the principal for 2 years. Is this enough information for Angelica to find the interest rate?

PLEASE HELP

Answers

Answer: No. I don't believe that is enough information.

Step-by-step explanation:

Answer: No

Step-by-step explanation:

You'll need to know what the second bank will do before deciding.

I need help with this question attached

Answers

Answer:

17 feet

Step-by-step explanation:

The structure is shaped as a right triangle.

Use the Pythagorean theorem to solve for 'c' or the hypotenuse.

[tex]a^2+b^2=c^2\\\\8^2+15^2=c^2\\\\64+225=c^2\\\\289=c^2\\\\\sqrt{289} =\sqrt{c^2}\\\\17, -17 = c\\\\\text{Disregard negative value.}\\\\\boxed{17=c}[/tex]

The hypotenuse should be 17 feet.

Hope this helps!

Answer: 17 ft.

Step-by-step explanation: By using the pythagorean theorem (a^2 + b^2 = c^2) for right triangles, you should be left with the given equation after plugging in the values of the legs:

8^2 + 15^2 = c^2

Now simplify the squares

64 + 225 = 289 (c^2)

Now to find the exact value of the hypotenuse (c), square root the value of c^2.

√289 = 17

The hypotenuse of the triangles is 17 ft.

why would a prism beat a sphere in a competition?
A.GO FOR THE CUBE
B.NO ONE HAS THE EDGE
C.IT CAN NOT WINN

Answers

Answer:

B.

Step-by-step explanation:

I need to know the answer for this question please

Answers

Answer:

Step-by-step explanation:

7 to C

8 to a

9 to d

10 to b

7 to C I think i’m not sure about the others.

Sheldon harvests the strawberries and tomatoes in his garden.

Sheldon also picks tomatoes from his garden. He picked 5310 kg, but 1.5 kg were rotten and had to be thrown away. How many kilograms of tomatoes were not rotten? Write an equation that shows how you reached your answer.

Answers

Answer:

5310-1.5=x

x=5308.5

Step-by-step explanation:

what is the answers please will give brainliest

Answers

1. 8
2. 2.625
3. 16
just divide lol
1.8
2.2.625
3. 16
Just use a calculator really isn’t that hard but hey we have all been there

pleasee help asap i dont have much time worth 10 points

Answers

the answer is E
step by step explanation:
the answer is E. to get it you subtract the exponents and go letter by letter. you got this keep it up!

Gavin and Ethan are training for a race. Last week, Gavin ran 7 kilometers, and Ethan ran twice as far as Gavin. What is the total distance that Gavin and Ethan ran last week? Express your answer in meters.

Answers

They ran 21 kilometers in total
Gavin + Ethan = 21 kilometers

Andre draws this tape diagram for 3 ÷ 2/3

Andre says that 3 ÷ 2/3 = 4 1/3 because there are 4 groups of 2/3 and 1/3 left. Do you agree with Andre?

Explain your reasoning. (please explain thats all i really need)

Answers

Answer:

use mathaway

Step-by-step explanation:

Bobby is planning his birthday party. Cupcakes come
in packs of 12 and cookies come in packs of 10.
If Bobby wants the same amount of each item,
what is the minimum number of cupcakes and
cookies he will need?

Answers

He would need 5 packs of cupcakes which would be 60 cupcakes and we would need 6 packs of cookies to also have 60
Yeah 5 packs for cupcakes for 60 and then 6 for cookies for 60 because 5 times 12 = 60 and 6x10 =60

simplify - 2/3x + 6 + 1/5y -1/4x -3/10 y +3

Answers

Answer:

5x/12 - y/10 +9

-11/12x + 46/5 - 3/10y

what is the solution

Answers

Answer:

1+1=a a=solution

Step-by-step explanation:

The solution is 1+1=a

Thirty-nine points IF answered correctly. Please don't put nonsense. I really need help. There's a line plot, and I need to find (out of the answer choices in the black box) which four letters match; one, two, three, and four. I'm getting the definite wrong answer, so help?

Answers

Answer:

do you still need help?

Step-by-step explanation:

Find the value of c in the triangle shown below.

Answers

Answer:

x=6.40312 rounded to 6.4

Step-by-step explanation:

Answer:

The answer is going to be 6.4 Hope it helped

Step-by-step explanation

Find the circumference of a circle with a radius of 6 inches. Use 3.14 for pi.

Answers

Answer:

37.7in

Step-by-step explanation:

Took the test

In the same year, the average finishing time for u.s. women was four hours and 41 minutes. What was their average speed in miles per hour?

Answers

Answer:

They never asked the question properly. They never said how many miles equals four hours and 41 minutes.

Step-by-step explanation:

need this done by today! 2-2-2021

Answers

Answer:

D

Step-by-step explanation:

Mark me as brainliest

Answer:

D

Step-by-step explanation:

took the test

Scarly bought 3 pounds of cashews. Each pound of cashews cost $2.98. She paid with a $20 bill. How much change did Scarly get back?

Answers

Answer:

Answer:

Part a) Mr. Paul bought 14 oz of cashews

Part b) Mr. Paul bought 12 oz of walnuts

Part c) Mr Paul bought 2 oz more of cashews than walnuts

Part d) Mr Paul bought 2 more ounces of nuts than Mrs Toombs

Step-by-step explanation:

Part a) How many ounces of cashews did Mr. Paul buy?

Remember that

To convert lb to oz multiply by 16

we know that

Mr. Paul bought 7/8 lb of cashews I think hope this helps:)

Step-by-step explanation:

Answer:

11.06

Step-by-step explanation

2.98*3=8.94

20-8.94= 11.06

please help solve this, I can't figure out how to do it

Answers

Here is a picture that might help you, if you need more help just ask.

i can't figure it out either !

HELP FOR BRAINLIEST AND #$ POINTS

Answers

Answer:

A. Yes

B.120 miles

C.20=1x

Step-by-step explanation:

Answer:

A) Yes

B) 110

C) 1x is 20y

Step-by-step explanation:

I’m confused can someone explain?

Answers

Answer:

It is 150 percent

Step-by-step explanation:

You can find this value by dividing the numerator by the denominator, summing this value to the integer part and multiplying the result by 100%, so:

1 1/2 in percent = (1 + 1/2) × 100% =

(1 + 0.5) × 100% = 1.5 × 100% = 150%

Hope this helps! Sorry if I'm wrong.

Answer:

150%

Step-by-step explanation:

112=1+12

i know that

12

is the same as

1÷2

Therefore:

112=1+(1÷2)

Then using

Long Division for 1 divided by 2

we have

=1+0.5=1.5

Converting our number to a percentage:

1.5×100

=150%

i need BIG help with these questions.

Answers

Answer:900

Step-by-step explanation:

2100/1 X 3/7 = 2100X3/7 = 6300/7 = 900

$800 at 3.8% interest for 6 months
What is the interest?

What is the new balance?

Answers

Use the equation I/PT = R I is the interest P is the money before investment and T is the time
Multiply then divide

Nick spends 12$ to buy 16 oranges. How much does Nick snap per orange
A. $0.25
B.$0.75
C.$1.33
D.$4.00

Answers

Answer:

B. 0.75

Step-by-step explanation:

hope it will help u

plz follow me

Answer:

0.75

Step-by-step explanation:

12=16

divide

6=8

divide

3=4

divide

1.5=2

divide

0.75=1

Make sure to check your work!


Question Help
A bag contains 7 green marbles and 14 orange marbles. If a representative sample contains 3
green marbles, then how
many orange marbles would you expect it to contain?

Answers

Answer:

I think 6

Step-by-step explanation:

Why I think six is because 7+7 or 7*2 is 14 so therefore if there are 3 their should be six because 3+3 or 3*2 equals 6

Answer:

6 Marbles

Step-by-step explanation:

Hurry I’m being timed!!!!

Answers

Answer:

-50

Step-by-step explanation:

Can you PLEASE answer number 16 and 18!

Answers

For 18 I think it’s A :)

Answer:

number 16 is c

y = 5x + 8

y = 5(-6) + 8

y = -30 + 8

y = -22

y = 5(-3) + 8

y= -15 + 8

y = -7

What does x=

what is the statement true or false.

Answers

Answer: X= -14

Step-by-step explanation:

2x-5x-6=36

3x-6=36

36+6 =42

-3x=42

42÷-3

X= -14

It’s X=-14 hopefully this helps you:)

Please help! Geometry:

Answers

Answer:

x=29

Step-by-step explanation:

the line in the middle of the triangle is at a right angle, so each side of it must equal 90 degrees, so then 90=3x+3, 90-3=3x then you simply, 87=3x which equals x=29.

The answer to your question is x=29

Juan builds a square dog pen that has an area of 100 square feet. He then builds a second pen that has an area of 49 square feet. Which is the closest to the percent of the decrease in the area of the pen? *
IT IS NOT 221

Answers

Answer:

51%

Step-by-step explanation:

Simple. 100-49=51

51..............................................
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