Mathematics Middle School

How many solutions does this system have?
x-y=-4
3x+y=8
one
ООО
two
a
an infinite number
no solution

Answers

Answer 1
This system has one solution.
(1,5)

Related Questions

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:

Write the equation of the line in slope-intercept form.

The equation of the line in slope-intercept form is

Answers

Answer:

y = 70x + 20

Step-by-step explanation:

Let me know if I am right

Y=70x=20 let me know if it is right

i need BIG help with these questions.

Answers

Answer:900

Step-by-step explanation:

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

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:

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:

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.

Tom and his friend Huck were painting a fence. After 1.25 hours, they noticed that they had only painted 3/4 of the fence. What is the rate per hour at which they are painting the fence?
Tom and Huck are painting the fence at a rate of___ of the fence per hour.

Answers

it is 1.25 divided by 3/4 but you have to convert it to decimals. so it is 1.25 divided by 0.75 ≈ 0.66
1.25 is the answer hope it helps

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

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

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.

Can someone find the answer

Answers

Answer:

it is B.

Step-by-step explanation:

B. can i have brainlyest please

What the person above me said is correct

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

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!


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:

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

Elimination Problem Please I Need HELP this makes me want to die lol

3y= -5x-3
y= -x+1

HELP ME PLEASE I BEGGGG

Answers

Answer:

(-3, 4)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Terms/CoefficientsCoordinates (x, y)Solving systems of equation using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

3y = -5x - 3

y = -x + 1

Step 2: Rewrite Systems

Equation y = -x + 1

[Multiplication Property of Equality] Multiply everything by -3:                   -3y = 3x - 3

Step 3: Redefine Systems

3y = -5x - 3

-3y = 3x - 3

Step 4: Solve for x

Elimination

Combine 2 equations:                                                                                   0 = -2x - 6[Addition Property of Equality] Add 6 on both sides:                                  6 = -2x[Division Property of Equality] Divide -2 on both sides:                              -3 = x

Step 5: Solve for y

Define original equation:                                                                               y = -x + 1Substitute in x:                                                                                                y = -(-3) + 1Simplify:                                                                                                           y = 3 + 1Add:                                                                                                                 y = 4

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

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:

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 !

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 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

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.

Order these three values from least to greatest. Explain or show your reasoning.
65% of 80
82% of 50
170% of 30


(Will give brainliest)

Answers

Answer: 82% of 50, 170% of 30, 65% of 80.

Step-by-step explanation: By converting the percentages to decimals (Shift the decimal point to the left twice for the percentages) and then multiplying them by the desired number, you will find the percentage of said number. In this case the numbers are 41, 51, 52.

Answer:

82% out of 50

65% out of 80

170% out of 30

Step-by-step explanation:

that's the correct answer

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!

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

can you give me the answer by 11 pm

Answers

355.30 or if rounded 355

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’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%

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:

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