Mathematics High School

1.
What is the solution of the system of equations?
y = 3x - 4
-3y = -9x + 12

Answers

Answer 1

Answer:

Step-by-step explanation:

-3(3x - 4) = -9x + 12

-9x + 12 = -9x + 12

0 = 0

infinitely many solutions

Related Questions

Max bought two items that were both on sale one item was 10% off and one item was 20% off max says that he saved 15% althogether is he correct?

Answers

Answer:

yes

Step-by-step explanation:

No, Max was wrong about his claim. Max saved 30% altogether.

Let the first item be (a) Let the second item be (b)

Discount Offer

a = 10%b = 20%

For the two items, the total discount that Max saved was

= (10 + 20)%

= 30%.

Averagely, if we are to determine the average discount for each of the items, we have:

= 30% ÷ 2

= 15%

So, on each item, Max saved 15% on average.

Therefore, we can conclude that Max saved 30% altogether for the two items.

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what is the perfect score between 144 and 169​

Answers

Answer:

154

Step-by-step explanation:

if you write down all the numbers in a line then you go from 169 and 144 equally to the middle you would reach 154

Answer:

Pfffftttt i wish i knew

Step-by-step explanation:

plz help me i dont understand this one​

Answers

Answer:

x^2y^5

Step-by-step explanation:

Simplify the expressions.

FREE BRAINLIEST! Are waffles really pancakes with abs?​

Answers

are you ok

and yes

waffles are way hotter than pancakes sorry i dont make the rules here

yes they absolutely are ahahah

What is the value of 9+21(13+5)? A.287 B.395 C.387 D.540​

Answers

Answer:

The answer would be C

Step-by-step explanation:

This is because you would use the distributive property, so you would distribute the 21 to the 13 and the 5. Then you would multiply those two, and then add them, and add the separate 9 to them. Hope this helps :)

Answer:

C.

Step-by-step explanation:

if the other answer gets deleted or they delete it or something im here .<.

11. For any integer x, x x will always produce an even value. true or false ​

Answers

So, you're multiplying two consecutive numbers. One of them must be even, and if a factor of a product is even, the result will be even.

What is 12 to the 3rd power in multiplication expression standard form

Answers

Answer: 12 x 12 x 12

12 to the 3rd power in multiplication expression standard form is 12 ×12 ×12

What are index forms?

Index forms are defined as mathematical forms that are used in the representation of numbers or variables that are too large or too small in more convenient forms.

Other names for these index forms are;

Scientific notationStandard forms

From the information given, we have that;

12 to the 3rd power in multiplication expression standard form

This is represented as;

12³

Expand the expression , we get;

12 ×12 ×12

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Two samples were taken of fish caught on Small Lake and are shown in the table below. It is estimated that the Small Lake fish population is roughly 1,000 fish. What is the average number of brown trout in the lake? Small Lake Fish Sample 15 Sample 1 Rainbow Trout Brown Trout Largemouth Bass 11 Sample 2 Rainbow Trout Brown Trout Largemouth Bass 3 1 9 11 43 ООО 80 160 333.​

Answers

Answer:

b or 80

Step-by-step explanation:

80 is the average number of brown trout in the lake.

What is Mean?

The sum of all values divided by the total number of values determines the mean (also known as the arithmetic mean, which differs from the geometric mean) of a dataset. The term "average" is frequently used to describe this measure of central tendency.

given, Two samples were taken of fish caught on Small Lake and are shown in the table given.

Total fish were taken in both samples = 9 + 3+ 15 + 11 + 1 + 11

Total fish were taken in both samples = 50

Brown fish in both samples = 3 + 1

Brown fish in both samples = 4

Thus,

the average number of brown trout in the lake = 4/50 * 1000

Since there are 1000 fish in total in the lake

the average number of brown trout in the lake = 80

Therefore,  the average number of brown trout in the lake is 80.

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Complete question:

the length of a rectangle is 3 inches m ore that its width. if the perimeter is 42 inches, what are the dimensions of the rectangle

Answers

Answer:

width is 9 length is 12 :)

Step-by-step explanation:

I'm doing this stuff rn

what is the equation represented​

Answers

Answer:

y=-8x-6, y=-4x, y=-2x+3, x=6

Step-by-step explanation:

y=mx+b

use that formula to make you're equations but remember m represents slope and b what is going up by

I need help on this question

Answers

Answer:

x=32

Step-by-step explanation:

Answer:

x= 32

Step-by-step explanation:

Remember all triangles sum up to 180 degrees.

Equation= 98+50+x=180

Step 1- Add to simplify

148+x= 180

Step 2- Subtract 148 to both sides.

148+x= 180

-148       148

x= 32

HELP ME PLEASE !!!!!!!!!

Answers

Answer:

12 units right 6 units down

HELP PLEASE GIVING BRAINLIEST

Answers

Answer:

4 3/5

Step-by-step explanation:

E varies directly with G. When G is 6, E is 10. Find the value of G when E is 18.

Answers

Answer:

  10.8

Step-by-step explanation:

E has increased by a factor of 18/10 = 1.8, so G will increase by that factor. The corresponding value of G is ...

  6 × 1.8 = 10.8 = G

__

If you like, you can write an equation relating G to E:

  E = kG

  10 = k(6)

  k = 10/6 = 5/3

Now for E = 18, we have ...

  18 = (5/3)G

  18(3/5) = G = 10.8

Jin has 34 feet of garden fence. He wants the shape of his garden to be a rectangle 5 feet wide.
Which should be the length of Jin's garden?
O A 42 feet
OB 24 feet
O c. 12 feet
D. 6 feet

Answers

C) 12 feet
Form equation 34=2x+10 (2 unknown lengths which are x and two 5 feet widths. They add up to his 34 feet of fence total).
Subtract 10 from both sides to whet 24=2x.
Divide both sides by 2 to isolate x and get the length is 12 feet.

Please help quick!!!!​

Answers

Answer:

they all fit correctly

the sum of 3 consecutive integers is -69. Find the largest

Answers

x = the first integer

x + 1 = the second integer

x + 2 = the third integer.

Let's set each of our variables equal to -69

x + x + 1 + x + 2 = -69

Combine like terms

3x + 3 = -69

Subtract 3 from both sides.

3x = -72

Divide both sides by 3

x = -24

The first integer = x = -24

The second integer = x + 1 = -24 + 1 = -23

The third Integer = x + 2 = -24 + 2 = -22

How many cups are in 1 liter? Which conversions show a path to the solution? Check all that apply. cups Right-arrow liters Right-arrow quarts liters Right-arrow quarts Right-arrow cups cups Right-arrow gallons Right-arrow liters liters Right-arrow gallons Right-arrow cups

Answers

Answer:

I cant answer everything but I know that there are 8 cups in a liter

Step-by-step explanation:

Answer:

B,D

Step-by-step explanation:

i can’t figure this out

Answers

Answer:

B: 2 1/3 > 2 1/6

is the correct answer

A,C, and D are false answers and are incorrect

Answer:

2 1/3 > 2 1/6

Step-by-step explanation:

5/6 < - 1/3

2 < -2 1/2

negative cannot be bigger than positive

1 1/4 > 1 1/3 if you divide them you would get 1.25 > 1.333333, so 1 1/4 not bigger than 1 1/4

Can someone please explain to me how I solve a problem like this? I'm learning about proving parallel Lines right now. Thank you!

Answers

Answer:

x = 12

I apologize if it is wrong.

grade 7. i actually already learnt this but this whole quarantine thing made me forget lolz. what are factors?
example : is 3 a factor of 372?
please answer and explain <3​

Answers

Answer:

A number in a multiplication equation that makes up the total. For example,

2 x 3= 6.

2 and 3 are the factors.

Answer:

A factor is basically a number that derives from another without leaving a remainder. It sounds somewhat confusing when put into words but I'll give you some examples.

Step-by-step explanation:

in the problem you stated the answer would be yes. 3 is a factor of 372 because you can multiply 3 times another number (which in this case is 124) to get 372.

In addition, a number can have several factors. For example, these are all the factors for the number 10: 1, 2, 5, 10

notice how all these numbers multiplied by another of these same numbers on the list give you 10.

hope this helped :)

1. The math team held several fund-raising activities during the school year. Some
activities made money and some lost money. The profit or loss for each activity is
shown in this table.
Activity Profit / Loss
Game Booth at Dance S150 profit
Stretchable Book Cover Sales S130 profit
Candy Sales
$145 loss
Car Wash
5175 profit
Pencil Sales
$115 loss
Spirit Button Sales $110 loss
A Place these profit/loss numbers in order from LEAST to GREATEST.

Answers

Have fun with me taking points

I like to give easy points so what is 35+50+20 super easy

Answers

105 cuz it is........
Answer: 105

35
50
20
——
105

FInd the slope y = -2

Answers

Answer:

The slope is ZERO. It has no slope

Step-by-step explanation:

how to subtract 5/8 from 1 7/8

Answers

Answer:

7/8 - 5/8 = 2/8. Therefore the answer is 1 2/8.

Step-by-step explanation:

Answer: 1 2/8

Step-by-step explanation:

you take away 5 from seven so it becomes 2 then you put the 8 under and you still keep the one there

helpppp !
expand and simplify (x+y) (x+y)

Answers

Answer:

Step-by-step explanation:

(x+y) (x+y)

=x^2+xy+yx+y^2

=x^2+2xy+y^2

Hope it helps

pls mark as Brainliest

(x+y)(x+y)
= x*x +xy +yx + y*y
= x^2 + 2xy + y^2
Hope can help you

This is the second questsions!!! Please helpers!!

Answers

A) < is the answer

B) < is the answer

C) = is the answer

D) > is the answer

Brainliest?

Alex's wardrobe is 2 yards tall. How tall is the wardrobe in feet?
feet

Answers

The answer is six feet

HELP ME. ASAP HELP ME PLS. PLSSSS
I will give brainlist for the right answer.
Three cars are for sale car a £14240 or car b £15870 or car c £11690 The price of car is rounded to the nearest £100. Which price changes by the greatest amount

Answers

Answer:

1st car is the answer to you question and even explanation is given.

Answer:

when rounded off to nearest 1000

14200, 15900 11700

first car by 40 second car by 30 and third car by 10

so first car

Step-by-step explanation:


Solve the equation 3(m + 5) = 3 + 3(2m + 2) for m.

Answers

Answer:

m=2

Step-by-step explanation:

Answer:

[tex]m=2[/tex]

Step-by-step explanation:

[tex]3\left(m+5\right)=3+3\left(2m+2\right)[/tex]

Expand:

[tex]3m+3\times5=3+3\times2m+3\times2[/tex]

[tex]3m+15=3+6m+6[/tex]

[tex]3m+15=6m+9[/tex]

Subtract 15 from both sides:

[tex]3m+15-15=6m+9-15[/tex]

[tex]3m=6m-6[/tex]

Subtract 6m from both sides:

[tex]3m-6m=6m-6-6m[/tex]

[tex]-3m=-6[/tex]

Divide both sides by -3:

[tex]\frac{-3m}{-3}=\frac{-6}{-3}[/tex]

[tex]m=2[/tex]

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