Mathematics High School

-x + y = 4
x + 3y =4​

Answers

Answer 1
The answer is -2,2 for this problem

Related Questions

Lin's father is paying for a $20 meal. He has a 15%-off coupon for the meal. After the discount, a 7% sales tax is applied. What does Lin's father pay for the meal? Explain or show your reasoning.

Answers

Answer:

$18.19

Step-by-step explanation:

20 decrease 15% =

20 × (1 - 15%) = 20 × (1 - 0.15) = 17

17 increase 7% =

17 × (1 + 7%) = 17 × (1 + 0.07) = 18.19

A dog weighs 60 N on planet Earth. On the moon, he would weigh about
176 (one-sixth) of what he does on Earth. How much does the dog weigh on
the moon?

Answers

Answer:

16.09N

Step-by-step explanation:

Answer:

[tex]\boxed{\purple{\textsf{The weight of the dog on moon is \textbf{10 Newtons. }}}}[/tex]

Step-by-step explanation:

Given that the weight of the dog on the earth is 60N . We need to find the weight of dog on the moon. So we know that the weight of an object is one sixth the weight of an object on the moon. In other words the acceleration due to gravity is one sixth on the moon that of earth. We can use a formula as ,

[tex]\qquad\boxed{\boxed{\sf Weight_{(On \ moon )}= \dfrac{1}{6}\times Weight_{(On \ earth )}}}[/tex]

On substituting the respective values :-

[tex]\sf\implies Weight_{(On \ moon )} = \dfrac{1}{6}\times Weight_{(On \ earth )} \\\\\sf\implies Weight_{(On \ moon )} =\dfrac{1}{6}\times 60 N \\\\\sf\implies\boxed{\pink{\frak{ Weight_{(On \ moon )}= 10 \ Newtons }}}[/tex]

pls help me with my homework​

Answers

9^-2 = 1/81 or 0.0123
When there is a negative in front of the exponent it makes a fraction. It is usually just 1/the number it equals if it were positive.

Answer:

[tex] \frac{1}{81} [/tex]

Step-by-step explanation:

express that with a positive exponent using this:

[tex] {a}^{ - n} \frac{1}{ {a}^{n} } [/tex]

so ..

[tex] {9}^{ - 2} = \frac{1}{ {9}^{2} } [/tex]

now you have to evaluate the exponent/ power

so..

[tex] \frac{1}{ {9}^{2} } = \frac{1}{81} [/tex]

why 81 ?

because the exponent of 9 is 2 so you have to multiple 9 by itself so

9x9=81

so the answer is

[tex] \frac{1}{ {81}^{} } [/tex]

sorry for the bad english hehe

Write 1.74 x 10^-4 as an ordinary number

Answers

Answer:

0.000174 is your answer.

I need help what is the area

Answers

Answer:

A. 42 cm²

Step-by-step explanation:

6 × 7 = 42 cm²

Someone plz help me I will give brainliest plz show your work.

Answers

Answer:

$3,500

Step-by-step explanation:

6,000 divided by 12

500 x 7

One corner of a rectangle has the ordered pair of (8, 2). The rectangle is dilated by a scale factor of 4. What is the new ordered pair?

Answers

the new ordered pair would be 11,6

Please help asap!!! With 2 and 3 please

Answers

Answer:

2) 224πcm²

3)156 cm²

What is the additive inverse of (7x – 20)?

Answers

Answer:

cannot factor.

Step-by-step explanation:

Can please help me with these questions i will give you a Brainliest

Answers

Answer:

1. x=-5

2. x=24

3. -1x+19

4. 14w²-4w

5. 5x-15

6. 11a²b-12ab²

7. 6x+4

8.  x=15

9. x=-12

10. x=3

11. x=20

Step-by-step explanation:

1.

15x-24-4x=-79      We have to add the like terms

     +24        +24

15x-4x=-55             Subtract 15x-4x

11x=-55             Now divide

/11      /11

x=-5

2.

3(2x-5)-4x=33           Use distributive property

6x-15-4x=33            Add like terms

    +15      +15

6x-4x=48            Subtract 6x-4x

2x=48            Divide

/2    /2

x=24

3.  

6x+4+15-7x             Combine 6x and -7x

-1x+4+15         Now combine 4 and 14

-1x+19

4.

6w²+11w+8w²-15w            Combine 11w and -15w

6w²+8w²-4w                  Now combine 8w² and 6w²

14w²-4w

5.

12x-5-7x-11            Combine -5 and -11

12x-7x-15        Now subtract 12x-7x

5x-15

6.

11a²b-12ab²

Nothing else can be done with this equation

7.

2(3x+2)

6x+4

8.

x/5=3

5×3=15

15=x

9.

2/3x=-8

-4×2=-8

-4×3=-12

x=-12

10.

9x-11=-38

    +11  +11

9x=-27

/9     /9

x=3

11.

-x/5+3=7

       -3  -3

-x/5=4

-x=-20

x=20

A certain population has 1,000 people in it. Which of the following numbers would be an appropriate number for a
random sample?
O 10
200
O 1,000
0900

Answers

Answer:

10

Step-by-step explanation:

solve the inequality x^2-4x-7<0

Answers

Answer:

Inequality Form:

2 − √ 11 < x < 2 + √ 11

Interval Notation:

( 2 − √ 11 , 2 + √ 11 )

Step-by-step explanation:

Solve the inequality for  x  by finding  a ,  b , and  c  of the quadratic then applying the quadratic formula.

What is an equivalent fractions

Answers

Answer:

fractions that are the same

A lottery sells a total of 60,000 lottery tickets. You buy 100 tickets and of these 90 are blanks (no prize). Approximately how many blanks were there in total in this lottery?

Answers

Answer:

≈ 54000 blank tickets

Step-by-step explanation:

90 out of 100 = 9/10

9/10 × 60000 = 54000

1/3 of a cake and was eaten 1/4 of a cake

Answers

Answer:

Look on brainless

Step-by-step explanation:

The area of a circle is represented by the equation A = ar2 , where r is the
radius. The area is 64 r m². What is the length of the diameter, in meters?
A. 8 m
B. 12 m
C. 16 m
D. 32 m

PLEASE I NEED HELP

Answers

Bajebrudurbrudhrbrudh

Solution of
y=2x^3-4x^2+3x-1

Answers

I asked Siri here’s the answer

make m the subject of the formula

Answers

G = √m-5 /2

g² = m-5 /2

2 × g² = m - 5

2g² = m - 5

2g² + 5 = m

So, m = 2g² + 5

Answer:

m = 2G²+5

Step-by-step explanation:

G²= m-5/2

2g² = m-5

2g² +5 = m

m = 2G²+5

Which ordered pair is a solution of the equation y = 10x?

A. (−6, −60)
B. (8, 90)
C. (8, 70)
D. (−10, −80)

Answers

A is a solution.
Basically, you have to plug in your coordinate to the equation. Plug in -60 for y and -6 for x. Now it should look like:
-60 = 10(-6)
Multiply 10 by -6 to get:
-60 = -60
That is a true statement because -60 equals -60. So, A is a solution to the equation. Hope this helped!

what is the hieght of the prism
14cm
18cm
24cm
30cm

Answers

What prism??? I see no prism

Answer:

Post another question with an image please thank you we'll go on your page so don't worry.

so how much homework do you guys have on average daily? ive just been wondering if my school has started to give out more homework than usual lately.

Answers

i usually get around 3-5 hours per night, sometimes more.

Answer:

At my school I don't get too much homework. My county doesn't have classes  on Wednesday so usually my teachers give work on Monday that is due on Wednesday and then work on Thursday due in Sunday. Also I only get homework for 3 classes Math, S.S and ELA, not science.

btw - im in 8th grade

Step-by-step explanation:

Moms car is 180 inches long. Dads truck is 75% longer than moms car. How long is the truck?

Answers

The answer is 315 inches

Bc 180 times .75= 135

135 + 180 =315

I will brainliest to whoever can solve this :)

Answers

Answer:

All I can tell you from what you've given me is that the slope is positive, and the y-intercept is 1.

Step-by-step explanation:

Hope It helps!

the slope is positive 1/3 with a y-intercept of 1. The equation is y=1/3x+1

after the 15% sales tax the jeans were 16.10. how much was the jeans before the sales price?​

Answers

Answer:

$13.69

Step-by-step explanation:

16.10 decrease 15% =

16.10 × (1 - 15%) = 16.10 × (1 - 0.15) = 13.685

What is the slope of a line that passes through the points (-2, 4) and (-6, 12)?

Answers

Answer: Slope = -2

Step-by-step explanation:

[tex]m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

[tex]m = \frac{12-4}{-6-(-2)}[/tex]

[tex]m = \frac{8}{-4}[/tex]

[tex]m = -2[/tex]

Answer:

it would be -2

Step-by-step explanation:

13.2/4 and show your work​

Answers

13.2/ 4 is 3.3 hope this helps

A ladder leans against the side of the a house. The ladder is 17 feet long and forms an angle of elevation of 72 degree when leaned against the house. What is the height where the ladder meets the side of the house? Round your answer to the nearest tenth.

please explain how you got the answer if you can! thanks :)

Answers

Answer:

7 feet is your answer because by time the ladder reach the side of the house from 72 degree angle if you measure it right and cross path with the correct tools you will see that it reaches 7 ft

can someone help me or is no one else on this app helpful anymore

Answers

Answer:

Your answer is

$5 after 3.75 miles

Hope that this is helpful. Tap the crown button, Like & Follow me

someone please help !!

Answers

Answer:

50

Step-by-step explanation:

138-88=50

A restaurant buys a freezer that is 6 feet long, 2 feet wide, and 2.5 feet tall. What is the volume of the freezer?
© 21 cubic feet
10.5 cubic feet
30 cubic feet
15 cubic feet

Answers

Answer:

30 cubic feet

Step-by-step explanation:

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