-4x + 7y = 20 y= 3x + 15

Answers

Answer 1

Answer:

What’s the question

Step-by-step explanation:


Related Questions

If 50% of a number is 100 and 20% of the same number is 40, find 70% of that number.

Answers

I think the answer is 140

Steps:
The number is 200 as 50% of this would be 100 so in order to work out 70% you will do:
10%=20
20 x 7=(70%)140

y=2/3x+2. I need help

Answers

2 is the y intercept and 2/3 is the slope.. if you need help graphing it go up 2 and over 3 continuously until you get a line.. hope this helps

Answer:

Using the slope-intercept form, the slope is 23, but you will have to combine 2/3 and x. y= 2x/3+2

Step-by-step explanation:

if this helped subscribe to amiredagoat Yt

What is the area of sector with a central angle of 160 and a diameter of 5.8 m? Round the answer to the nearest tenth.

A) 8.1 m^2

B) 4.0 m^2

C) 46.0 m^2

D) 11.7 m^2

Answers

Answer:

[tex]A=11.7\ m^2[/tex]

Step-by-step explanation:

Given that,

Central angle, [tex]\theta=160^{\circ}[/tex]

Diameter,d = 5.8 m

Radius, r = 2.9 m

We need to find the area of sector. The formula for the area of sector is given by :

[tex]A=\dfrac{\theta}{360}\times \pi r^2\\\\=\dfrac{160}{360}\times 3.14\times 2.9^2\\\\=11.7\ m^2[/tex]

So, the area of a sector is equal to [tex]11.7\ m^2[/tex].

Mai’s mother was 28 when Mai was born. Mai is now 12 years old.
How old will they be then?

Answers

Answer:

Mai is 12 and Mai's mother would be 40.

40 hope this helps..

A rectangular pitcher is 3 inches wide, 9 inches long and 16 inches tall. If water is filled up to 5 inches, how much more water can be put in ther pitcher

Answers

Answer:

427

Step-by-step explanation:

Find volume

Subtract 5 inches

20 POINTS!!!!!! SOLVE FOR X​

Answers

Answer:

All you have to do is equal the equations to each other to find x for each problem!

Step-by-step explanation:

Hope this helps bestieee!

What is the volume of the cylinder? Use 3.14 for T.

Answers

Answer:

251.2

Step-by-step explanation:

V=πr²h

3.14×4²×5

Sarah's Surfboards charges a fee of $60 to rent a
surfboard and then $10.50 each hour
Sally's Surfboards doesn't charge a fee but they
cost $15.50 per hour
At how many hours will the cost be the same to rent
a surfboard for each shop?
A) 6 hours
B) 9 hours
C) 12 hours
D) 15 hours

Answers

Answer:C 12hours

Step-by-step explanation:

can you help me with this, please?​

Answers

Answer:

its D i do belive

Step-by-step explanation:

Answer:

28in, 195in, 197in

Step-by-step explanation:

There's no "supereasy" way to solve it, except by computation or approximation.

e.g. 2 3 6 couldn't work, because 2+3 < 6 so it's not even a triangle

125^2 cannot equal 122^2 + 30^2, because 125^2 is odd and 122^2 and 30^2 are even

23^2 + 18^2 = 529 + 324 < 900 < 31^2

So it has to be the last one, and after verification we find it checks out and 28^2 + 195^2 = 197^2

Jennifer's grandma bought her a $50 savings bond when she was born. When Jennifer is 30 years old, the bond will have earned 110% in interest. How much will the bond be worth when Jennifer is 30 years old?​

Answers

Answer:

105$

Step-by-step explanation:

We are told that she starts with 50$

We are also that after 30 years she earns 110% on interest

Given this information we need to find the value of the bond after the 30 years

To do so we take 110% of the initial value (50$) and add that to the initial value

So the answer = 110%(50) + 50

110%*50=55

55+50=105

So in 30 years the bond will be worth 105$

Jessica is buying several bunches of bananas to make desserts for a fundraiser. She can buy 10 pounds of bananas for $14.90 or 8 pounds of bananas for $12.08.

Part A
How much does each pound of bananas cost in each case?
Drag the tile with the cost of each pound to the correct box.
Each tile may be used once or not at all. And part b plz help

Answers

Each pound of bananas costs $1.49 when buying 10 pounds, and $1.51 when buying 8 pounds.

What is Pound?

The standard unit of money in the United Kingdom, equivalent to 16 ounces (or 0.454 kilograms), is used in most English-speaking countries. For more information, see measure. also known as the pound sterling.

According to question:

Let the cost per pound of bananas be represented by x. Then we can set up the following system of equations:

[tex]10x &= 14.90 \\8x &= 12.08[/tex]

Solving for $x$ in each equation, we get:

x = 14.9/10 =  1.49

x = 12.08/8 = 1.51

Therefore, each pound of bananas costs $1.49 when buying 10 pounds, and $1.51 when buying 8 pounds.

To know more about pounds visit:

brainly.com/question/29181271

#SPJ1

What is the mean absolute deviation of team A’s scores? Show your calculation.
15,20,15 ,5,10,15,10,15,5,20.
The mean is 130.

Answers

Answer:

the mean is 13, i believe! good luck

Step-by-step explanation:

factor the expression using gcf 98-70​

Answers

Answer:

The Greatest Common Factor (GCF) for 70 and 98, notation CGF(70,98), is 14.

Step-by-step explanation:

Mark hits a tennis ball into the air. He uses the equation shown to approximate the
height, h, in feet, of the ball t seconds after he hits it.
h = -1612 +886 + 4
What does the 4 represent in Mark's equation?
A.
The ball was in the air for a total of 4 seconds.
B.
The ball landed 4 feet away from where Mark hit it.
C.
The ball was 4 feet above the ground when Mark hit it.
D.
The ball reached its maximum height 4 seconds after Mark hit it.

Answers

Answer:

C. The ball was 4 feet above the ground when Mark hit it.

Step-by-step explanation:

After he hit the tennis ball into the air, the ball was 4ft above the ground.

hope this helps and is right. p.s i really need brainliest :)

if my answer is wrong then I am incredibly sorry!

The midpoint of AB is M(-6, 1). If the coordinates of A are (-7, -3) what are the coordinates of B?​

Answers

Answer:

Step-by-step explanation:

Find the area of a triangle​

Answers

Answer:

B.17.5cm²

Step-by-step explanation:

S=a+b+c/2=

5+8+7/2=10

S=10

Area of the triangle=[tex]\sqrt{3(5-a)(5-b)(5-c)}[/tex]

⇒[tex]\sqrt{10(10-5)(10-8)(10-7)}[/tex]

⇒[tex]\sqrt{10*5*2*3}[/tex]

⇒[tex]\sqrt{300}[/tex]

⇒17.5cm²

hope it helps...

have a great day!!

Apples cost $1.99 per pound. How much do 314 pounds of apples cost? $ How much do x pounds of apples cost? $ Clare spent $5.17 on apples. How many pounds of apples did Clare buy? pounds

Answers

Answer:

1. $624.86

2. 1.99x

3. 2.6 pounds

Step-by-step explanation:

1. Multiply 1.99 by 314 to get 624.86

2. With the equation 1.99x, you can substitute any variable into it and it will hold true.

3. Divide 5.17 by 1.99, the price, and you get 2.597 pounds, which rounds to 2.6

URGENT PLEASE HELPPPP!!! THANK YOU

Answers

Answer:

the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values.

Danielle can spend up to $10 making a birthday card for her friend. The paper costs $2. The markers cost $3. She also wants to buy a pack of stickers. Sort the costs of different sticker sets as in or out of budget.

Answers

Answer:

sos i need the points thx

Step-by-step explanation:

Answer:

so in a summary she is going to spend 5 dollars on paper and markers.

so she will have 5 dollars to budget on a pack of stickers.

Which statement is false? A. (−2)×5<(−20) B. (−2)×(−5)>(−25) C. 2×5>(−25) D. 2×(−5)<20

Answers

Answer:

(−2)×5<(−20)

Step-by-step explanation:

Evaluating the options given :

(−2)×5<(−20)

Open the bracket

- 10 < - 20 (false) ` This expression isn't true

(−2)×(−5)>(−25)

Open the bracket

10 > - 25 (true)

2×5>(−25)

Open the bracket

10 > - 25 (true)

2×(−5)<20

Open the bracket

- 10 < 20

HELP PLEASEEEE! whats the answer

Answers

Answer:

sum: 45

count: 15

mean: 3

Step-by-step explanation:

sum the number of times students ate fast food

count the amount of students that took the survey

the average amount of times students went out to eat

Answer:45

Step-by-step explanation: just add 1+1,2+2,3+3+3+3,+4,+5,+6+6+6

Lakota is planning on creating a gigantic flag to honor the greatness of the superintendent, Mr. Miller. The main part of the flag will be a gigantic picture of Mr. Miller’s face. The picture will be 12 meters by 16 meters. Around the outside will be a uniform border. The total area of the flag with the border will be a total of 285 square meters. Determine the width of the border that will be surrounding the picture of our great leader.
HURRY PLEASE

Answers

Answer:

285 square mwters

Step-by-step explanation:

length 16 meters X width 12 meters = 192

(Lx2x) (Wx2x)= 285

Jason spent half of his allowance going to the movies. He washed the family car and earned 8 dollars. What is his weekly allowance if he ended with 15 dollars? Giving the brainliest!!

Answers

Answer:

[tex]14[/tex] dollars.

Step-by-step explanation:

He washed the family car for $8, and he didn't spend it, correct?

[tex]15-8=7,[/tex] he spent half his allowance on the movies, correct?

[tex]7[/tex]×[tex]2=14.[/tex]

Find area of triangle 15 ft and 18 ft

Answers

Answer:

hbb

2

Step-by-step explanation:

Matteo is working two jobs, making $15 per hour at the movie theater and $18 per hour washing cars. Last week Matteo worked a total of 30 hours and earned a total of $480. Determine the amount of hours Matteo worked at the movie theater and the cash wash.

Answers

Answer:

movie theatre = 20 hours

car wash = 10 hours

Step-by-step explanation:

this would be solved using simultaneous equation

let a = hours worked in theatre

b = hours spent wash cars

15a + 18b = 480 eqn 1

a + b = 30      eqn 2

multiply eqn 2 by 15

15a + 15b = 450 eqn 3

subtract 1 from 3

3b = 30

b = 10 hours

substitute for b in eqn 2

a + 10 = 30

a = 20 hours

Can someone tell me if this is a adjacent ,vertical or linear

Answers

Answer:

linear

Step-by-step explanation:

Two angles are said to be linear if they are adjacent angles formed by two intersecting lines.

sum of angles on a straight line is 180° thus linear angle is also be 180° when the two angles a and b combine

Write 1/b9 in standard exponential form

Answers

Answer:

Step-by-step explanation:

exponent on 1 is 9

b) Here are the first four terms of another sequence.
6 11 16 21
Write an expression for the nth term of this sequence.

Answers

Answer:

        aₙ = 5n + 1

Step-by-step explanation:

11 - 6 = 5  ,   16 - 11 = 5  ,  21 - 16 = 5

So, it's atithmetic formula with common difference os 5

[tex]a_n = a_1+d(n-1)\\\\a_1=6\\d=5\\\\a_n=6+5(n-1)\\\\a_n=6 +5n-5\\\\a_n = 5n+1[/tex]

Which of the following constants can be added to x^2- 3x to form a perfect square trinomlal?
A. 2 1/4
B. 1 1/2
C. 4 1/2

Answers

Answer:

A 21/4

Step-by-step explanation:

When forming a perfect square trinomial you need to "complete the square".

All of the steps to completing the square when solving an equation:

1.  The leading coefficient must be 1.  

2.  Divide b by 2.

3.  Square (b/2)

4.  Add (b/2)^2 to both sides to keep the polynomial balanced.

5.  You can now write the perfect square trinomial and solve.

x^2 - 3x  

-3/2

(-3/2)^2 = 9/4 = 2 1/4

plss help if u do u get brainlist and help asap school bitterly almost done

Answers

Answer:

w+8²

p+30÷p²

4(9+y)

Step-by-step explanation:

Answer:

Answers are below.

Step-by-step explanation:

1. [tex]C^{3}[/tex]

2. A + C / 3

Second exercise:

1. w + (8 x 2)

2. 30 + p / p

3. 4 (9 + y)

hope this helps and is right :) p.s. i really need brainliest.

if my answers are wrong, then i am incredibly sorry!

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