The whittendale family purchases a new refrigerator on a no interest for one year plan. The cost is $1,385. There is no down payment If they make a monthly payment of x dollars until the last month, express their last month's payment algebraically.

Step-by-step explanation:

Amount of money spend in 1 day = x

So, amount of money spend in 7 days = (7x)

⇒ Amount of money spend in 1 week = (7x)

Amount of money saved in 1 week = y

∴ Income in 1 week = (7x + y)

So, income in 3 weeks = [3 x (7x + y)]

= (21x + 3y)

Answer:

total income after 3 weeks=7×3(x+y=21x+21y

income=saving + expenses

Answer:

-2

Step-by-step explanation:

as x goes up 1 y goes down 2

slope is change in y over change in x

-2/1=-2

Answer:

6:8:10

Step-by-step explanation:

Answer:

Yes, Shelby is correct.

Step-by-step explanation:

Basically, if you divide 63 by 9 you get 7, and if you divide 56 by 7 you get eight, so yah.

Answer:

[tex] \frac{ \sqrt{10} }{5} [/tex]

or .632

Step-by-step explanation:

You have the beginning right.

However, it is X squared, so once you have the answer from adding the two fractions together, you have to Square Root that answer.

Answer:

x= √(10/25)

Step-by-step explanation:

From what you've written, you're on the right track. The formula is a^2+b^2=c^2. our two sides are a and b (doesn't really matter here which is which). And the hypotenuse, the longest leg the diagonal, is always c. Based on your substitution, everything is correct, except x. x should be squared. so the equation you should have is (1/5)^2 + (3/5)^2=x^2. From there, solve for x by adding a^2 and b^2 to get 10/25 = x^2.

Take the square root of each side to find √(10/25)=√(x^2). This is simplified as x equals plus or minus √(10/25). it's plus or minus because you took the square root. It's important to write that when solving square root. However, since this is a triangle your answer will be positive(you can't have negative distance).

Answer:

A

Step-by-step explanation:

Subtract 1 on both sides of the inequality

we get x>4.

So graph A is correct.

Answer:

Reflect over x-axis. Then translate up 5 units.

Answer:

Step-by-step explanation:

f(-5) = (-5)^2 + 3(-5) - 21

= 25 - 15 - 21

= -11

Answer:

11

Step-by-step explanation:

) f(x) = 3x2 + 5 and y = 3x2 + 5 ... You read this problem like this: “given f of x equals 4x plus one, find f of 2. ... Given f(x)= 3x – 4, f(5) = 11.

Total surface area

=2 ×(area of triangle) +( area of rectangle 1) + (area of rectangle 2) + (area of rectangle 3)

2×(1/2 × 16 ×12) + (10×12)+(16×10)+(20×10)

=672 cm²

Answer:

12/7

Step-by-step explanation:

[tex]6=\frac{6}{1} \\\frac{6}{1}*\frac{2}{7}=\frac{12}{7}[/tex]

When you multiply fractions you multiply straight accross

Answer:

one thousand three hundred twenty inches

Answer:

the answer is ____

Step-by-step explanation:

first study more

then clean that computer

and then dont ask on here okau

Answer:

for the shirts made column its 1, 2, 3, 4, 5

for the cost of machine it's 2 and 150

and for total cost its 160, 180, and 200

Step-by-step explanation:

Answer:

-38

Step-by-step explanation:

Answer:

-17√2 /26 or -0.9247 to the nearest ten thousandth.

Step-by-step explanation:

The hypotenuse of the right triangle in which tan x = 2/3 is √(2^2 + 3^2)

= √13 so sin x = 2/√13 and cos x = 3/√13

sin2x = 2sinxcos

= 2* 2/√13 * 3/√13

= 12/13.

cos2x = cos^2x - sin^2x

= 9/13 - 4/13

= 5/13.

sin(2x + 5π/4)

= sin2x cos5π/4 + cos2x sin5π/4

= 12/13 * -1/√2 + 5/13 * -1/√2

= -12 / 13√2  - 5 / 13√2

= -17/13√2

= -17√2 /26.

Answer:

135 Kilograms

Step-by-step explanation:

Alex = 105

Brian = 115

Carlton = 135

135

Answer:

to find the value of c, isolate it.

28 + c = 36

c = 36 - 28

c = 8

now, to check:

28 + 8 = 36 ✓

Answer:

[tex]x = \frac{8}{3}, y = \frac{4}{3}[/tex]

Step-by-step explanation:

Solve for  y  in the first equation.

[tex]y=\frac{4}{3}[/tex], replace y with [tex]\frac{4}{3}[/tex]

Solve for in the first equation.

[tex]x = \frac{8}{3}, y = \frac{4}{3}[/tex]

good luck, hope this helps :)

Answer:

x= 2.375

y=4/3

Step-by-step explanation:

2x-y=4

1--3=3y

4=3y

y=4/3

2x-3/4=4

2x = 4.75

x= 2.375

Answer: 64.3

Step-by-step explanation:

It depends what decimal place you want and how accurate you want to be.

64.3

64.292

64.0

Are all acceptable

Answer:

x = -1

y = -2

Step-by-step explanation:

5x + 2y = -9      2y = -9 - 5x      y=(-9-5x)/2

3x + 4y = -11

3x+4[(-9-5x)/2] = -11

3x+( -36-20x)/2 = -11

3x-18-10x = -11

-7x = 7

x = -1

y = -2

Answer:

x = −1 and y = −2

Step-by-step explanation:

Utilicé sustitución.

Mire las imágenes para obtener una explicación paso a paso.

The sum of the measures of the exterior angles of a convex 21-gon is 360 degrees.

An exterior angle of a polygon is the angle between a side and its adjacent extended side.

Polygon is a plane figure with a finite number of straight line segments.

The sum of exterior angles of any polygon is 360 degrees.

The sum of the measures of the exterior angles of a convex 21-gon is 360 degrees.

Find out more on exterior angle at: https://brainly.com/question/2546141

#SPJ2

Answer:

22.5 feet.

Step-by-step explanation:

Volume = length * height + width, so:

3510 = 13 * 12 * width

So width = 3510 / (13*12)

= 22.5 feet.

Answer:

$2.77 per quart.

Step-by-step explanation:

There are four quarts in a gallon.

4 * 3 = 12

There are 12 quarts in 3 gallons.

[tex]\frac{price}{quart} =\frac{33.24}{12}=\frac{33.14/12}{12/12}=\frac{2.77}{1}=\boxed{2.77}[/tex]

The price per quart should be $2.77.

Hope this helps.  

Answer:

l.mao you could just send a picture, it's a bit hard to actually answer any of the questions if it's jam-packed like that

Answer:

420÷70=6

6×100= 600

Step-by-step explanation:

not sure if it's correct tho