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3 years ago

The width of a rectangle measures (9h 1) centimeters, and its length measures

Mathematics

1 answer:

Yanka [14]3 years ago

5 0

Answer:

(22h - 8) centimeters

Step-by-step explanation:

Perimeter of a rectangle = 2(length + width)

= 2{(9h - 1) + (2h - 4)}

= 2(9h - 1 + 2h - 4)

= 2(11h - 4)

= (22h - 8) centimeters

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Stacy wants to make 100 name tags with ribbons attached to them. each name tag requries 5 centimeter of ribbon. she has 3.25 met

nydimaria [60]

So convert 3.25 meters to centimeters, and you get 325 centimeters.
Now divide 325 by 5 (for each ribbon), and you get 65 name tags.
Therefore, she needs 35 MORE name tags to get to 100.
Multiply 35 by 5 and you get 175 MORE centimeters of ribbon.

Hope this helped!

4 0

4 years ago

Explain how to solve this, step by step?

andrey2020 [161]

Answer:

The cost of chair is $\$260$

The cost of a lamp is $\$65$

The cost of a table is $\$237$

Step-by-step explanation:

Let

x----> the cost of chair

y----> the cost of lamp

z----> the cost of table

we know that

$x+y+z=562$ ----> equation A

$x=4y$ -----> $y=x/4$ -----> equation B

$z=x-23$ ------> equation C

substitute equation C and equation B in equation A and solve for x

$x+(x/4)+(x-23)=562$

$(9/4)x=562+23$

$(9/4)x=585$

$x=585*4/9=\$260$

Find the value of y

$y=260/4=\$65$

Find the value of z

$z=260-23=\$237$

therefore

The cost of chair is $\$260$

The cost of a lamp is $\$65$

The cost of a table is $\$237$

7 0

3 years ago

Find the area and perimeter of the compound figure below. (6 points)

fenix001 [56]

Answer:

area: 27.8 square units
perimeter: 21.2 units

Step-by-step explanation:

The area of a compound figure is the sum of the areas of its parts. The perimeter is the sum of the lengths of all of the edges.

This compound figure is conveniently divided into a semicircle of radius 2.5 and a trapezoid with bases 5 and 7, and height 3.

Semicircle

The area of the semicircle is half the area of a circle with the same radius. It will be ...

A = 1/2πr²

A = 1/2π(2.5²) = 3.125π . . . . square units

Trapezoid

The area of the trapezoid is given by the formula ...

A = 1/2(b1 +b2)h

A = (1/2)(5 +7)(3) = 18 . . . . square units

Then the total area of the figure is ...

3.125π +18 ≈ 27.8 . . . . square units

Perimeter

The perimeter will be the sum of the lengths of the straight line segments and the length of the semicircular arc.

Arc

The arc length is half the circumference of the circle, so is ...

arc = 1/2(2πr) = πr = 2.5π . . . . units

Diagonal segments

The figure is bounded by two congruent line segments that are each the hypotenuse of a triangle 1 unit wide and 3 units high. The Pythagorean theorem tells us that length is ...

diagonal length = √(1² +3²) = √10 . . . . units

The two diagonal sides have a total length of 2√10 units.

Horizontal segments

The figure is bounded by two congruent horizontal segments of length 1 unit each, and one horizontal segment of length 5 units. Their total length is ...

horizontal length = 1 + 1 + 5 = 7 . . . . units

The total perimeter is ...

perimeter = horizontal length + diagonal length + arc length

7 +2√10 +2.5π ≈ 21.2 . . . . units

7 0

3 years ago

14) Find the value of

lawyer [7]

Answer is 3

For a more deatiled explanation, please refer to https://photomath.net/s/WnXPjE for explanations at every step!

This question may look hard but is actually very simple! Look at my first step and you should be set to go!

6 0

3 years ago

Are the lengths changing in a linear fashion in the listing above? Perry's hot tub

Anit [1.1K]

Answer:

there isnt anything there but sure yes they are

Step-by-step explanation:

4 0

3 years ago