MATHEMATICS MIDDLE SCHOOL

Mark is gluing a ribbon around the sides of a picture frame. The frame is 11 inches long and 7 inches wide. How much ribbon does mark need?

Answers

Answer 1

Answer:

Mark needs 36 inches of ribbon to go around the sides of the picture frame.

What is a rectangle?

A rectangle is a 2-D shape with length and width.

The length and width are different.

If the length and width are not different then it is a square.

The area of a rectangle is given as:

Area = Length x width

We have,

The length of ribbon required to go around the picture frame is equal to the perimeter of the frame.

The perimeter of a rectangle is given by the formula:

= 2 (length + width)

= 2 (11 + 7)

= 2(18)

= 36 inches

Therefore,

Mark needs 36 inches of ribbon to go around the sides of the picture frame.

Learn more about rectangles here:

brainly.com/question/15019502

#SPJ2

Answer 2

Answer: You need to know the perimeter or this because he want to wrap the ribbon around the frame.11(2)+7(2)=22+1436Mark needs 36 inches of ribbon.

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On a given morning the temperature was 71°F. The temperature dropped 5°F and then rose 8°F. How much does the temperature need to rise or fall to return to the initial temperature of 71°F? A) Fall 8°F
B) Fall 3°F
C) Rise 8°F
D) Rise 5°F

Answers

The temp starts at 71 degrees then drops 5 degrees

71 - 5 = 66 degrees

then it rises 8 degrees

66 + 8 = 74 degrees

How much does the temp have to rise or fall to get back to 71...

74 - 71 = 3 degrees

It has to fall 3 degrees F. Answer B.

B. Fall 3°F is your answer.

Y=-2x+8; D:-4,-2,0,2,4

Answers

Answer:

Step by step explanation:

Jana is taking pledges for a bike-a-thon fundraiser. Ivan pledged $4.25, plus $1.25 for eachmile that Jana bikes. Vicky pledged $5.75, plus $0.75 for each mile that Jana bikes.
Part A
Write expressions for the number of dollars Ivan pledged and the number of dollars Vicky
pledged. Use m for the number of miles that Jana bikes.
Part B
Add the two expressions from Part A to find the combined amount that Ivan and Vicky
pledged in terms of m.
Part C
Find an expression equivalent to the one from Part B by factoring out the greatest common
factor from the two terms.

Answers

Jana is taking pledges for a bike-a-thon fundraiser.

Part A

Ivan: $4.25 + $1.25m

Vicky: $5.75 + $0.75m

where m is the number of miles jana bikes

Part B

Total = ($4.25 + $1.25m) + ($5.75 + $0.75m)

Total = $4.25 + $5.75 + $1.25m + $0.75m

Total = $10.00 + $2m

Part C

Total = $2 (5+m)

Part A
Ivan- 4.25+1.25x
x=number of miles rode
Vicky- 5.75+0.75x
x=number of miles rode

A 20-foot ladder is leaning on abuilding. The bottom of the
ladder is on the ground at a
distance of 12 feet from the
base of the building. The base of
the building and the ground
form a right angle as shown. Find
the distance between the ground
and the top of the ladder, x, in
feet.

Answers

Answer:

From the bottom of the building to the top of the ladder, it is 16 feet.

Step-by-step explanation:

Depending on what grade you are in, you might know the Pythagorean theorem, whose equation is a^2+b^2=C^2 The measurement of the leaning ladder (20ft) is the hypotenuse of the right triangle, the distance from the bottom of the ladder to the building is the leg length (12ft). With this information we know the "c" of the equation, and the "b" or "a" of the equation. If we plug in the number for the letter the equation will look like this:

12^2+b=20^2. 20 to the second power is 400, and 12 to the second power is 144. You can use the subtraction property of equality and get b^2=256. Use can use a calculator for this part. The square root of 256 is 16, which leaves the equation with b=16

How do you simplify 3:9:15:24

Answers

All of those numbers have a common factor, which is 3. So you divide all of their values by 3.

3:9:15:24
=1:3:5:8

Because the values cannot be divided anymore, this ratio is in it's simplest form.

The height of a man is 1.7 meters.what is his height in centimeters