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Ronch [10]
3 years ago
7

Your daughter found three pieces of ribbon in all different colors. Their lengths were 10 meters and 9 decimeters, 3 meters and

10 decimeters, and finally 10 meters and 4 decimeters. What was the length of the ribbons in all?
Mathematics
1 answer:
Pavel [41]3 years ago
3 0

Answer:

The length of the ribbons in all were 25.3 meters.

Step-by-step explanation:

Given:

Lengths of the three pieces of ribbon were 10 meters and 9 decimeters, 3 meters and 10 decimeters, and finally 10 meters and 4 decimeters.

Now, to find the length of the ribbons in all.

So, by adding the length of all three pieces we get the length of all the ribbons:

10 meters\ 9 decimeters

+3 meters\ 10 decimeters

+10 meters\ 4 decimeters.

=23 meters\ \ 23\ decimeters.

Now, converting the decimeters into meters = 23 meters + 2.3 meters = 25.3 meters.

(1 decimeter = 0.10 meter)

(23 decimeter = 2.3 meter.)

Therefore, the length of the ribbons in all were 25.3 metres.

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How many degrees are in an angle that turns through 1/3 of a circle?
Leona [35]

Hello!


We know that, in terms of radians and degrees, that an angle that turns through the entirety of a circle is 360 degrees. To find 1/3 of it, we just multiply by 1/3.


360(1/3)=120


Therefore, our answer is 120°.


I hope this helps!

6 0
3 years ago
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A company makes traffic signs one of those signs can be modeled by an equilateral triangle with the perimeter of 144 inches the
barxatty [35]

Answer:

The height of the larger traffic signs is 51.96 inches

Step-by-step explanation:

Given that initially, A company makes traffic signs of an equilateral triangle with the perimeter of 144 inches

Now, A company makes similar traffic signs of perimeter 1.25 of original

New perimeter will be 1.25x144=180 inches

Let triangle ABC be a larger triangle with 180inches of the perimeter.

It is given that the triangle is an equilateral triangle,

Therefore, Side AB=BC=AC

The perimeter of a triangle ABC is

AB+BC+AC=180

3AB=180

AB=60 inches

Figure show that triangle ABC and AD is the height of the triangle.

Since, the triangle ABC is an equilateral triangle,

AD is the perpendicular bisector of BC

so that,

BD=DC and Angle ADB=90

In right triangle ADB,

Angle D =90 and Angle B =60

Side BD=60/2=30 inches and AB=60 inches

Using Pythagoras theorem,

AD^{2} +BD^{2} =AC^{2}

(AD)^{2} +(30)^{2} =60^{2}

(AD)^{2} =60^{2}-(30)^{2}

AD=51.96 inches

Thus, The height of the larger traffic signs is 51.96 inches

4 0
3 years ago
You cut a 54-inch rope into four pieces. Twoof the pieces are the same length, a thirdpiece is twice as long as each of the twoe
antiseptic1488 [7]

Let's use the variable x to represent the length of the first and second pieces.

If the third piece has twice the length of the first and second, its length is 2x.

If the fourth piece has half the length of the first and second, its length is 0.5*x.

Adding all four pieces and equating to 54 inches, we have:

\begin{gathered} x+x+2x+0.5x=54 \\ 4.5x=54 \\ x=\frac{54}{4.5} \\ x=12 \end{gathered}

So the length of each piece is:

12 inches, 12 inches, 24 inches and 6 inches.

5 0
1 year ago
F(x) = x^3 + 3x^2<br><br> What would the graph look like?
lapo4ka [179]

Answer: the answer is in the attachment.

5 0
2 years ago
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20 people reported enjoying dancing and 11 of them were under 40. What percentage of people who enjoy dancing are under 40 years
Nikolay [14]

Step-by-step explanation:

11 ÷ 20 = 0.55

0.55 × 100 = 55

so 55%

8 0
2 years ago
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