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2 years ago

14

At a birthday party, the magician gave away 7 red balloons, 14 white balloons and 9 blue balloons. What is the percent of the ba

lloons given away were blue

2 answers:

Svetach [21]2 years ago

6 0

Answer:

30%

Step-by-step explanation:

7+14+9=30

10% of 30 is 3.

3 goes into nine 3 times so you times 10% by 3 to get 30%.

Alik [6]2 years ago

3 0

Answer:

30% is the percent of blue

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3 years ago

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From the markings on the diagram, we can tell E is the midpoint of BC and <u>D</u> is the midpoint of AC. We can apply the <u>triangle midsegment theorem</u>: ED = ½BA. Substituting in the expressions for the lengths and solving for x, we get x = <u>5</u>. Now, since BE = x, then BC = <u>10</u>.

<h3>What is triangle midpoint theorem?</h3>

Triangle midpoint theorem states that the line segment which joins the midpoints of two (2) sides of a triangle is parallel to the third side, and it's congruent to one-half of the third side.

By applying the triangle midpoint theorem, we can find the value of x:

ED = ½BA

x + 2 = ½(4x - 6)

2x + 4 = 4x - 6

4x - 2x = 6 + 4

2x = 10

x = 10/2

x = 5.

BC = x + x

BC = 5 + 5

BC = 10.

Read more on triangle midpoint theorem here: brainly.com/question/16047906

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1 year ago

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2 years ago