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3 years ago

5. A triangle with a perimeter of

Mathematics

1 answer:

Eva8 [605]3 years ago

7 0

Step-by-step explanation:

a scale factor normally applies to lengths (one-dimensional sizes).

the perimeter of a triangle is calculated only by using lengths, so we can apply the scaling factor directly to the perimeter.

perimeter of the new triangle = 2 × perimeter of the old triangle = 2×8 = 16

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Karen is using a number line to represent the doors in the school hallway. She labels 0.25, 0.5, and 0.75 on the number line as

ElenaW [278]

Answer:

-.05 away from .75 and .2 away from .5

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3 years ago

The price of an item at the store can be defined by the variable x.

Feliz [49]

Answer:

A) 1.03x ; B) 1.08x ; C) 1.24x

Step-by-step explanation:

Given that :

Price of item = x

The Markup is obtained as :

Initial price + profit

As a percentage :

100% of x + percentage added

x + percentage added

No matter the percentage added to x above, the marked up price will be a certain percentage above 100% of x ; that is > 1x

Hence, the Marked up price will always be greater than 1 ;

From the option given, the possible mark up price will be :

A) 1.03x ; B) 1.08x ; C) 1.24x as they are greater than. 100% of x

3 0

3 years ago

Please, I need assistance, thank you!

dsp73

Answer:

a. $x=45$

b. The lines $AD$ and $BC$ would be parallel.

Step-by-step explanation:

a) By definition,the sum of the interior angles of a quadrilateral is 360 degrees.

Notice that the quadrilateral has an angle of 90 degrees. Then, you can write the following equation:

$x+2x+3x+90=360$

Solving for "x", you get:

$6x=360-90\\\\x=\frac{270}{6}\\\\x=45$

b) Knowing the value of "x", you know the measure of the angles of the quadrilateral:

$\angle A=2x=2(45)=90\°\\\\\angle B=90\°\\\\\angle C=x=45\°\\\\\angle D=3x=3(45)=135\°$

Since:

$\angle A$ ≅ $\angle B$

When $ABCD$ is drawn to scale, the lines $AD$ and $BC$ would be parallel.

6 0

3 years ago

Felipe's city took a telephone poll about a plan to build a new hotel downtown. 290 people took the poll. 60% of them were in fa

deff fn [24]

Answer:

174 people.

Step-by-step explanation:

take 290 people and multipy by the 60% who were in favor.

5 0

3 years ago

Read 2 more answers

The base of an isosceles triangle is three times as long as the side of a square. Each leg of the triangle is 1 inch more than t

padilas [110]

<h2>Answer:</h2>

9 inches

<h2>Step-by-step explanation:</h2>

Let x be the length of the side of the square.

If the base of the triangle is 3 times as long as the side of the square, it is 3 times x, or 3x.

The same can be said for the legs, which is 1 inch more than twice the side of the square, so 2x + 1.

The triangle can therefore be thought to look like the triangle below.

The perimeter is therefore (2x+1) + (2x+1) + 3x, which is 7x + 2.

The sum of perimeters of both the square and triangle is 46.

The perimeter of the square is 4x, so the sum of perimeters is 4x + (7x+2), or 11x + 2.

11x + 2 = 46, so 11x = 44.

x is therefore 4

The leg is 2x + 1, so the leg is 8 + 1, so the length of the leg is 9 inches.

7 0

2 years ago