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3 years ago

Solve the given portion 10/a= 15/24 x=?

Mathematics

1 answer:

kramer3 years ago

3 0

Answer:

$a = 16.$

Step-by-step explanation:

$\frac{10}{a} = \frac{15}{24}$

Then

$15 \times a = 24 \times 10$

$a = 240 \div 15$

Therefore

$a = 16.$

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Use the net as an aid to compute the surface area (rounded to the nearest integer) of the triangular pyramid with an equilateral

aleksandrvk [35]

Answer:

Correct answer is $C)\ 254\ m^{2}$

Step-by-step explanation:

As per the given diagram, we know the following details:

Height of the triangular pyramid is 14m.

Side of base = 10m

Height of Triangular base = 8.7m

Formula for surface area of triangular pyramid:

$\text{Area = Area of Triangular base + 3 }\times\text{Area of side triangle}$

(Triangular base is shown in the dotted lines in the question figure.

The other 3 triangles are the side triangles.)

We know that,

$\text{Area of a triangle = }\dfrac{1}{2} \times \text{Base} \times \text{Height}$

$\Rightarrow \text{Required Surface Area = } \dfrac{1}{2} \times 8.7 \times 10 + 3 \times \dfrac{1}{2} \times 14 \times 10\\\Rightarrow \dfrac{1}{2}\times (87 + 3 \times 140)\\\Rightarrow \dfrac{1}{2}\times (87 + 420)\\\Rightarrow \dfrac{1}{2} \times 507\\$\approx$ 254 m^{2}$

Hence correct answer is $C)\ 254\ m^{2}$ .

3 0

3 years ago

1. Which of the following is the sale price for an item with an original price of $8.95 after it has been discounted 40%?

dsp73

Hey there!

1, 8.95*.4= 3.58 was take off. 8.95-3.58= 5.37
$5.37

2.A change from 85 to 72 represents a negative change (decrease) of -15.294117647058824%

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3 years ago

The graph of which function has a y-intercept of 3? On a coordinate plane, a parabola opens up. It goes through (negative 3, 3),

mixer [17]

Answer:

It is A

Step-by-step explanation:

The guy below is wrong because I got a 100 on the quiz on Edge.

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The video game store charges 30$ for 4 used games. Which equation could the store use to find how many dollars d they should cha

Lilit [14]

Answer:30 divided by 4 equals 7.5

Step-by-step explanation:

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3 years ago

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musickatia [10]

The average number of jumps is 239, just add all the numbers and divide by the amount of numbers you have. Easy! Hope this helped!

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3 years ago