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3 years ago

Please I really need help!!! As fast as possible!!!

Mathematics

1 answer:

natima [27]3 years ago

7 0

9514 1404 393

Answer:

x = 15

Step-by-step explanation:

Corresponding sides are proportional, so the ratios of bottom to left side are the same. The left side of the large triangle is 6+4=10.

x/10 = 9/6

x = 10(9/6) . . . . multiply by 10

x = 15

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How can you use 2, 3, 5 and 8 to get 104?

Tamiku [17]

Salma showed me how to do it.

Here are two ways:

8 times (5·3 - 2) = 8 times (15 - 2) = 8 times 13 = 104 .

8 times (5·2 + 3) = 8 times (10 + 3) = 8 times 13 = 104.

Thank you, Salma.

7 0

3 years ago

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7. A sphere and a circular cylinder have the same radius, r, and the height of the cylinder is 2r. a. What is the ratio of the v

Nastasia [14]

Answer: (a) 2 : 3

(b) 4 :1

Step-by-step explanation:

$\\$ The Volume of a sphere is given as

$\frac{4}{3}$ $\pi$ $r^{3}$ and the volume of a cylinder is given as $\pi$ $r^{2}$ h

$\\$ The ration of their volume is the same as Volume of Sphere : Volume of Cylinder , which gives

$\\$ $\frac{4}{3}$ $\pi$ $r^{3}$ : $\pi$ $r^{2}$ h

$\\$ recall that they have the same radius and the height of the cylinder is 2r , taking this into consideration, we have

$\\$ $\frac{4}{3}$ $\pi$ $r^{3}$ : $\pi$ $r^{2}$ (2r)

$\\$ which gives 4 : 6 = 2 :3

$\\$ (b) The area of a sphere is 4 $\pi$ $r^{2}$ and the surface area of the circular cylinder is $\pi$ $r^{2}$

$\\$ The ratio then gives

$\\$ 4 $\pi$ $r^{2}$ : $\pi$ $r^{2}$ ,which gives

$\\$ 4 : 1

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3 years ago

What is the perimeter of the figure?

Nutka1998 [239]

Answer:

B. 49 + 5π

Step-by-step explanation:

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4 years ago

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Step-by-step explanation:

8 0

3 years ago

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Arnold has $24 to spend at the movies. His ticket is $12. He bought popcorn, candy bar, and soda. Popcorn is double the prize of

Anastasy [175]

Given:

Arnold has $24 to spend at the movies.

Ticket = $12

Popcorn is double the price of the soda.

The soda and candy bar are same price.

To find:

The price for the soda.

Solution:

Let x be the price of soda.

According to the question,

Price of candy = Price of soda = x

Price of popcorn = 2(price of soda) = 2x

Total amount = Ticket + Popcorn + Soda + Candy

$24=12+2x+x+x$

$24=12+4x$

$24-12=4x$

$12=4x$

Divide both sides by 4.

$\dfrac{12}{4}=x$

$3=x$

Therefore, the price of soda is $3.

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3 years ago