Can somebody please help me with these two questions? And show your work please? Solve for x.

Answers

Answer 1

Answer:

(1) x = 12, (2) $x=3(1 )/(2)$

Solution:

(1) If the two triangles are similar and the angles of two triangles are congruent then the corresponding sides are in proportion.

⇒ $(25)/(10)=(30)/(x)$

Do cross multiply.

⇒ $25 * x=30 * 10$

Divide both sides of the equation by 25 to equal the expression.

⇒ $x=(30 * 10)/(25)$

⇒ x = 12

(2) Side of triangle = $4(1)/(3) =(13)/(3)$

If the two triangles are similar and the angles of two triangles are congruent then the corresponding sides are in proportion.

⇒ $(26)/((13)/(3) )=(21)/(x)$

Do cross multiply.

⇒ $26 * x=21 * (13)/(3)$

⇒ $26 * x=7 * 13$

Divide both sides of the equation by 26 to equal the expression.

⇒ $x=(7 * 13)/(26)$

⇒ $x=(7 )/(2)$

⇒ $x=3(1 )/(2)$

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Answers

Original price of skate board = $130
25% of its price(Discount)= 25/100*130 =$ 32.50
Price after discount = $130-$32.50 = $97.50

Amount Josie has = $90
Amount Josie needs more = 97.50 - 90 = $7.50

First, work out the discounted price of the skateboard.

25% = 25
100 - 25 = 75

($130 × 75) ÷ 100 (to get the answer as a percentage) = $97.50.

If Josie has $90, you work out how much more she needs by doing $97.50 - $90, which is $7.50.

The answer is $7.50.

PLEASE ANSWER ASAP! MUST BE CORRECT! MORE POINTS GIVEN!

Answers

Lets check and see which ones are proportional.

A) 1/3 = 2/6 < Proportional.

4/9 doesn't equal to 1/3.

A is not correct.

B) Lets check B.

1/2 = 3/6
3/6 = 5/10
5/10 = 1/2
7/14 = 1/2

B is correct! They are proportional!

Answer:- B is the correct answer.

Please I need help on this one

Answers

Answer:

2520

Step-by-step explanation:

18×24=432

432÷2=216

216×35=7560

7560÷3=2520

Is 7 x (6 x t) equivalent to (7 x 6) x t

Answers

Yes the associative property of multiplication allows this to be true

In other words, you can multiply in different groupings and still get the same result

Example: (2*3)*5 = 6*5 = 30 or 2*(3*5) = 2*15 = 30

7 x (6 x t)= 7 x 6t= 42t
(7 x 6) x t = 42 x t= 42t
yes they're equivalent

Antonio read 1/2 of the pages in a chapter in his book.If he read 9 pages,how many pages are in the chapter??

Answers

9 is 1/2 of the chapter, find the whole.

9 + 9 = 18
1/2 + 1/2 = 1

18 is the number of pages in the chapter

1/2 = 9 then 1 = 18. The answer is 18.

What is a "summary number model"?

Answers

really i think it means to make a summary on how you do it ...

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