Mathematics, 23.07.2019 23:00 Joshua10687

Tom has offered to sell julian his motorcycle for $1,200. julian knows this is a very good deal, since the same motorcycle can be purchased at the dealership for $1,800. since julian doesn’t have $1,200 and tom does not accept credit cards, they both think a cash advance might be a good idea. julian’s credit card company can offer him a cash advance for the $1,200 he needs at an interest rate of 26%. he would then pay off the balance in 24 months. should julian use the cash advance to purchase the motorcycle?

Answers: 2

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Answers

Yes, julian should take the cash advance because 26% of $1,200 is $312. then u add the $312 to $1,200 which is equal to $1,512. then u divide $1,512 by the 24 months, so $1,512 ÷ 24= $63. so julian will be paying $63. each month for 24 months which totals $1,512. tom is selling the bike for $1,200, so julian would be paying $1,200 plus $312 more with the interest rate, which is $1,512, but its still better than paying $1,800 at the dealership, and julian may never get another deal like tom's deal again.

Answer from: VampireQueen01

according to egenuity the correct answer is b

step-by-step explanation:

yes. even with the interest, the total cost of the motorcycle would be less than at the dealership.

Answer from: Quest

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

$ab^2+ac^2=bc^2$

$ab^2+ac^2=x^2$ )

triangle abd and cba are similar,

$\frac{ab}{bc}=\frac{bd}{ab}$

$ab^2=bc\cdot bd$

$25=bc\cdot bd$ (2)

triangle cad and cba are similar,

$\frac{ac}{bc}=\frac{cd}{ac}$

$ac^2=bc\cdot dc$

$7\times 7=bc\cdot dc$

$49=bc\cdot dc$ )

using (1), (2) and (3), we get

$25+49=x^2$

$74=x^2$

hence proved.

therefore option 2 is correct.

Answer from: Quest

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240