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4 years ago

What would John pay for a CD player that sells for $550is discounted by 15%?

Mathematics

1 answer:

Natalka [10]4 years ago

6 0

Answer:

$467.5

Step-by-step explanation:

15%=15/100=0.15

0.15*the original price=82.5

john will pay $550-$82.5=$467.5

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Scientists bounce a laser beam off a mirror. It reflects at the same angle as it hits the

Paul [167]

Answer and Step-by-step explanation:

Simply use triangles to find the length of the lasers.

The first triangle consists of the sides of 12 inches, 18 inches, and the laser (which is the hypotenuse).

Use the <u>Pythagorean theorem</u> to solve for the hypotenuse.

( $a^{2}+ b^{2} = c^{2}$ )

$12^{2} +18^{2} = l^{2} \\\\144 + 324 = l^{2} \\\\468 = l^{2} \\\\Square-root-both-sides\\\\\ \\\sqrt{468} = l$

l ≈21.633

Now, we solve the other triangle.

$9^{2} +6^{2} = l^{2} \\\\81 + 36 = l^{2} \\\\117 = l^{2} \\\\Square-root-both-sides\\\\\sqrt{117} =l\\l = 10.8167$

Now, add those two hypotenuses.

21.6333 + 10.8167 = 32.45

32.45 rounds up to 32.5

32.5 is the total distance the laser beam travels.

#teamtrees #WAP (Water And Plant)

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3 years ago

The volume of a sphere is decreasing at a constant rate of 5517 cubic centimeters per minute. At the instant when the volume of

denis-greek [22]

Answer:

I think the answere is 100 because i took a guess

Step-by-step explanation:

6 0

4 years ago

Factorize x2+x-42....please how do I do it

just olya [345]

${\huge {\mathfrak {Answer :-}}}$

✨x^2 + x - 42

= x^2 + 7x - 6x - 42

= x(x + 7) - 6(x + 7)

= (x + 7)(x - 6).

Done.. ✔️

4 0

3 years ago

Simplify question 2 please ASAP !!!!

Mrrafil [7]

Answer:

$\sqrt[3]{ - 0.125} = \sqrt{ - 1} \times \sqrt[3]{0.125 } \\ = 5i$

here i equals √-1

Step-by-step explanation:

Answer is 5i

If you have any doubts write in comments box.

HAVE A NICE DAY !

3 0

3 years ago

The area of a square garden is 200 m^2. How long is the diagonal?

Sladkaya [172]

Answer:

b. 20 m

Step-by-step explanation:

Let A represent the area

Let d represent the diagonal

then

$A=\frac{d*d}{2} = \frac{d^{2} }{2}$

Then

d² = 2A

then

$d = \sqrt{2A} =\sqrt{2*200} =\sqrt{400} = 20$

8 0

3 years ago

What would John pay for a CD player that sells for $550is discounted by 15%?​

What would John pay for a CD player that sells for $550is discounted by 15%?