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3 years ago

An electronics store had a sale in which it decreased all its prices by 24%.

Mathematics

1 answer:

kompoz [17]3 years ago

8 0

Answer:

Step-by-step explanation:

Let the Original price = $ x

24% of x = $85

$\frac{24}{100}*x=85\\\\x=\frac{85*100}{24}\\\\$

x = $ 354.17

Amount paid by Tom = 354.17 - 85 =$ 269.17

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Find the perimeter of the figure

nalin [4]

Answer:

The perimeter is 66.9 units

Step-by-step explanation:

See the attached figure with letters to better understand the problem

step 1

In the right triangle ABD

<em>Find the length side AD</em>

$tan(33^o)=\frac{8}{AD}$ ----> by TOA (opposite side divided by the adjacent side)

$AD=\frac{8}{tan(33^o)}=12.3\ units$

Find the length side BD

$sin(33^o)=\frac{8}{BD}$ ---> by SOH (opposite side divided by the hypotenuse)

$BD=\frac{8}{sin(33^o)}=14.7\ units$

step 2

In the right triangle CDE

Find the length side CE

$cos(64^o)=\frac{CD}{CE}$ --> by CAH (adjacent side divided by the hypotenuse)

we have

$CD=BD/2=14.7/2=7.35\ units$

substitute

$CE=\frac{7.35}{cos(64^o)}=16.8\ units$

Find the length side DE

$tan(64^o)=\frac{DE}{CD}$ --> by TOA (opposite side divided by the adjacent side)

$DE=tan(64^o){7.35}=15.1\ units$

step 3

Find the perimeter of the figure

The perimeter is equal to

$P=AB+AD+BD+CE+DE$

substitute the values

$P=8+12.3+14.7+16.8+15.1=66.9\ units$

5 0

3 years ago

The figure below shows the quotient of Fraction 3 over 4 divided by Fraction 3 over 8 .

Orlov [11]

Answer:

i think i know

Step-by-step explanation:

3 0

3 years ago

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63 is 90% of what number? Using double number lines.

USPshnik [31]

Answer:Since the 90% is 63.

Step-by-step explanation:

3 0

3 years ago

I just need to see how to work this problem out, so I don't have to ask a question like this again..and I know what I'm doing ne

mihalych1998 [28]

Answer by Mimiwhatsup:

$-6x+12>24\\\mathrm{Subtract\:}12\mathrm{\:from\:both\:sides}\\-6x+12-12>24-12\\Simplify\\-6x>12\\Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)\\\left(-6x\right)\left(-1\right)$

$=-\frac{12}{6}\\\mathrm{Divide\:the\:numbers:}\:\frac{12}{6}=2\\=-2\\Answer is: x$

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3 years ago

A summer carnival charges a $2 admission fee and $0.50 for each ride. If Tamara has $10 to spend, how many rides can she go on?

marishachu [46]

Start with $10.00.

Subtract the admission fee of $2.00.

So, she now has $8.00 to spend on rides.

Divide $8.00 by $.50 to determine the number of rides she can ride.

16 rides

6 0

3 years ago

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