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3 years ago

What is the final cost of a $499 iPad that has been marked down 20% and includes 7% sales tax?

Mathematics

2 answers:

lapo4ka [179]3 years ago

4 0

Answer:

Step-by-step explanation:

Given that the original price of the TV is $499, the new price after the given percent of change of 10% would be, $548.9. 10% of $499 is $49.9. This is added to the original price. Now, if the increase is 30%, 30% of $499 would be $149.7. Add this to $499 and the new price is $648.7. Hope this answers your question.

VLD [36.1K]3 years ago

3 0

Answer:$427.14

Step-by-step explanation:

Multiply $499 and 20% = 99.8

499-99.8=399.2

399.2 multiplied by 7%=27.944

Add 399.2 and 27.944= 427.144

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Find the value of z. round to the nearest hundredth

Svetradugi [14.3K]

ANSWER

C. 64.29

EXPLANATION

The bigger right triangle is similar to the smaller right triangle, therefore

$\frac{30}{14} = \frac{z}{30}$

Multiply both sides by 30;

$30 \times \frac{30}{14} = \frac{z}{30} \times 30$

Simplify

$z = \frac{900}{14}$

$z = 64.28571429$

We correct to the nearest hundredthth to obtain,

$z = 64.29$

The correct choice is C.

3 0

3 years ago

The area of a rectangular flower bed is 24 square feet. The perimeter of the same flower bed is 22 feet. What are the dimensions

Vesna [10]

Answer:

3 ft by 8 ft

Step-by-step explanation:

We were given the area as 24 square feet which means that

L×w= 24....eqn(1)

We were given the perimeter as 22 square feet which means that

22= 2(L +w).......eqn(2)

If we divide both cause by 2 in eqn(2) we have

11= L+ w .....eqn(3)

W= 11-L.........eqn(4)

Substitute eqn(4 into eqn(1)

L× (11-L)=24

-L^2 +11L-24=0

If we factorize

(L-8)(L-3)

L=3 or 8

From eqn4)

W=11-L

At L=3

W=11-3=8

Hence, the dimension is 3 ft by 8 ft

4 0

3 years ago

Triangle ABC and DEF are right triangles, as shown. Triangle ABC is similar to triangle DEF. which ratios are equal to sin C?

Dafna11 [192]

Answer:

First option and Fourth option.

Step-by-step explanation:

To solve this exercise you need to use the following Trigonometric Identity:

$sin\alpha=\frac{opposite}{hypotenuse}$

In this case you know that:

$\alpha =C$

Since triangle ABC is similar to triangle DEF:

$\angle C=\angle F$

Let's begin with the triangle ABC.

You can identify that:

$opposite=AB\\hypotenuse=AC$

Then, substituing values, you get:

$sinC=\frac{AB}{AC}$

In triangle DEF, you know that:

$opposite=DE\\hypotenuse=DF$

So, substituing values, you get:

$sinF=sinC=\frac{DE}{DF}$

4 0

3 years ago

What's the ? ,need help asap

zaharov [31]

Answer:

Step-by-step explanation:

just a guess

9+3+6+7 = 25

5+5+4+9 = 23

6+8+4+? = 24 ? = 6

8 0

2 years ago

Suppose that all the points on the circular dartboard shown are equally likely to be hit by a dart. if the radius of the red cir

Anestetic [448]

This equals the the area of white part / area of the entire dartboard

area of the entire board = pi * 6^2 = 36pi

area of white part = 36pi - 2^2*pi = 32pi

do required probability = 32pi / 36pi = 0.889 or 88.9 % (to nearest tenth)

or as a fraction it is 8/9

8 0

3 years ago

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