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3 years ago

More math questions there are 2

Mathematics

1 answer:

7nadin3 [17]3 years ago

4 0

<em><u>Problem One</u></em>

Remark

You don't pay a sales tax until cash is exchanged for goods or services.

So what is 70% off

Solution

Sale price = given price * (100% - 70%)

Sale Price = 72 * 30%

Sale Price = 72 * 30/100

Sale Price = 72 * 0.3

Sale Price = 21.6 dollars.

The sales tax is 5% of this amount

21.6 * 5/100 = 1.08

The total cost is = 21.6 + 1.08 = 22.68

Problem Two

If they marked up 100%, effectively they doubled the price.

New Price = old price + 100% of old price.

New Price = 48.50 + 48.50 = 97 dollars.

The sales tax is 6% * 97 = 6/100 * 97 = 5.82

Total Cost = Cost of item + Tax

Total Cost =97 + 5.82

Total Cost = 102.82 Answer <<<<

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3 years ago

A figure skating school offers introductory lessons at $50 per session. There is also a registration fee of $75.

erica [24]

Answer:

Step-by-step explanation:

a. Y=50x+75

b. Y=50(7)+75

y=350+75

y=425

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3 years ago

Helppp - find the area of each figure & round to the nearest tenth

Karo-lina-s [1.5K]

Answer:

112 ft

Step-by-step explanation:

9) Here, we are finding the area of a triangle. The equation for area is:

$A = \frac{1}{2} *b*h$

Where A is area, b is the base, and h is height.

$A = \frac{1}{2} * 16 * 14$

$A = 112$

5 0

2 years ago

What is the area of this composite shape?

ZanzabumX [31]

Here,

In Right angle triangle,

base = 12 m

height = 8 m

Now,

◇ Area = 1/2*b*h

= 1/2*12*8

= 48 m^2

In semicircle,

radius = 4 m

Then,

◇Area" = 1/2*22/7*r^

= 1/2*22/7*4*4

= 25.14m^2

Again,

◆Total Area = Right triangle + semicircle

= (48+25.14) m^2

= 73.14 m^2

This is right answer...

I hope you understand...

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7 0

3 years ago

HELPPP ME OUTTTT!!!!!

ryzh [129]

Answer:

Measure of the unknown angle is 21°.

Step-by-step explanation:

In the given question,

Measure of opposite side and the measure of hypotenuse have been given.

Therefore, we will use the trigonometric ratio for the unknown angle which has the ratio of opposite side and the hypotenuse.

$\text{sin}\theta=\frac{\text{Opposite side}}{\text{Hypotenuse}}$

$=\frac{13}{36}$

$=0.36111$

$\theta \approx \text{sin}^{-1}(0.36111)$

$\theta \approx 21.17$

$\theta \approx 21^{\circ}$

Therefore, measure of the unknown angle is 21°.

3 0

3 years ago