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2 years ago

Madison bought a dress priced at $98.25. The dress was 20% off. If she purchases the dress, what would the discounted price be?

Mathematics

1 answer:

RoseWind [281]2 years ago

7 0

Answer:

C. $19.65

Step-by-step explanation:

You have to find 20% of $98.25

This is equal to,

20% * $98.25 Because of usually means multiplication

= .20 * 98.25 Because .20 = 20%

= 19.65!

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olganol [36]

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2 years ago

Referring to the figure, find the volume of the solid<br> shown. Round to the nearest whole number.

mr_godi [17]

Answer:

846 m³

Step-by-step explanation:

The solid consists of a rectangular prism and a rectangular pyramid.

V = LWH + (1/3)LWh

V = 9 m * 6 m * 12 m + 1/3 * 9 m * 6 m * 11 m

V = 648 m³ + 198 m³

V = 846 m³

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2 years ago

A written explanation solving the question how much fluid is needed using the Pythagorean method and finding the area of the tri

Alecsey [184]

Answer:

793 liters of washing fluid is needed

Step-by-step explanation:

step 1

Find the slant height of the triangular faces of pyramid

we know that

The lateral area of a square pyramid is equal to the area of its four triangular faces

$LA=4[\frac{1}{2}bl]$

where

b is the base of triangle (is the same that the length of the square base)

l is the slant height

To find out the slant height we need to apply the Pythagorean Theorem

$l^2=(b/2)^2+h^2$

we have

$b=35.42\ m$

$h=21.64\ m$

substitute

$l^2=(35.42/2)^2+21.64^2$

$l^2=781.9337$

$l=27.96\ m$

step 2

Find the lateral area of the pyramid

$LA=4[\frac{1}{2}bl]$

we have

$l=27.96\ m$

$b=35.42\ m$

substitute

$LA=4[\frac{1}{2}(35.42)(27.96)]$

$LA=1,980.6864\ m^2$

step 3

Find out how much window washing fluid is needed

we know that

2 L of washing fluid cover 5 square meters

using proportion

$\frac{2}{5}\ \frac{L}{m^2}=\frac{x}{1,980.6864}\ \frac{L}{m^2}\\\\x=1,980.6864(2)/5\\\\x= 792.27\ L$

Round up

793 liters of washing fluid is needed

6 0

3 years ago

Is the relation { (3, 2), (-1, 2), (7, 2), (0, 2)} a function? Why or why not? List the domain and range.

Makovka662 [10]

Answer:

its a function because each input (X) only has one output (y)

domain (3,-1,7,0)

range (2)

Step-by-step explanation:

6 0

2 years ago

Solve x^2+ 17x-12=-84

kramer

Answer:

(X+9)(X+8)=0

X=-9,-8

Step-by-step explanation:

x^2+ 17x-12=-84

x^2+17x-12+84=0

x^2+17x+72=0

x^2+(9+8)X+72=0

x^2+9x+8x+72=0

X(X+9)+8(X+9)=0

(X+9)(X+8)=0

X=-9,-8

So the value of the X is -9,-8

4 0

3 years ago