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3 years ago

A sweatshirt was on sale for 32% off and cost $40.80 without tax. What was the original price of the sweatshirt?

Mathematics

1 answer:

klio [65]3 years ago

8 0

Answer:

The original price of the sweatshirt was $127.50

Step-by-step explanation:

$40.80 / .32(32%) = $127.50

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LAST ATTEMPT! MARKING AS BRAINLIEST!! ( simplifying radicals)

serious [3.7K]

$\huge \bf༆ Answer ༄$

Let's solve ~

$\qquad \looparrowright \sf - 7 \sqrt{80 {x}^{4} y {}^{2} }$

$\qquad \looparrowright \sf - 7 \sqrt{2 {}^{4} \times 5 \times {x}^{4} \times {y}^{2} }$

$\qquad \looparrowright \sf - 7 \times {2}^{2} \times {x}^{2} \times y \times \sqrt{5}$

$\qquad \looparrowright \sf - 28 {x}^{2} y \sqrt{5}$

Therefore, Option D is correct ~

8 0

2 years ago

The population of rabbits on an island is growing exponentially. In the year 1994, the population of rabbits was 9600, and by 20

drek231 [11]

Answer:

49243

Step-by-step explanation:

Given that the population of rabbits on an island is growing exponentially.

Let the population, $P=P_0e^{bt}$

where, $P_0$ and b are constants, t=(Current year -1994) is the time in years from 1994.

In 1994, t=0, the population of rabbit, P=9600, so

$9600=P_0e^{b\times 0}$

So, $P_0=9600$

and in 2000, t=2000-1994=6 years and population of the rabbit, P=18400

$18400=9600 \times e^{b\times 6} \\\\\frac{18400}{9600}=e^{b\times 6} \\\\$

$\ln(23/12}=6b \\\\$

$b = \frac{\ln{1.92}}{6} \\\\$

b=0.109

On putting the value of P_0 and b, the population of the rabbit after t years from 1994 is

$P=9600 \times e^{0.109\times t}$

In 2009, t= 2009-1994=15 years,

So, the population of the rabbit in 2009

$P=9600 \times e^{0.109\times 15}=49243$

Hence, the population of the rabbit in 2009 is 49243.

7 0

3 years ago

The attachment is below

OverLord2011 [107]

Answer:

B) 1) -10 2) 4

C) 1) 16 2)-178 3)-315 4) 144

Step-by-step explanation:

input the f(x) number wherever the x is.

For example B) 1)f(x)= -1; 9- -1 -6 times -1

9 + 1 -6(-1) = 10 + 6 = 16

7 0

3 years ago

Scan domain, range and graph of the following functions:

FinnZ [79.3K]

Sorry can't include the graphs, just subsitute y for f(x) and graph by subsituting values

so domain is the set of numbers you are allowed to use
range is the set of number you get from inputing the numbers from the domain into the function

so normally the domain is all real numbers
you must exclude number from the domain that make mathematical undifined impossible stuff exg dividing by zero so
not sure about the ranges so I will leave that out

a. denomenator is x-2
cannot be zero
x-2=0
add 2
x=2

domain: all real numbers except for 2

b. x+2=deomenator
x+2=0
subtract 2
x=-2
x acannot be -2

domain: all real numbers except for -2

c
x cannot be 0
domain: all real numbers except for 0

d. x cannot be -1
domain: all real numbers except for -1

e: x cannot be a negative number or 0
domain: all real numbers greater than zero

f: x cannnot be -2
domain: al real numbers except -2

g: x cannot be 0
domain: all real number except 0

h: x cannot be zero
domain: all real numbers except 0

i: x cannot be 1
doman: all real number except 1

j: 5x-2=0
add 2
5x=2
divide 5
x=2/5

x cannot be 2/5
domain: all real numbers except for 2/5

5 0

3 years ago

my teacher has 30 red apples and 40 green apples is she adds all of them together how many will she have

maksim [4K]

She will have 70 green apples

7 0

3 years ago

Read 2 more answers