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balandron [24]
3 years ago
11

A proof in which you assume the opposite of what you want to prove is called what?

Mathematics
1 answer:
Taya2010 [7]3 years ago
4 0
Proof<span> by contradiction........... </span>
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A pair of pants regularly costs $68. The pants are on sale for 45% of the original price. How much will the discount be?
Novay_Z [31]

The discounted amount of pair of pants is $37.4

<u>Solution:</u>

Given, A pair of pants regularly costs $68.  

The pants are on sale for 45% of the original price.  

We have to find that how much will the discount be?

Now, <em>discounted amount = original price – sold price </em>

Discounted amount = original price – 45% of original price

Discounted amount = $68 – 45% of $68

\begin{array}{l}{=68-\frac{45}{100} \times 68=68\left(1-\frac{45}{100}\right)=68 \times \frac{100-45}{100}=68 \times \frac{55}{100}} \\\\ {=\frac{3740}{100}=\$ 37.4}\end{array}

Hence, the discounted amount is $37.4

6 0
2 years ago
Someone should help me out please​
Maurinko [17]

Answer:

18 in

Step-by-step explanation:

First you would multiply 2·5=10 then for the area of the bottom shape you already have 4 for one side to get the other side you subtract 7-5 and get 2 so 4·2=8 so then add the areas of both shapes and get 18

4 0
3 years ago
Free brain list what is 1+1 (super hard)
Scilla [17]

Answer:

2

Step-by-step explanation:

SOOO HARD XD

8 0
3 years ago
Read 2 more answers
Chelsey put for $450 into an account with a simple interest rate of 2.5% when she withdrew the money she had earned a total of $
fgiga [73]

Answer:

5.66 years

Step-by-step explanation:

450 x 1.025^(n) = 450 + 67.50

450 x 1.025^(n) = 517.50

1.025^(n) =(517.50 / 450)

1.025^(n) = 1.15

n = ln(1.15) / ln(1.025)

n = 5.66

6 0
2 years ago
A random sample of 20 UF students is taken to test UFs claim that 54% of the student population are female.
baherus [9]

You didn't give the multiple choice so no one can help you do make sure to include that next time

8 0
2 years ago
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