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3 years ago

9

On sale , the original price of every jacket in a store is reduced by 20% . Later , this sale price is further reduced by anothe

r 20% to create a final price . The store could have reduced the original price directly to the final price by what single percent ?

1 answer:

dimulka [17.4K]3 years ago

4 0

Answer:

40%

Step-by-step explanation:

20% + 20% = 40%

Hope this helps!

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pamela claims that if you multiply a fraction that is negative by another fraction that is negative, the product will also be ne

svetoff [14.1K]

Pamela is incorrect. When you multiply anything negative by a negative, the product will always be a positive. Because the two negative signs cancel each other out.

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3 years ago

Lucy wants to be exempt from her semester exam. In order for that to happen, she has to average an 85 over 3 test grades. Her fi

anastassius [24]

Answer:

<em>Grades to be scored in 3rd exam = 88</em>

Step-by-step explanation:

Given that average of 3 numbers is 85.

First two numbers are 81 and 86.

To find:

3rd number so that average is 85

Solution:

Let the third number = $x$

Formula for average is:

$Average = \dfrac{Sum\ of\ numbers}{Total\ count\ of\ numbers}$

Here, sum of numbers = $81+86+x =167+x$

Total count of numbers = 3

$85 = \dfrac{167+x}{3}\\\Rightarrow x=255-167\\\Rightarrow \bold{x=88}$

<em>Grades to be scored in 3rd exam = 88</em>

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3 years ago

Log2(3x+1)=log4(x+8)

lara31 [8.8K]

Answer:

(1.35, 1.6)

Step-by-step explanation:

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2 years ago

mason worked 24 hours at the book shop at an hourly rate of $ 8.75 . how much medicare tax will be deducted from his paycheck th

Charra [1.4K]

First, find out how much he made in the week total: 24($8.75) = $210
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3 years ago

Let f={(1,2),(2,3),(5,6),(7,8) evaluate f(2)and f(5)?

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Given:

$f=\{(1,2),(2,3),(5,6),(7,8)\}$

To find:

The values of f(2) and f(5).

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If an ordered pair $(x,y)$ is in the function $f$ , then $f(x)=y$ .

In the given set of ordered pairs one ordered pair is (2,3). So, by using the above definition, we get

$f(2)=3$

In the given set of ordered pairs one ordered pair is (5,6). So, by using the above definition, we get

$f(5)=6$

Therefore, the value of f(2) is 3 and the value of f(5) is 6.

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2 years ago