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nydimaria [60]
3 years ago
5

The price of an item yesterday was $140. Today, the price fell to $119. Find the percentage decrease.

Mathematics
2 answers:
disa [49]3 years ago
5 0
Answer

15%-

Explanation
34kurt3 years ago
4 0

Answer:

-15%

Step-by-step explanation:

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Let f(x) = 2x - 5 and g(x) = 3x. Perform the indicated
lorasvet [3.4K]

Answer:

f{3x}=6x-5

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please answer ASAP!!!
Leokris [45]
First you need to convert them all into percentages...

dolphin - 43.3%
lion - 56.3%
rabbit - 47.5%
squirrel - 62 %
tiger - 65.8%

1. dolphin, rabbit, lion, squirrel, tiger
2. average person sleeps 8 hours a day which equals 33.3% ( 8/24 )
3. you, dolphin, rabbit, lion, squirrel, tiger
6 0
3 years ago
Ashley has 100 books that she wants to give away at the rate of n books per week. Write a recursive function that represents the
Fofino [41]

She gives away n books per week, so If w =week number , then she has (100-nw) books left at any time.

this will be the explicit formula.

so we need to write in terms of recrusive.

to be recrusive each term must be expressed in terms of previous term.

in this represent a_{w[tex] +1} [/tex] in terms of a_{w}

a_{w} =100-n(w-1)

a_{w+1} =100-n(w+1-1)

replace w+1 in place of w .

a_{W+1} =100-nwa_{w} =a_{w+1} +n.

a_{w} -n=a_{w+1}. this will be the recrusive expression for number of books she left.

4 0
3 years ago
Michelle received an increase in salary from $33,000/yr to $35,000/yr.
RoseWind [281]
The increase percentage by using ((x-y)/x)x100 using x as the original price and y as the increase gives you about "6%" but I can be wrong.
5 0
3 years ago
Name the properties that were used to derive the properties of logarithms.
balandron [24]

The properties that were used to derive the properties of logarithms are the properties of exponent because logarithms are exponents. The properties of exponents are: product of powers, power to a power, quotient of powers, power f a product and power of a quotient.


As an example, the log property log(a^k) = k log (a) can be derived from the exponential property (b^a)^k = b^(ak).


Likewise,


log (ab) = log (a) + log (b) comes from c^(a+b) = c^a*c^b


Proof:


Let x = c^a and y=c^b


Then, 

log (x) = a and log (y) = b (base c)

<span>log (xy) = log (c^a * c^b) = log (c^(a+b)) = a+b = log(x) + log (y)</span>

5 0
3 years ago
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