120% of what number is 84?

Hoping you can solve all of these problems!

nadya68 [22]

Answer:

n-13

3n
12x-9
-k
-30n
-4n

Step-by-step explanation:

5 0

3 years ago

in Colorado the state sales tax is 2.9%. if you buy a $2100 computer in Colorado, how much state tax will you pay?

Shtirlitz [24]

Answer:

$60.9

Step-by-step explanation:

Tax = 2.9% of Cost to be bought

= 2.9 / 100 × 2100

= $60.9

6 0

3 years ago

A certain car depreciates such that its value at the end of each year is p % less than its value at the end of the previous year

icang [17]

Answer:

b(b/a)^2

Step-by-step explanation:

Given that the value of the car depreciates such that its value at the end of each year is p % less than its value at the end of the previous year and that car was worth a dollars on December 31, 2010 and was worth b dollars on December 31, 2011, then

b = a - (p% × a) = a(1-p%)

b/a = 1 - p%

p% = 1 - b/a = (a-b)/a

Let the worth of the car on December 31, 2012 be c

then

c = b - (b × p%) = b(1-p%)

Let the worth of the car on December 31, 2013 be d

then

d = c - (c × p%)

d = c(1-p%)

d = b(1-p%)(1-p%)

d = b(1-p%)^2

d = b(1- (a-b)/a)^2

d = b((a-a+b)/a)^2

d = b(b/a)^2 = b^3/a^2

The car's worth on December 31, 2013 = b(b/a)^2 = b^3/a^2

4 0

3 years ago

HELP. NEED ANSWERS!!

vazorg [7]

Answer:

d i thin;kStep-by-step explanation:

nugget 2020nugget 2020

nugget 2020

5 0

3 years ago

Caden is a bird enthusiast and is trying to estimate the number of hawks living in his region. He traps 23 hawks and tags them.

serious [3.7K]

I believe the answer is 415
PLEASE MARK BRAINIEST!

6 0

3 years ago