Answer: A
Step-by-step explanation:
Use this equation:
57/100 = X/10.
Cross multiply the two fractions (57x10)
=570
Now divide 570 by the only number left, 100.
=5.7
To solve this question, you have to estimate a little bit and find the<em> closest</em> answer.
Answer:
$3027.80
Explanation:
The compound interest formula is the following.

where
A = final amount
P = principle amount
r = interest rate / 100
n = number of compounds per interval
t = time interval
Now in our case,
A = unknown
P = $1900
r = 10.4/100
n = 12 months / year ( because the interest is compounded monthly)
t = 4.5 yrs
Therefore, the compound interest formula gives

Using a calculator, we evaluate the above to get

which is our answer!
The relationship between a and b is that they are SUPPLEMENTARY ANGLES
We first get rid of the fraction by multiplying both sides by 10
this gives us: -70+10x=x-160
subtract x from both sides
this gives us: =-70+9x=-160
add 70 to both sides
this gives us 9x=-90
divide both sides by 9
this gives us x=-10
Answer:
what?
Step-by-step explanation: