If the height of candle after 10 and 26 hours are 25 cm and 17 cm then the height of candle after 21 hours is 19.5 cm.
Given height of candle after 10 hours is 25 cm , height of candle after 26 hours is 17 cm.
We have to find the height of candle after 21 hours.
We have been given two points of linear function (10,25),(26,17).
We have to first form an equation which shows the height of candle after x hours.
let the hours be x and the height be y.
Equation from two points will be as under:
(y-25)=(17-25)/(26-10)* (x-10)
y-25=-8/16 *(x-10)
16(y-25)=-8(x-10)
16y-400=-8x+80
8x+16y=480
Now we have to put x=21 to find the height of candle after 21 years.
8*21+16y=480
168+16y=480
16y=480-168
16y=312
y=312/16
y=19.5
Hence the height of candle after 21 hours is 19.5 cm.
Learn more about equation at brainly.com/question/2972832
#SPJ4
Answer:
4/5
Step-by-step explanation:
y = mx + b
4/5 = m = slope
-12 is an integer number, and you can write it as {-12}{1}
7.3 is a rational number, and you can write is as {73}{10}
0.41 is a rational number, and you can write is as {41}{100}
6 is a whole number, and you can write it as {6}{1}
3 1/2 is a rational number, and you can write is as
3+{1}{2}={6}{2}+{1}{2}={7}{2}
Hopes this helps also will you mind giving me brainliest?
Divide, 10/8, you get your answer. Then add that answer with 4.32 . After that, Sudtract, 291.15x-1.94x, Then you put that to the right.
Answer:
The amount of money that should be invested at the rate of 12% is $900 and the amount of money that should be invested at the rate of 10% is $2,100
Step-by-step explanation:
Let
x ------> the amount of money that should be invested at the rate of 12%
3,000-x -----> the amount money that should be invested at the rate of 10%
we know that
The sum of the interest on each of the accounts must be equal to the total interest.
Solve for x
therefore
The amount of money that should be invested at the rate of 12% is $900 and the amount of money that should be invested at the rate of 10% is $2,100
Hope this helps you!!!! :D
