Cara's Candles Cara likes candles. She also likes mathematics and was thinking about using algebra to answer a question she had
about two of her candles. Her taller candle is 16 cm tall. Each hour it burns makes the candle lose 2.5 cm in height. Her short candle is 12 cm tall and loses 1.5 cm in height for each hour that it burns. Write an equation for both candles and solve it by either substitution or elimination.
(If someone could please help me out with this, I would really appreciate it. I've been trying to do this for days now and I just can't figure it out..)
(By the way, the equation for the 16 cm candle is y = -2.5x + 16, and the equation for the 12 cm candle is y = -1.5x + 12, I just don't know how to solve it using substitution or elimination.)
please help I don't understand
I WILL give branliest to whoever's right
I really need the answers
Step-by-step explanation: I think that because you have the equations already, you just have to solve for a variable using substitution. Do this by substituting one of the variables with another number. For example, make x=2 in both equations. Now you are free to solve for y and get your answer.
y=-2.5(2)+16
y=11
y=-1.5(2)+12
y=9
You can substitute in any number that makes it easy for you. Also, if you want x, you can substitute y. I'm really, really sorry if that is not helpful, I just told you what I know!
10d+5n+1p=446 subsitute n/2 for p subsitute n-5 for d 10(n-5)+5n+n/2=446 times 2 both sides 20(n-5)+10n+n=892 expand 20n-100+10n+n=892 31n-100=892 add 100 both sides 31n=992 divide both sides by 31 n=32
