Answer:
-19
Step-by-step explanation:
5v+3w
Let v = -5 and w=2
5(-5) + 3(2)
Multiply first
-25 + 6
The add
-19
Answer:
B The number of candles Sallie sells
Step-by-step explanation:
Given the equation :
y = 8x
y = amount earned ; x = number of candles sold
Cost per candle = 8
The Independent variable is the number of candles sallie sells as it is this variable which determines the amount which sallie will earn from candle sales (dependent variable). In essence, the variable which determines or affects the dependent variable is the independent variable.
250m should be the answer
Answer:
Mixture problemsare ones where two different solutions are mixed together ... should be added to the first in order to get amixture of 5% salt?4) How much ... 8 6) How many grams of pure acid must be added to 40 grams of a 20% acidsolution to ... make a Mixture that perliter?15) Solution A is 50% acid and solution B is 80% ...
Step-by-step explanation:
s = hours it takes the small pipe on its own.
L = hours it takes the large pipe on its own.
we know the small pipe can do it in 11 hours total, so s = 11, so, how much of the whole job has the small done in 1 hour only?
well, if it takes 11 hours to do the whole thing, in 1 hour it has done only 1/11 of the whole job.
we know both pipes working together can do it in 6 hours flat. So in 1 hour only, both of them have done only 1/6 of the whole thing.
in that 1 hour, how much has the large one done? well, it has only done 1/L of the job.
and you can round that up as needed.
