Answer: 52
Step-by-step explanation: Not much work with this one but hope this helps :)
Answer:
9g/mL
Step-by-step explanation:
The density of something is mass/volume and the density of something never changes, no matter how much or how little there is of it.
We know that the mass of Cu (copper) is 45g and its volume is 5.0mL.
density = 45g/5.0mL
Plug that into a calculator and you'll get your answer.
Can you attach a picture so I can tell you the answer
Solving this kind of problem is easier if you take steps to make the coefficient of the unknown a positive one. Adding 0.6r to both sides makes the coeff. of r a positive one: 0.6r greater than or equal to 2.9+1.3.
0.6r then is equal to or greater than 4.2. Divide both sides by 0.6 to isolate r:
r greater than or equal to 7.
Let r be represented by the horizontal number line. Darken r = 7 and also darken the r axis to the right of r=7.
Answer:
Well, one night at the hotel equals $75.
Step-by-step explanation:
All you have to do is mulitlpy the nights by $75.
The last one is wrong it should be
5 nights = $375.
Hope this helps! Bye