75 hours because they both do it in the future
Answer:
<u>It takes them 30/11 hours to paint them together.</u>
Step-by-step explanation:
This is known as a work problem (rate * time = work). We are given the individual times for Tom and Huck (6 hours and 5 hours respectively). However, we are not given the rates at which they can paint the fence. Since we know that the total work that they both do individually is 1 (there is 1 job to do), we can calculate the rates at which Tom and Huck paint the fence on their own:
We can isolate R{t} and R{h} to find the rates at which Tom and Huck work:
Now, we can calculate the time it takes for Tom and Huck to work together using the same formula (the combined rate is just the sum of Tom and Huck's individual rates):
Therefore, the time it takes them to paint the fence together is <u>30/11 Hours</u>
Answer:
A) 20ml
Step-by-step explanation:
You have a 2.5% solution (in 100 of the solution you have 2.5 of solvent), then if the dose that is being supplied to the cat is 5mg / kg it means:
if 1000 gr is equivalent to 100%
5 gr is equivalent to X;
X= (100%*5gr)/1000gr → X= 0.5%, , Therefore the amount of milliliters that should be supplied of 2.5% is:
if 100ml hava a concentration of 2.5, how many mililiters are necesary in a concentration 0.5
X=(0.5%*100ml)/2.5% → X=20ml
Answer:
Yes
Step-by-step explanation:
12/21 simplified is 4/7. if you divide the numerator (12) by 3 and the denominator (21) by 3, you get 4 and 7, or 4/7 if you put it together.