we know that
the speed's formula is equal to
in this problem we have
Substitute the values in the formula
therefore
<u>the answer is</u>
Answer: 40
Step-by-step explanation:
5 hrs 45 min + 5hrs 45 min
(5 + 5)hrs + (45+45)min
10 hrs + 90 min
we can write it as
11 hrs 30 min
Answer choice D...because the number of children need to be GREATER than 100
11 times as many damselfish as clownfish would mean damselfish = 11 times clownfish. Use variable to represent each fish, so variable c will be used to represent clownfish and variable d with be used to represent damselfish. So from as before, d = 11c . Since there is a total of 36 fish, the equation would look to be about d + c = 36. Since we know that d = 11c, you replace the d with 11c. So it will now look like 11c + c = 36. Add like terms , which will be 11c + c to equal 12c. So the new equation is now 12c = 36. To isolate variable c, divide 12 to both sides to get c = 3 . There are 3 clownfish. To find out how many damselfish, replace 3 with c in the equation for d, which is d = 11c. d = 11(3) . d = 33. There are 33 damselfish and 3 clownfish in the tank.
