So 3 have no pets, so 25 - 3 = 22 students have a pet.
There are 15 cats and 16 dogs so 15 + 16 = 31.
And then 31 - 22 = 9. The 9 means that 9 students have both pets.
So the probability is 9/25.
Answer:
1.) subtract = 1 1/3 - 3 1/2 = answer
2.) subtract = 6 3/4 - 1 1/2 = answer
3.) add = 3 1/4 + 2 1/8= answer
4.) subtract = 4 3/4 - 2 1/6 = answer
Step-by-step explanation:
5.) 3 lawns = 6 3/4 hrs
1st lawn 2 1/2 hrs
2nd lawn 1 3/4 hrs
add 2 1/2 + 1 3/4 = total
then 6 3/4 hrs - total = the amount it takes to mow the 3rd lawn
im sure u know how to add and subtract fractions is u r in middle school :)
Answer:
Elimination would be a better method for solving the system.
<h3>Given equation </h3>
<h3>Solution :-</h3>
putting the value in equation (i)