Hello there! :)
Answer:
1. 
2. 
Step-by-step explanation:
1. 3/5+4/15
First, you multiply by numerator and denominator.
3*3=9
5*3=15

Then, you had to combine by the fractions.

Add by the numbers from left to right.
9+4=13
<u><em>13/15 is the final answer.</em></u>
______________________________________________
2. 5/6-1/4
First, you multiply by 2 both sides of numerator and denominator.
5*2=10
6*2=12
10/12
3/12

Subtract by the numerator.
10-3=7
<em><u>7/12 is the final answer.</u></em>
______________________________
Hope this helps!
Thanks!
Have a nice day! :)
:D
-Charlie
Answer:
t ≤ 15
Step-by-step explanation:
One third of 15 is equal to five (1/3 × 15 = 5)
One third of t is lesser than or equal to five (1/3 × 5 ≤ 5)
<em>So, t cannot be more than 15.</em><em> </em><em>It</em><em> </em><em>can</em><em> </em><em>be</em><em> </em><em>equal</em><em> </em><em>to</em><em> </em><em>1</em><em>5</em><em>,</em><em> </em><em>though</em><em>.</em>
∴t ≤ 15
Answer:
Third option
Step-by-step explanation:
Given the following question where...

A triangle adds up to 180 degrees
50 + 120 = 170 + 10 = 180
The measurement of the third angle is 10 degrees or the third option.
Hope this helps.
Answer:
-3 1/3 , - 1 , -1/2 , 0 , 1 , 4 , 5 , 6 , 21/5