Hey there!
You have to find a common denominator. That is 15. So multiply 4/5 by 3 on the bottom and top to get 12/15. Multiply 1/3 by 5 to get 5/15. The equation is now 12/15-5/15. 12-5=7. You don’t change the denominator though, so the answer would be 7/15.
I hope this helps!
Answer:
8/27
Step-by-step explanation:
<u><em>Given:</em></u>
<em>In a class of 27 students, 18 are female and 8 have an A in the class. There are 2 students who are female and have an A in the class.</em>
<u><em>To Find:</em></u>
<em> What is the probability that a student chosen randomly from the class has an A?</em>
<u><em>Solve:</em></u>
<em>Given:</em>
<em>Total : 27</em>
<em>Female : 18</em>
<em>A : 8</em>
<em>A Female : 2</em>
<em />
<em>Therefore,</em>
<em />
<em>8/27</em>
<em />
<u><em>Kavinsky</em></u>
Answer:
Constants
We call them constants because their value never change. Since there are no variables in the term that can change its value.
1/2 × 40 = 2x + 8
⇔ 20 = 2x + 8
⇔ 12 = 2x
⇔ x = 6
Answer:
0.40g MgO - 0.24g Mg = 0.16g O
Step-by-step explanation: