Answer:
<em>-</em><em>7</em>
Step-by-step explanation:
<em>a=9 a2=2 a3=-5 a4=-12 </em>
<em>d = a4-a3 ,a3-a2, a2-a.</em>
<em>so</em><em>: </em>
<em>d = -12-(-5) =-12+5 =-7</em>
<em>also;</em>
<em>d = -5-2 = -7</em>
<em>and </em>
<em>d</em><em>= 2-9 =-7</em>
<em> so the common difference is -7</em>
Answer:
X = .5
Step-by-step explanation:
10 × 20 = 200
10.5 × 20 = 210
Explanation:
Y = 210
210 = 20(10+X)
divide both sides by 20
10.5 = 10+X
subtract 10 from both sides
.5 = X
X = .5
Answer:
(3, -4) or x = 3 and y = -4
Step-by-step explanation:
Hope this helps!
There are 15 students who take Latin, and 10 students who take both.
Therefore:
15+10 =25 total students taking Latin
25students / 50 total students = 1/2
The answer is 1/2.