Answer:
x=5
Step-by-step explanation:
(x^2)-25=0
(x^2)=25
√(x^2)=√25
x=√25
x=5
Answer:
48/b
Step-by-step explanation:
32÷16=2 so it takes two minutes per airplane. if she makes airplanes for 96 minutes at the same pace (2 min per airplane) then you need to divide 96 by 2 which gives you 48!
5 weeks. (This can be represented by the equation 7+.6x=10)
Let the first term be a, 4th term be 
, difference between terms be d, and sum of first nine terms be 
.
= a + 3d
32 = 11 + 3d
3d = 32 - 11
3d = 21
d = 7
= 
= 
= 9(11+28)
= 9(39)
= 325
Sum of first nine terms is 351.
