Answer:
Exact Form:
1 + √5
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Answer:
Step-by-step explanation:
Answer:
x = 60
Step-by-step explanation:
Direct variation is of the form
y= kxz
We know x =40 and y =10 and z= 20
10 = k * 40 * 20
10 = k * 800
Divide each side by 800
10/800 = k
1/80 = k
The equation becomes
y = 1/80 xz
Let y = 30 and z = 40 and find x
30 = 1/80 * x * 40
30= 40/80 x
30 = 1/2x
Multiply each side by 2
2 * 30 = 2 * 1/2 x
60 = x
Answer:
(a) an = 18 +3(n -1)
(b) row 35
Step-by-step explanation:
(a) The general term (an) of an arithmetic sequence can be expressed in terms of the first term (a1) and the common difference (d) as ...
an = a1 +d(n -1)
The given sequence has a1 = 18 and d = 3, so the explicit formula is ...
an = 18 + 3(n -1)
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(b) We want to find n such that an = 120.
120 = 18 + 3(n -1)
40 = 6 + n - 1 . . . . . . . divide by 3
35 = n . . . . . . . . . . . . . subtract 5
Row 35 has 120 seats.
Answer:
500
Step-by-step explanation:
10% of people were supporting home and it was 50 people. Multiply 50 by 10 and you get 500. So the total number of people attending the game is 500.
Answer-500
