Answer:
Step-by-step explanation:
Answer:
9.
Step-by-step explanation:
Count the number of digits after the first digit,
This is 9.
Answer:
The answer to your question is: 29 tickets for children and 58 tickets for men.
Step-by-step explanation:
Child = c = $ 5.50
Adult = a = $8.80
Equation
a = 2c
5.5c + 8.8a = 669.9
5.5c + 8.8(2c) = 669.9
5.5c + 17.6c = 669.9
23.1c = 669.9
c = 669.9 / 23.1
c = 29
a = 2(29)
a = 58
<h3>
Answer: 81</h3>
==============================================
Work Shown:
a = first term
a*(2/3) = (2/3)a= second term
(2/3)a*(2/3) = (4/9)a = third term
note how I multiplied each previous term by the common ratio (2/3) to get the next term
Add up the three terms
a + (2/3)a + (4/9)a = (9/9)a + (6/9)a + (4/9)a = (19/9)a
Set this equal to 171, which is what we want the first three terms to sum to, then solve for 'a'
(19/9)a = 171
a = (9/19)*171
a = 81 is the first term
------------------------------------
Checking the answer:
a = 81 = first term
(2/3)*a = (2/3)*81 = 54 = second term
(4/9)*a = (4/9)*81 = 36 = third term
adding up the three terms gets us
81+54+36 = 171
so we have confirmed the answer
Answer:75
Step-by-step explanation: 50 + 25
