14a. C = 0.09(m - 25) + 50
C = 0.09(80 - 25) + 50
C = 0.09(55) + 50
C = 4.95 + 50
C = 54.95
14b. C = 0.09(m - 25) + 50
85 = 0.09(m - 25) + 50
- 50 - 50
35 = 0.09(m - 25)
0.09 0.09
388⁸/₉ = m - 25
+ 25 + 25
413⁸/₉ = m
14c. The input values that are below 25 does make any sense because it shows that the input values can make the output values decrease itself.
There is not enough info to answer this
Answer:
He add $5 more each month
Step-by-step explanation:
* Lets consider this problem as an arithmetic sequence because
he add every month x dollars more
∵ He start with 50 dollars ⇒ a (1st amount)
∵ He add x dollars every month ⇒ d
∵ He did that for 36 months ⇒ n
∵ He saved 4950 dollars ⇒ Sn
∵ Sn = n/2[2a + (n - 1)d]
* Where Sn is the total money after <em>n</em> months
<em>a</em> is the first amount he saved
<em>d</em> is the money he add more each month
∴ 4950 = 36/2[2(50) + (36 - 1)(x)]
∴ 4950 = 18[100 + 35x]
∴ 4950/18 = 100 + 35x
∴ 35x = 275 - 100 = 175
∴ x = 175/35 = 5 dollars
My Answer is 10
your welcome
Answer:
24
Step-by-step explanation:
Substituting...
4(3) - 6(- 2)
12 + 12
24