Let the amount that the man placed in the first investment be
. Then, the amount that he placed in the second investment has to be
. Using those as the investment amounts, the total profit is given by adding the two separate profits as shown:
We can now solve for x:
Thus,
First investment:
Second investment:
Step-by-step explanation:
<em>here's</em><em> your</em><em> solution</em>
<em> </em>
=> time for Bettinia = 3.8 hrs
=> speed of her = 56 mph
=> distance covered by her = 3.8*56 = 212.8m
=> time for wills = 4.1 hrs
=> speed of wills = 52 mph
=> distance = 4.1 * 52 = 213.2m
=> wills covered more distance = 0.4 m
hope it helps
Y = 11 x + 1
11 x + 12 y = 12
----------------------
11 x + 12 * ( 11 x + 1 ) = 12
11 x + 132 x + 12 = 12
143 x + 12 - 12 = 12 - 12
143 x = 0
x = 0
y = 11 * 0 + 1
y = 0 + 1
Answer:
y = 1
Since this is an arithmetic sequence, you can conclude that
the addition to the number is constant.
Let x = the number asked
k = constant
number added to the sequence
7 + k = x
x + k = 17
Solve the system of equation:
7 + k + k = 17
7 + 2k = 17
2k = 10
k = 5
Therefore, the missing number is 12 (7 + 5).