Solving the system of equations, it is found that Adrienne invested $1,366.67 in account A and $1,533.33 in account B.
<h3>System of equations:</h3>
The variables are:
- Variable A: Amount invested in account A.
- Variable B: Amount invested in account B.
The equations are:
From the first equation:
Replacing on the second:
Then, on the <em>first </em>equation:
Hence, Adrienne invested $1,366.67 in account A and $1,533.33 in account B.
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Answer:A
Step-by-step explanation: it's because you take your 3 wich you already know so then you have 2 times your unknown which is m so
3+2m
Answer:
b,,,,,d
Step-by-step explanation:
number of bags times how much it carries so the result equals kg hold
so we must the number 10 always so substitute in each equation to get the number 10
Answer:
10 kph
Step-by-step explanation:
Find the speed of the current of the river.
20/(20 - c) + 180/(20 + c) = 8
20(20 + c) + 180(20 - c) = 8(400 - c^2)
8c^2 - 160c + 800 = 0
8(c^2 - 20c + 100) = 0
8(c - 10)^2 = 0
c = 10
The speed of the current of the river is 10 km/hour.
Answer:
The interior angle of a 35-gon would be
169.71
o
Explanation:
The equation of the interior angle of an polygon is
(
n
−
2
)
180
n
= interior angle, where n is the number of sides.
A 35-gon has 35 sides.
(
35
−
2
)
180
35
(
33
)
180
35
5
,
940
35
169.71
The interior angle of a 35-gon would be
169.71
o
