PART A
apples = a
bananas = b
a + b = 20
$0.50a + $0.75b = $11.50
PART B
a + b = 20
a +b -b = 20 - b
a = 20 -b
$0.50(20-b) + $0.75b = $11.50
10 - 0.50b + 0.75b = $11.50
10 + 0.25b = 11.50
10 -10 + 0.25b = 11.50 -10
0.25b = 1.5
0.25b/0.25 = 1.5/0.25
b = 6
a = 20 -b
a = 20 -6
a = 14
PART C
Missy bought 14 apples and 6 banans.
Check
$0.50(14) + $0.75(6) = $11.50
$7 + $4.50 = $11.50
$11.50 = $11.50
Answer:
x = 5.9
Step-by-step explanation:
Step 1: Write equation
14 = 31.7 - 3x
Step 2: Solve for <em>x</em>
<u>Subtract 31.7 on both sides:</u> -17.7 = -3x
<u>Divide both sides by -3:</u> x = 5.9
Step 3: Check
<em>Plug in x to verify if it's a solution.</em>
14 = 31.7 - 3(5.9)
14 = 31.7 - 17.7
14 = 14
The answer would be 3 + 6i.
1. simplify brackets (-i + 6 - 3 + 7i )
2. gather like terms ( 6 - 3 ) + ( -i + 7i )
3. simplify
So in conclusion your answer would be 3 + 6i.
The sum of the two sides of the triangle must be greater than the third side, so
5<x<41 is the answer
