<em><u>Question:</u></em>
4x + 2y = 0
- 4x – 9y= - 28
Solve each system by elimination
<em><u>Answer:</u></em>
The solution is x = -2 and y = 4
<em><u>Solution:</u></em>
<em><u>Given system of equations are:</u></em>
4x + 2y = 0 ------ eqn 1
-4x – 9y = - 28 ------- eqn 2
We have to solve the system of equations by elimination method
Add eqn 1 and eqn 2
4x + 2y -4x -9y = 0 - 28
0 + 2y - 9y = -28
-7y = -28
Divide both sides by -7
y = 4
<em><u>Substitute y = 4 in eqn 1</u></em>
4x + 2(4) = 0
4x + 8 = 0
4x = -8
Divide both sides by 4
x = -2
Thus the solution is x = -2 and y = 4
There are 1,61 kilometers in a mile or more correctly 1,60934 kilometers in a mile.
<span>But first, a short history.... Both kilometers and miles are units of measurement. They are used to measure distance. Miles are part of the imperial measurement system and kilometers are part of the metric measurement system. </span>
To calculate how many miles a person will run during a 10-kilometer race, you need to divide 10 kilometers by 1,61 miles (1,60934 rounded up to two digits).
Therefore your equation is as follows:
10÷1,61 or 10 000 meters ÷ 1 610 metres
1000 meters is equal to 1 kilometer.
The answer = 6, 21 miles.
Therefore, a person who runs 10 kilometers will run 6,21 miles
Answer:
$82.5
Step-by-step explanation:
40%-33
10%-8.25
100%-82.5
6x-5=3x+4
+5 +5
6x=3x+9
-3x -3x
3x=9
(divide both sides by 3)
x=3
Answer:
223 hours
Step-by-step explanation:
Total hours worked by Lee = sum of all the hours worked
That’s
82 + 61 + 7 + 73 = 223 hours
Therefore, Lee worked 223 hours as manager for the local Pizza Hut
