Because 1/2 = 3/6
therefore you have to multiply 1/6 by 3 to achieve that.
Jackson's credit card charges 15% interest.
His dad's credit card charges 5% interest.
NOw, they both soend 1000 dollars. Let's find out the difference between their interests.
Jackson => 1000 * .15 = 150 dollars
Dad of Jackson => 1000 * .05 = 50 dollars.
THus, their difference is about 100 dollars
Answer:
1. 25
2. 7
Step-by-step explanation:
Let the variables be denoted as "x".
1. If 5 times "x" is increased by 50, the result is the same as when 200 is decreased by "x".
Set the equation:
5x + 50 = 200 - x
Isolate the x. Note the equal sign, what you do to one side, you do to the other. First, add x and subtract 50 from both sides:
5x (+ x) + 50 (-50) = 200 (-50) - x (+x)
5x + x = 200 - 50
6x = 150
Next, divide 6 from both sides of the equation:
(6x)/6 = (150)/6
x = 150/6 = 25
25 is your number.
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2. If 50 is decreased by 4 times "x", the result is 15 more than "x".
Set the equation:
50 - 4x = 15 + x
Isolate the x. Note the equal sign, what you do to one side, you do to the other. First, subtract x and subtract 50 from both sides:
50 (-50) - 4x (-x) = 15 (-50) + x (-x)
-4x - x = 15 - 50
-5x = -35
Divide -5 from both sides of the equation:
(-5x)/-5 = (-35)/-5
x = -35/-5 = 7
x = 7
7 is your number.
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in this 4x must equal 140 and if you divide both sides by 4 you get 35 so you are correct