75 percent of the number 140 is 105.
Let the unknown number be x.
Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".
Here, 75% of x is 105
75% of x= 105
75/100 ×x= 105
0.75x=105
x=105/0.75
x= 140
Therefore, 75 percent of the number 140 is 105.
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The boxes weigh 12 pounds and 20 pounds respectfully. We found this by setting up and solving an equation based on the problem's parameters.
Let's assume the lighter box weighs 'x' pounds, this makes the heavier box weigh 'x+8' pounds. According to the problem, the total weight of both boxes that the mail truck picks up from the post office is 32 pounds. So, we can set up the following equation: x + (x+8) = 32. Solving this equation we get 2x = 24, which means x = 12. So, one box weighs 12 pounds and the other box, which is 8 pounds heavier, weighs 20 pounds.
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9514 1404 393
Answer:
Step-by-step explanation:
The cross products related to the proportions shown here are ...
Answer:
Solve the given equation for y to obtain the slope and y-intercept of this equation: -3x + 9y = 18
Add 3x to both sides: 3x - 3x + 9y = 18 + 3x
Simplifying, 9y = 3x + 18
Dividing both sides by 9 to solve for y:
y = (3/9)x + 2 or (after reduction) y = (1/3)x + 2
The slope is 1/3 and the y-int. is (0,2).
Step-by-step explanation:
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