A leak in a pool causes the height of the water to decrease by 0.25 foot over 2 hours. After the leak is fixed, the height of th
e water is 4.75 feet. The equation 4.75 = x+(-0.25) can be used to find x, the original height of the water in a pool.
What was the original height of the water in the pool in feet?
4.5
There are many theories and measurement for the speed of light. It is believed that light travels at 299,792 km per second. In the earlier day philosopher Aristotle believed that light didn't travel but happens instantaneously. Therefore, for Galileo and his assistant to be only 1km apart, I would have to agree with Aristotle theory of light traveling instantaneously.
First, multiply 4, which is the dollars per hour, by 2, which is 8. Then, multiply four with ten, which is 40. Next, multiply 4 with 3, which is 12, and add two zeros on the back, which is 1,200. Finally, add them all together for a total of $1,248.00, or 1,248 dollars.
Let x be the larger number and y be the smaller number. Using the given info, we get x = 4y - 2 We also know that x + y = 18 Substitute x = 4y -2 into x + y = 18 (4y -2) +y = 18 5y - 2 = 18 5y = 20 y = 4 Enter this value into x = 4y - 2 x = 4(4) - 2 x = 14 The larger number is 14 and the smaller one is 4.
Convert 6.5% to a number that can be used: 6.5%/100 = 0.06
Find out how much you are going to pay due to tax by multiplying the decimal by the total of the meal: 0.06 × $7.50 = $0.49
Now that we know that the tax will make you pay 49 cents more, we can add up $0.49 and the meal to see how much we are going to pay for the whole thing: $7.50 + $0.49 = $7.99