84 + x + 59 x + 51 =180
2x + 194 = 180
2x + 194 - 194 = 180 - 194 (subtract both sides by 194)
2x = -14
2x/2 = -14/2 (divide both sides by 2)
x = -7
Answer:
(8x + 100) litres
Step-by-step explanation:
According to the question,
- Given, In a village there are 8 water tanks to collect rainwater. On a particular day, x litres of rainwater is collected per tank. If 100 litres of water was already there in one of the tanks.
Therefore,
Number of water tanks = 8
Rainwater collected by each tank = x litres
∴ Rainwater collected by 8 tanks = 8x litres
But, 100 litres of water was already there in one of the tanks.
- So, the amount of water in the tanks = (8x + 100) litres
A rational number is any number that can represented as a fraction of two integers (when the denominator isn't 0). As decimals, rational numbers can be either terminating or repeating.
All integers are rational numbers because they can be expressed as x/1.
An example of a rational number that isn't an integer is 2/3.
Answer:
120 dollars ($120)
Step-by-step explanation:
(x = original price)
(0.8 is from 0.2 (20 percent) being discounted, meaning 96 is 80% {0.8} of the original price)
x × 0.8 = 96
÷ 0.8 ÷0.8
x = 120
check: 120 × 0.2 = 24
(20 percent of 120 is 24)
120 - 24 = 96
So, the original price was 120 dollars
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remember: percentage can be found by multiplying by 0.percentage
for example, 10% of 100 = 100 × 0.10 = 10
also written as: 100 × 0.1 = 10
Try 116, you add up all the numbers and subtract by 180.