The equation that can be used to find out the total time it will take to William to mow the lawn is (75n) / 100=33.
<h3>What is an equation?</h3>
This is a mathematical expression that represents a situation including a value that is not known.
In this case the best equation would be 75n / 100=33 as this is the only one that includes all the factors:
- 75% out of a 100% that is unknown (n)
- 100 (represents the percentage)
- 33 (total of minutes completing 75%)
<h3>What is the result of this equation?</h3>
- 75n / 100=33
- n/ 100 = 33/75
- n/100 =0.44
- n= 0.44 x 100
- n = 44 minutes
Learn more about equations in: brainly.com/question/10413253
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Answer:
Shopkeepers gain just by weighing is 22.22%
Step-by-step explanation:
Explanation:
Assume that the shopkeeper bought x units of goods i.e. actual weight of goods.
As the balance used to buy goods weighs 10% more, he actually bought x×110100=1.1x weight units i.e. although the shopkeeper paid for x units, he actually bought 1.1x units by weight.
Now he has 1.1x units of goods, but for selling he uses another balance, which actually measures 10% less i.e. 1−0.10=0.9 units for each unit weight of goods sold.
So while selling 1.1x becomes 1.1x0.90=1.2222... units.
Hence, shopkeepers gain just by weighing is 22.22%
1 yard= 3 feet
1 foot= 12 inches
Convert this problem into one like unit of measurement. Use the smallest one. In this case, inches.
So, convert 1 2/3 yards to inches.
1 2/3 = 5/3
5/3 * 3(feet) = 15/3 = 5
There are 5 feet in 1 2/3 yards.
Next, convert the five feet to inches.
5 * 12 = 60
1 2/3 yards represents 60 inches.
Since 64 is greater than 60, you can say that 64 inches is greater than 1 2/3 yards.
The red arrows mean the lines are parallel. Since all angles are equal, the larger triangle is similar to the smaller one. Then corresponding sides have the same ratio
(4x -2)/9 = (3x+2)/12
x(4/9 -3/12) = (2/12) +(2/9)
x = (7/18)/(7/36) = 2 . . . . . . . . . corresponding to the 3rd selection
