Answer:
$300 was the regular price of the sofa.
Step-by-step explanation:
If $219 is 27% less than the regular price, then it represents 73% of the regular price.
Regular price = r.
r/1 x 73/100 = $219. Reverse this to find that $219/1 divided by 73/100 = r.
To divide fractions, reverse the second fraction and MULTIPLY:
$219/1 x 100/73 = 21900/73 = 300.
Answer:
16 square meters
Step-by-step explanation:
I think your question is missed of key information, allow me to add in and hope it will fit the original one. Please have a look at the attached photo.
My answer:
As we know the surface area of a square pyramid is:
SA = 
+ (2 × a × s), where a is the base length and s is the slant height.
Given information in the photo,
The base area of the square pyramid: = 
= 4 square meters
The slant height is 3 meter, so the area of the 4 sides: (2 × a × s) = 2*2*3 = 12
=> the surface area of the square pyramid is: The base area + the area of the 4 sides
= 4 + 12
= 16 square meters
If you subtract 25 from 12 you will get 13 cents. So you will get back 1 dime and 3 pennies.
I hope this helped you :)
Answer:
How many hours per week do you watch television?
Step-by-step explanation:
In order to conduct a proper survey about a specific topic, it is necessary to be direct and clear. In the case of time spent by students watching TV, asking this question would be effective enought to collect necessary data so as to provide useful and good quality information, which will result in a sucessful survey.
The surface area of a sphere = 4πr²
4πr²=100π
Dividing both sides by 4π,
r² = 100π÷4π = 25
r² = 25
Taking the square root on both sides,
r = 5 centimeters
