Answer:
90$ I'm pretty sure
Step-by-step explanation:
25% of 120=30$, 120-30=90$
To find the answer, you must first convert the sales percentage to a decimal by moving the decimal left two places.
20%=0.20
Then, multiply the total cost by the decimal.
$15.98(0.20)=$3.19
This gives us the amount of the discount. To find the remaining cost, we subtract that number from the original cost to get the answer.
$15.98−$3.19=$12.79
An example of explaining percents I found to help explain it better then I probably could do
Answer:
≈ 397 m
Step-by-step explanation:
Using Pythagoras' identity on the right triangle
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.
Let h represent the height of the balloon above ground, then
h² + 50² = 400², that is
h² + 2500 = 160000 ( subtract 2500 from both sides )
h² = 157500 ( take the square root of both sides )
h ≈ 397 m ( to the nearest metre )
The answer is b the two equations are equal to each other
