Answer:
333 ft squared
Step-by-step explanation:
18 x 18.5 = 333
If the digits are a, b and c, the number n is 100a+10b+c
Here are the equations:
a number equals fifteen times the sum of its digits:
100a+10b+c = 15(a+b+c)
if its digits are reversed, the resulting number exceeds n by 396:
100a+10b+c+396 = 100c+10b+a
the one’s digit is one larger than the sum of the other two:
a+b+1 = c
Solving it gives you a=1, b=3, c=5, the number is 135.
Answer:
9) a) Nu 280
b) Nu 1120
10) 20%
11) a) Nu 2080
b) Nu 10080
Step-by-step explanation:
9) a) 1400 * .80 = 1120 1120-1400=280
b) 1400*.80 = 1120
10) 900/750=1.20 1.20-1=0.20 0.20*100= 20%
11) a) I = 8000*18*.07 = 10080 10080-8000=2080
b) I = 8000*18*.07 = 10080
320,000 You have to add 5% then multiply by 20
