Use the Pythagorean Theorem:
a² + b² = c²
4² + b² = 8.5²
16 + b² = 72.25
b² = 56.25
b = 7.5
The ladder reaches a height of 7.5 ft on the wall
You can easily take 8*10, since that equals 80, then add +2. Put parentheses around 8*10+2, then multiply that by 3. You should arrive at your answer
Answer:
The amount was reduced by 30%
Step-by-step explanation:
To find the percent discount, take the reduction over the original price
99/330
.3
Change the decimal to a percent by multiplying by 100%
.3 * 100%
30%
The amount was reduced by 30%
5.013d + 12.3 = 15.302
5.013d = 15.302 - 12.3
5.013d = 3.002
d = 3.002 / 5.013
d = 0.599 (thats rounded) <==
Answer:
18
Step-by-step explanation:
30x60=1800
1800/100=18
