Answer:
Step-by-step explanation:
Area=πr²
area= π(12)²
area=452.4cm²
Answer:
x=8/9
Step-by-step explanation:
5x+2(x-3)=-2(x-1)
1) Distribute 2 to x and -3:
5x+2x-6=-2(x-1)
2) Distribute -2 to x and -1:
5x+2x-6=-2x+2
3) Combine alike terms:
7x-6=-2x+2
4) Add 2x to both sides:
9x-6=2
5) Add 6 to both sides:
9x=8
6) Divide both sides by 9:
x=8/9
Answer:
a. 12.8 cm b. 3.125
Step-by-step explanation:
To find any scale drawing use a proportion with one unit of values on the top and the other on the bottom. For example 8cm/5km = x/8km. So you would multiply 8 cm and 8 km and then divide by 5 to get 12.8 cm. For the second question plug in 5m in the numerator and solve for its denominator.
34% written in decimal form is .34 (by moving the decimal 2 places left).
.34 written as a fraction is 34/100. Reduce the fraction by dividing numerator and denominator by 2 to get 17/50.
The ratio is 17:50
Answer:
62.5
Step-by-step explanation:
speed = distance / time taken
= 125/2
=62.5miles per hour
