Answer:
The area of the top of the large cake is 254.34 in2 and the small cake is 28.26 in2. The top of the large cake has an area equal to 9 times that of the small cake.
Step-by-step explanation:
Area of a circle is TTr^2 (TT is pi).
Large cake: 3.14x9^2=254.34
Small cake: 3.14x3^2=28.26
254.34/28.26=9
Answer:
Step-by-step explanation:
Find the area of the small cake in terms of π.
A = πr2 Use the formula.
A = π(3)2 Substitute. Use 3 for r.
A = π × 9 Evaluate the power.
Find the area of the top of the large cake in terms of π.
A = πr2 Use the formula.
A = π(9)2 Substitute. Use 9 for r.
A = π × 81 Evaluate the power.
Find how much larger the area of the top of the large cake is compared to the area of the small cake.
81π ÷ 9π = 9
Answer:
100 +3s≥ 160
You must sell as least 20 items
Step-by-step explanation:
You make 100 plus 3 dollars per sale
100 +3s
It must be at least 160
100 +3s≥ 160
Now we need to solve to see how many sales
100 +3s≥ 160
Subtract 100 from each side
100-100 +3s≥ 160-100
3s≥ 60
Divide each side by 3
3s/3≥60/3
s≥20
You must sell as least 20 items