Answer:
5n
Step-by-step explanation:
Think about it:
If Tommy has 4 friends (n = 4), then he will have to give 5 pencils to each person. The total number of pencils is 5 * n or 5 * 4 = 20.
Similarly, if Tommy has 0 friends (I can relate), then he will have to give 5 pencils to each of his imaginary friends. The total number of pencils he has to give out to his real friends is 5 * n or 5 * 0 = 0.
Answer: it is better to buy the 24 slices
Step-by-step explanation: divide the price by the slices to get the price per slice. the 24 slices are 0.14 cents per slice
Answer:
7 9. If you have any fractions, get rid of those first by multiplying ALL ... to model and solve 3n 6 15. Then solve the equation. 10. 13 x = 32 + 5 x 3.
Step-by-step explanation:
Answer:
26. 16
27. 1
28. 49
29. 169
30. 256
Step-by-step explanation:
26. (b/2)² = (-8/2)² = 16
27. (b/2)² = (-2/2)² = 1
28. (b/2)² = (-14/2)² = 49
29. (b/2)² = (26/2)² = 169
30. (b/2)² = (-32/2)² = 256
We know that
l² = r² + h²
l² = (10.5)² + (36)²
l² = 110.25 + 1296
l² = 1406.5
l = √(1406.5)
l = 37.5 cm
Now,
CSA of cone = πrl
=> 22/7 × 10.5 × 37.5
=> 22 × 1.5 × 37.5
=> 1237.5 cm²
Area of 20 caps = 20 × 1237.5
=> 24750 cm²
