Mark wants to order a pizza. which is the better deal? explain.

donnies's pizza palace. 1st pizza: diameter(in.) 12 cost ($) 10

2nd pizza: diameter(in.) 18 cost($) 20

Question:

Mark wants to order a pizza. Complete the explanation for which is the better deal. Round your answer to the nearest cent. Use 3.14 for π.

Donnie's Pizza Palace

Diameter (in.)   14  22

Cost ($)1020

Answer/Step-by-step explanation:

Find the area of the 14-in pizza.

A=πr²

 Use the formula.

A=π(7)²

 Substitute. Use 7 for r.

A≈3.14 × 7²

 Substitute. Use 3.14 for π.

A≈3.14 × 49Evaluate the power.

A≈153.86Multiply.

The area of the 14-in pizza is about 153.86 in²

Find the area of the 22-in pizza.

A=πr²  

 Use the formula.

A=π(11)²  

 Substitute. Use 11 for r.

A≈3.14 × 11  

 Substitute. Use 3.14 for π.

A≈3.14 × 121            Evaluate the power.

A≈379.94           Multiply.

The area of the 22-in pizza is about 379.94 in²  .

Convert the cost from dollars to cents for each pizza. There are 100 cents in a dollar.

10 × 100=1,000

20 × 100=2,000

The 14-in pizza costs 1,000¢.

The 22-in pizza costs 2,000¢.

Find the cost per square inch of each pizza. Divide the cost (cents) by the area of each pizza.

1,000 ÷ 153.86≈6

2,000 ÷ 379.94≈5

The 14-inch pizza costs about 6¢ per square inch.

The 22-inch pizza costs about 5¢ per square inch.

The 22-inch pizza is a better deal.

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)