geometry

if 6 oz of dough are needed to make an 8-in. pizza, how much dough will be needed to make a 16-in. pizza of the same thickness? (compare the areas of the pizza tops)

i don't know what to do

  1. 👍 0
  2. 👎 0
  3. 👁 172
asked by anna
  1. Set up a ratio oz/in. so you have 6/8 to x/16. Then you cross mutiply so you have 16*6=8x. 16*6=96 ,SO 96=8x. Then you divide 96 by 8 to get 12. so you will need 12 oz. of dough

    1. 👍 0
    2. 👎 0
    posted by Jessie
  2. or you could just notice that the numbers are just double and double 6 to=12

    1. 👍 0
    2. 👎 1
    posted by TIM
  3. the answers 24. i looked at the answers cus i thought it was 12 too

    1. 👍 0
    2. 👎 0
    posted by anna
  4. nope. i figured it out. you have to use pi to find the areas of both pizzas and then their ratio is 1:4 so 6*4 = 24

    1. 👍 0
    2. 👎 0
    posted by anna
  5. you do not need pi. It cancels.
    r1 = 4 inches
    r2 = 8 inches
    since thickness is the same:
    volume2 = volume1 (pi r2^2 /pi r1^2)
    volume2 / volume 1 = (8^2/4^2) = 4
    so
    volume2 = volume1 * 4
    mass2 = 6 * 4 = 24

    1. 👍 0
    2. 👎 0
    posted by Damon

Respond to this Question

First Name

Your Response

Similar Questions

  1. Ratios

    This is an easy question but I can't find my notes on the subject. A cookie dough is divided into 3, in a ratio of 1:2:3 by weight. If the heaviest dough is 8oz more than the lightest one, what was the weight of the dough before

    asked by Nikki on May 10, 2017
  2. Math Ratios

    A cookie dough is divided into three, in the ratio of 1:2:3 by weight. If the heaviest dough is 8oz more than the lightest one, what was the weight of the dough before dividing?

    asked by Nikki on April 4, 2017
  3. math

    each student needs 2/5 of a cup of play dough to build a house. How many cups of play dough are needed for 9 students?

    asked by Michael on September 22, 2016
  4. Precalc

    Amy and Kali are selling cookie dough for a school fundraiser. Customers can buy packages of white chocoloate chip cookie dough and packages of gingerbread cookie dough. Amy sold 12 packages of white chocoloate chip cookie dough

    asked by Anonymous on June 23, 2019
  5. English

    1. Make four circles on the dough with a cooking tool. 2. Cut out the circles of the dough. 3. Bake them for 10 minutes on a frying pan/ on an oven. (Are the expressions grammatical?)

    asked by rfvv on April 26, 2012
  6. 8th Grade Algebra

    To make the Chinese dish "dragon's beard noodles," fold a 5 ft. strand of dough in half. Stretch the dough back to its original length so that two thinner strands are formed. Repeat this folding and stretching process over and

    asked by Joy on April 18, 2009
  7. physics

    Child X throws 0.5 kg of Play Dough at Child Y at 0.40 m/s at the same time that Child Y throws 0.8 kg of Play Dough at Child X at 0.20 m/s. The two masses of Play Dough collide and stick. What is the resulting speed and direction

    asked by unknown on October 30, 2012
  8. physics

    a 100g mass of cookie dough hits inelastically with a 300g mass of cookie dough and they stick. the 100 g mass was moving to the right at 40 m/s and the 300g mas was moving to the left at 5 m/s. what is the final velocity of the

    asked by Dee on October 3, 2013
  9. Algebra

    Bakery has bought 250 pounds of muffin dough. They want to make waffles or muffins in half-dozen packs out of it. Half a dozen of muffins requires 1 lb of dough and a pack of waffles uses 3/4 lb of dough. It take bakers 6 minutes

    asked by Anish Panda on March 25, 2016
  10. Algebra

    Bakery has bought 250 pounds of muffin dough. They want to make waffles or muffins in half-dozen packs out of it. Half a dozen of muffins requires 1 lb of dough and a pack of waffles uses 3/4 lb of dough. It take bakers 6 minutes

    asked by Andrew on March 24, 2016

More Similar Questions