math***1questions***

posted by .

1.B

New flowers are being planted in acurcular flower bed with a 14-foot dimeter.if each flower requires 1 square foot of space,about how many flowers can be planted

A.308 flowers
B.154 flowers
C.77 flowers
D.66 flowers

  • math***1questions*** -

    Right.

  • math***1questions*** -

    I would agree - B.
    The surface area of a circular flower bed is is pi × r2.That calculates to 153.938 square ft. Rounded to 154. (B).

  • math***1questions*** -

    pi * 7^2 = 154

  • Not so fast ..... -

    Since each flower needs 1 square foot, the flowers planted along the circumference will not have a complete square foot.
    To illustrate, take a grid paper, and draw a circle with radius 7.
    we will need x^2 + y^2 = 49

    you only have to look at 1/4 of the circle and look at the number of entire squares in that quarter circle.

    The row on top of the radius can hold only 6 flowers,
    so will the 2nd and 3rd row.
    But the 4th row can only have 5 squares, or 5 flowers
    the 5th row, 4 flowers
    the 6th row 3 flowers, but
    the 7th row cannot contain any flowers
    so the quarter circle can hold 30 flowers
    for a total of 120 flowers.

  • math - back to speed -

    Reiny is, of course, correct, but given the choice of answers, I went with the assumption that they were just looking for knowledge of the area of the circle.

    And besides, who said that the flower areas were of any particular shape? Nothing says that the plants around the edge can't be in squashy areas!

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    In a flower box there are nine red flowers and six white flowers. There are three times as many yellow flowers as white ones. How many flowers are there in all?
  2. Math

    In a flower box there are nine red flowers and six white flowers. There are three times as many yellow flowers as white ones. How many flowers are there in all?
  3. Math

    In a flower box there are nine red flowers and six white flowers.there are three times as many yellow flowers as white ones.how many flowers are there in all?
  4. Geo math

    Some flowers are being planted in a circular flower bed with a 10-foot diameter. If each flower requires 5 square feet of space, about how many flowers can be planted?
  5. Science

    A scientist is studying a plant species in which the flower color genes are codominant. The scientist crosses a plant with red flowers and a plant with white flowers. The offspring will most likely have A. red flowers B. white flowers …
  6. math

    A flower bed has 26 rows of flowers and each row has 8 flowers. one section of the flower bed contains red flower . There are 8 rows of red flowers. the rest of the flower bed is white flowers . how many white flowers are there ,.?
  7. Math

    Jenny was planting flowers for her garden. She had to plant 4 rose flowers for every jasmine flower she planted. If she plants 100 flowers in all, how many will be jasmine flowers?
  8. math

    Cherish planted 12 flowers. She put the same number of flowers in each row. Draw a picture to show how she planted her flowers. Write an addition sentence to match your problem
  9. Biology

    Two purple flowers (Bb) are bred with each other in the same garden. What are the odds that red (BB) and blue (bb) flowers will occur in the second generation?
  10. Science

    A scientist is studying a plant species in which the flower color genes are codiminant. The scientists crosses a plant with red flowers. The offspring will most likely have A. Red flowers B. White flowers C. Pink flowers D. Red flowers …

More Similar Questions