Geometry

posted by .

The sum of the diameters of two circles is 28 inches. One circle has a diameter that is 8 inches longer than the diameter of the other. What are the diameters of the two circles?

  • Geometry -

    x+d=28
    x=d-8

    try it from there do you know how to do system of equailets? think of x as one of your diameters and d as the other.
    plug in the second equation to the top one lik this:
    (d-8)+d=28 then find x and check it by plugging in the number. hope this helps (:

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. diameter

    if the sum of the diameters of two circles is 28 inches one circle has a diameter that is 8 inches longer than the diameter of the other what are the diameters of the two circles
  2. math

    the center of three congruent small circles are collinear, and their diameters form the diameter of the large circle, shown, whose area is 81 pi units. what is the circumference of one of the smaller circles?
  3. Geometry - Circles and tangents

    Two circles of radius 1 are externally tangent at Q . Let PQ and QR be diameters of the two circles. From P a tangent is drawn to the circle with diameter QR , and from R a parallel tangent is drawn to the circle with diameter PQ . …
  4. Statistics

    The distribution of a sample of the outside diameters of PVC gas pipes approximates a symmetrical, bell-shaped distribution. The arithmetic mean is 11.0 inches, and the standard deviation is 2.0 inches. About 68 percent of the outside …
  5. geometry

    The sum of the diameter of 2 circles is 28". Once circle has a diameter that is 8" longer. What are the diameters of each circle?
  6. math

    The lengths of the diameters of two concentric circles are 6 and 8. What is the distance between the circles?
  7. GEOMETRY

    Two circles with radii a and b touch each other externally . Let c be the radius of a circle which touches these two circles as well as their common tangent to the two circles . Then relate a,b and c through an equation
  8. math

    Two circles touch each other. One of the circles has a diameter of 26 cm and the other circle has a diameter of 12 cm. Write down (a) the least distance between the centres of the two circles, ....................................................... …
  9. geometry

    Two circles touch each other. One of the circles has a diameter of 26 cm and the other circle has a diameter of 12 cm. Write down (a) the least distance between the centres of the two circles, (b) the greatest distance between the …
  10. Geometry

    Two circles touch each other. One of the circles has a diameter of 26 cm and the other circle has a diameter of 12 cm. Write down (a) the least distance between the centres of the two circles, (b) the greatest distance between the …

More Similar Questions