System of equations + arithmetic progression - math problems

Number of problems found: 20

  • Harry
    Harry Thomson bought a large land in the shape of a rectangle with a circumference of 90 meters. He divided it into three rectangular plots. The shorter side has all three plots of equal length, their longer sides are three consecutive natural numbers. Fi
  • The sides
    The sides of a right triangle form an arithmetic sequence. The hypotenuse is 24 cm long. Determine the remaining sides of the triangle.
  • Sequences AP + GP
    The three numbers that make up the arithmetic sequence have the sum of 30. If we subtract from the first 5, from the second 4 and keep the third, we get the geometric sequence. Find AP and GP members.
  • Find d 2
    Find d in an A. P. whose 5th term is 18 and 39th term is 120.
  • The ages
    The ages of the four sons make an arithmetic sequence, the sum of which is the age of the father today. In three years, the father's age will be the sum of the ages of the three eldest sons, and in the next two years and three months, the father's age wil
  • Rectangular triangle
    The lengths of the rectangular triangle sides with a longer leg of 12 cm form an arithmetic sequence. What is the area of the triangle?
  • AP RT triangle
    The length of the sides of a right triangle forms an arithmetic progression, and the longer leg is 24 cm long. What are the perimeter and area?
  • Odd numbers
    The sum of four consecutive odd numbers is 1048. Find those numbers.
  • Arithmetic progression
    In some AP applies: 5a2 + 7a5 = 90 s3 = 12 Find the first member a =? and difference d = ?
  • Have solution
    The sum of four consecutive even numbers is 92. Determine these numbers.
  • Angle in RT
    Determine the size of the smallest internal angle of a right triangle whose sides constitutes sizes consecutive members of arithmetic progressions.
  • Angle
    Determine the size of the smallest internal angle of a right triangle which angles forming the successive members of the arithmetic sequence.
  • Chocholate pyramid
    How many chocolates are in the third shelf when at the 8th shelf are 41 chocolates in any other shelf is 7 chocolates more the previous shelf.
  • AP 6
    Calculate the first five items of an arithmetic sequence if it is given: a2 – a3 + a5 = 20 a1 + a6 = 38
  • Three ints
    The sum of three consecutive integers is 2016. What numbers are they?
  • AP - basics
    Determine first member and differentiate of the the following sequence: a3-a5=24 a4-2a5=61
  • Geometric sequence
    In the geometric sequence is a4 = 20 a9 = -160. Calculate the first member a1 and quotient q.
  • Angles in a triangle
    The angles of the triangle ABC make an arithmetic sequence with the largest angle γ=83°. What sizes have other angles in a triangle?
  • Geometric sequence 3
    In geometric sequence is a8 = 312500; a11= 39062500; sn=1953124. Calculate the first item a1, quotient q, and n - number of members by their sum s_n.
  • Sequence
    In the arithmetic sequence is given: Sn=2304, d=2, an=95 Calculate a1 and n.

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