What is the sum of the first 5 terms in the sequence?

For an A.P. with first term as a and common difference d , the sum up to n terms are given by ;

S(n) = (n/2)[2a + (n-1)d] . Here, n = 5 and S(n) = 60. Therefore,

60 = (5/2)[2a + 4d] = 5[a + 2d] or

a+2d = 12 , which is one equation for 2 unknowns, so let us take one of them, say a, as free variable, then 2d = 12 - a . Now, for different values of a, we get different values of d, thus giving out infinite different A.Ps. That is not an unique A.P. but many A.Ps.are possible. For instant, let a = 0 , then d = 6 and the A.P. with this data is : 0, 6, 12, 18, 24, …. .. . Similarly for a different value of a , you will be getting another A.P., different from the above one and so on .

answer: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

step-by-step explanation: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.