0
Still curious? Ask our experts.
Chat with our AI personalities
Judy
Devin
ProfessorAdd your answer:
Earn +20 pts
How many numbers from between 0 or 999 are not divisible by either 5 or 7?
a) first find how many numbers are divisible by 5 and 7 separately add them and subtract that are divisible by both 7 and 5 ie 35.the result subtract from 1000 to get the answer to your first question nos. divisible by 5 . last no. div by 5 is 995 .hence we have 995 = 0 + ( n-1) 5 which gives 200 . last no div by 7 is 994 .hence 994 = 0+ ( n-1) 7 which gives n = 143 . nos div by both 5 and 7 .last no div by 35 is 980. 980 = 0+ (n-1) 35 which gives n= 29 hence there are 200+ 143- 29 = 314 numbers div by 5 or 7 a) not div by 5or 7 = 1000- 314 = 686 b)div by 5 and7 =29 c) div by 5 or 7 = 314 d) div by 5 and not by 7 = 200-29 = 171 so answer is 686 Amit singh
Find the sum of all positive integers not greater than 10000 that are not divisible by 7?
Sum(not div by 7) = Sum(all) - Sum(div by 7) Now the sum of an AP is Sn = n/2 (first + last) where n is the number of terms Sum(All) = 10000/2 (1 + 10000) = 50005000 Sum(div by 7) = (9996/7)/2 (7 + 9996) = 1428/2 (10003) = 7142142 Sum(not div by 7) = Sum(all) - Sum(div by 7) = 50005000 - 7142142 = 42 862 858
Is 7 not a factor of 35?
7 is a factor of 35.
How do you divide 7 into 35?
7/35 7/7=1 35/7=5 7/35=1/5 1/5=0.2
What is the Perimeter of a 4 X 6 square?
This is a trick question. A square by definition has four equal sides, therefore it cannot measure 4 x 6. A geometrical figure having four sides, right angles, and measuring 4 x 6 would be called a rectangle, not a square. And it would have a perimeter of 20. <p></p><p> </p>The definition of a square is that all four sides are equal.<div><br></div><div>Therefore your 4x6 is a rectangle, and not a square.</div><div><br></div><div>Perimeter would therefore be</div><div><br></div><div>4+6+4+6= 20.<div></div><div><br></div><div>Total all four sides of the rectangle. </div></div>
