The two square roots of 4,900 are +70 and -70 . 70 x 70 = 4,900 (-70) x (-70) = 4,900
810000
five tenths of 70 = 70 x 5/10 which is the same as 70 x 1/2 Then you turn the times to a divide and divide it by the reciprocal of 1/2 which makes 70 / 2 which is 35!
-5 x 14 = -70
210 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 16 factors of 210 are 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, and 210.The factor pairs of 210 are 1 x 210, 2 x 105, 3 x 70, 5 x 42, 6 x 35, 7 x 30, 10 x 21, and 14 x 15.The proper factors of 210 are 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 41, 70, and 105 or,if the definition you are using excludes 1, they are 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 41, 70, and 105.The prime factors of 210 are 2, 3, 5, and 7.The distinct prime factors (listing each prime factor only once) of 210 are also 2, 3, 5, and 7.The prime factorization of 210 is 2 x 3 x 5 x 7.NOTE: There cannot be common factors, a greatest common factor, or a least common multiple because "common" refers to factors or multiples that two or more numbers have in common. 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105 and 210.
Percentage decrease from 70 to 30 is ((70 - 30)/70) x 100 = (40/70) x 100 = 4000/70 = 400/7 = 57.14%
x - 30% of x = 91 → 70% x = 91 → x = 91÷ 70% = 130
21/30 x 100 = 70. Therefore, 21 is 70 percent of 30.
Ah, isn't math a wonderful friend? To find the total square feet in a rectangle, you simply multiply the length by the width. So, for a 30 by 70 rectangle, you would multiply 30 by 70 to get 2,100 square feet. Just imagine all the happy little trees you could fit in that space!
(30/100) X 70 feet = 21 feet.
Yes: 300 x 7 = 2,100 30 x 70 = 2,100
the answer is 42.9 % 30 X 100 = 3000 3000 : 70 = 42.85714286
70 x 30 = 2100 7 x 30 = 210
70' x 30' = 70*30 square feet = 2100 sq feet.
To find the percent that a number, x, is out of another number, y, divide x by y and multiply by 100. So (21/30)*100 = 70, which means that 21 is 70% of 30.
21/30 x 100% = 70%
30 % off of 525 is (100 - 30 = 70) % of 525 remaining: 70 % of 525 = 70/100 x 525 = 367.5