The number is 63, so the quotient is 2.
Two digit numbers divisible by 21:
21, 42, 63, 84
21: 2-1 = 1 * 3.5 = 3.5
3.5*2*1 = 7 but 7 does not equal 21
42: 4-2 = 2 * 3.5 = 7
3.5*4*2 = 28 does not equal 42
63: 6-3 = 3*3.5 = 13.5
3.5*6*3 = 63 :)
Check:
21(6-3)=21(3)= 63 :)
3.5(6)(3) = 21(3) = 63 :)
63: 6/3 = 2
Answer:
a = ±sqrt(3)
Step-by-step explanation:
a×a×a=a+a+a
Simplifying each side
a^3 = 3a
Divide each side by a
a^3 /a = 3a/a
a^2 = 3
Take the square root of each side
sqrt(a^2) = ±sqrt(3)
a = ±sqrt(3)
Answer: x=2
Step-by-step explanation: add 4 to both sides of the equation.
The answer would be 3/9. it would not be 3/18 because you do not add together the denominators (bottom numbers), only the numerators (top number). think of it as a pie. if you have a lie with 9 slices, and you add 1 slice plus 2 slices. it wouldn’t become 1.5 slices, it would be 3 slices. hope this helps.
Answer:
x < -2; x > 1; x ≠ -7
Step-by-step explanation:
The first number that will not work in this equation is the number that would make the denominator 0.
So -7 is the only number that would make the denominator 0.
The other numbers that won't work are numbers that make the numerator negative. If x equals a number that would make one part of the numerator negative while the other part is positive, then the answer would be < 0.
x = - 2, - 1, 0 and 1 are all numbers that won't work because they will all be <0.
(-2 + 3)(-2 - 2) = ( 1 )( -4 ) = -4 which means the answer would be less than 0.
When x equals 2, the numerator will be 0. Once x > 2, the equation would be true again because no matter what, the numerator will be positive.
So, X cannot equal -7, -2, -1, 0 or 1.
I would use the answer x < -2; x > 1; x ≠ -7