165
X= ———
14
1 + 7/30 (4x) = 20
A perfect cube<span> is a whole number which is the </span>cube<span> of another whole number. </span>In order to check whether a number is a perfect cube or not, we find its prime factors and group together triplets of the prime factors. If no<span> factor is left out then the number is a perfect cube.</span>
I think this is the answer
Answer:
a. 21: 45
d. 63: 135
Step-by-step explanation:
Ratio or Relationship of two quantities is the result of comparing two quantities.
Such a comparison could be indicated as a reason, in four different ways, in this way:
1)a: b
2)a ÷ b
3)a/b
d)The reason for a is a b.
Equivalent ratios can be used to show the same relationship between two quantities. Remember that the word "equivalent" means the same.
Problem development
We observe what are the equivalent relationships 7:15 and conclude that they are the following:
a.To find the equivalent ratio, we divide the numerator and denominator by the same number , In this case we divide by 3:
21: 45 = 21/45 = 21÷3 /45÷3 = 7/15
d.To find the equivalent ratio, we divide the numerator and denominator by the same number , In this case we divide by 9:
63: 135= 63/135 = 63÷9 /135÷9= 7/15
Tanong mo sa ate mo baka alam nya
