No those two fractions are not proportional.
25 times 20 = 500
70 times 8 = 560
500 and 560 are not equal so therefore the fractions are not proportional. Hope this helps!
15/7 x 5 and 2/5 x 7
75/35 - 14/35 = 61/35
Answer:
2
Step-by-step explanation:
I know this because they both can go into 2 easily
<span>
The formula is </span>
<span>in the set.
This set {1,2,3} has 3 elements, so the number of subsets is gotten by
substituting 3 for the number of elements in the set:
2number of elements in the set = </span>
= 2x2x2 = 8. So there are 8 subsets. They are:
1. { } or ∅, the empty set, sometimes called the "null" set.
2. {1}
3. {2}
4. {3}
5. {1,2}
6. {1,3}
7. {2,3}
8. {1,2,3}.
(1/4)^-2 - (5^0 x 2) x 1^-1 =
(4/1)^2 - (1 x 2) x 1 = 16-2 = 14
If you raise something to the power of -2, swap numerator and denominator and remove the minus.
So (1/4)^-2 = 4^2 = 16
Also 1^-1 is just 1, not -1.
