Answer:
7/2
Step-by-step explanation:
1/8 + 1/4, you must change the denominator so that they are the same.
So that would mean 1/8+ 1/8, but since the denominator for the second one was 1/4 we must multiply the top by 2. So it becomes 1/8+2/8. You then change the denominator for the rest of them like this and it becomes 1/8+2/8+3/8+4/8+6/8+7/8 which simplified equals 7/2.
Answer:
49 x^4 - 4 = 0
(7 x^2 - 2) (7 x^2 + 2) = 0
Only the first term will have real roots
7 x^2 = 2
x = (2 / 7)^1/2 = .535 or -.535
Answer:
725112
Step-by-step explanation:
Just multiply the 2 numbers please give brainliest
I did The maTh and iTs 1,385.5.
If 2/5 of the population are boys, then that means 3/5 of the population is girls
The proportion for girls is 3/5
Total students, divide total boys by fraction of boys:
450 / 2/5 = 1125 total students.
Number of girls = 1125 - 450 = 675 girls.