7×65 7×(60+5)
(7×60) (7×5)
(420)+(35)
The answer is 455
Step-by-step explanation:
Don't make no sense nnnnn
Pro tip: always assign ratios a variable.
So 8x + 7x = 30; 15x=30; x=2
Now plug in x;
8(2)=16 and 7(2)=14
So the pieces are 16 and 14 cm which adds up to 30.
Answer: 2 1/4 hours
Step-by-step explanation:
If Rafael practices 3/4 of an hour each day for three days he will have had 3/4 of an hour practice after day 1, 1 1/2 hours of practice after day 2 and then 2 1/4 hours of practice after day 3.
3 x 3/4 = 9/4
9/4= 2 1/4
