15 quarters= $3.75
21 nickels =$1.05
______________
36 coins = $4.80
8 out of the 12 tiles are blue, right? The blue tiles are 8/12 of the whole mosaic. Divide the top and bottom by 4 to get 2/3
The numbers are: n, (n+2) and (n+4);
we can suggest this inequation:
84<n+(n+2)+(n+4)<96
Now, we solve this inequation:
84<n+(n+2)+(n+4)<96
84<3n+6<96
1)
3n+6>84
3n+6-6>84-6
3n>78
3n/3>78/3
n>26
2)
3n+6<96
3n+6-6<96-6
3n<90
3n/3<90/3
n<30
The solution is:
26<n<30
Then: n=28
The numbers will be: 28,30 and 32.
Answer:
(-4,5)
Step-by-step explanation:
90 degree rotation = (-y,x)
Answer:
1:4
Step-by-step explanation:
1 would be the teachers
times 4 would be the students
