Answer:
z= 50
Step-by-step explanation:
The equation 27/90=15/z can be written as the following if we simplify a little:
3/10=15/z.
remember 27=3*9 and 90=9*10, hence 27/90=3/10
Now lets multiply both sides by variable 'z'.
we have 3/10 * z= 15/z * z
3/10 z=15
Now lets multiply by 10/3
3/10 * z * 10/3 = 15*10/3
z= 50
Answer:
( 4.5 , 5.25 )
Step-by-step explanation:
The square of a whole number n lies between 80 and 150, so n lies between √80 and √150.

n is a whole number and lies between 8.9 and 12.2, so n can be 9, 10, 11, or 12.
The possible values for n are 9, 10, 11, and 12.
Answer:
8. 43
9. 90
10. 38
11. 100
Step-by-step explanation:
8.
93 + (x + 44) = 180
137 + x = 180
x = 43
9.
(x + 20) + (x - 20) = 180
2x = 180
x = 90
10.
3x + (2x - 10) = 180
5x - 10 = 180
5x = 190
x = 38
11.
70 = x - 30
x = 100
For the first one 124 divided by 4 is 31 leaving 3 flowers left over.