Answer:
x=6
Step-by-step explanation:
81^x=27^(x+2)
3^4x=3^3(x+2)
4x=3(x+2)
4x=3x+6
x=6
5+6+4=15 hours
You worked for 15 hours in all last week.
The equation is 3(7-x)=5 and the answer is
x= 16/3
Answer:
14. -53/89
15. 2 29/30
Step-by-step explanation:
Sum of
18/5+(-71/5)
=18/5-71/5
= 18-71/5
= -53/5
Difference between 18/5 and -71/5
=18/5-(-71/5)
=18/5+71/5
=18+71 /5
=89/5
Sum divided by difference
-53/5÷89/5
= -53/5×5/89
= -53/89
15.
1/2+1/3+1/5+x=4
15+10+6/30+x=4
31/30+x=4
31/30-4=x
31-120/30=x
89/30=x
2 29/30=x
Answer:
First space = 10
second = 10
third = 8
fourth = 50
fifth = 40
sixth = 90
Step-by-step explanation:
To find the area of the larger rectangle, all we're doing is breaking it up into two different ones. One has the area of 5 * 10, and the other has an area of
5 * 8. Simplifying, we get
50 + 40 = 90.
