Answer:
oink
Step-by-step explanation:twice a number"
→
2
n
"twice a number and k"
→
2
n
+
k
"7 less than twice a number and k"
→
(
2
h
+
k
)
−
7
Greatest common factor of 18 and 24 is 6.
Hi there!

The following trapezoidal theorem states that:
Middle segment = average of top and bottom side
Thus:
M = 1/2(b1 + b2)
21 - x = 1/2(17 + 11)
Solve:
21 - x = 1/2(28)
21 - x = 14
Subtract 21 from both sides:
-x = 14 - 21
-x = -7
Multiply both sides by -1:
x = 7
Answer:
The percentage decrease in the depth is 45%
Step-by-step explanation:
January, lake depth = 1086 feet
august, lake depth = 597.3 feet
The decrease in depth = 1086 - 597.3
= 488.7 feet
Percentage decrease = decrease over January lake depth multiply by 100%
% decrease = (488.7/1086)*100%
=0.45*100%
= 45%