Answer:
Given: Population of ducks in lake, last year is 60.
Also, the population of ducks this year decreased by 1/4 th over the last year.
So, the population of ducks this year is = 60*(1-1/4)
= 60*(3/4)
= 45
Therefore, the population of ducks this year is 45 ducks.
Answer:
ST = 4
Step-by-step explanation:
A segment joining the midpoints of 2 sides of a triangle is half the length of the third side.
ST =
PQ substitute values
- 32 + 9x =
(- 5x + 28) ← multiply both sides by 2 to clear the fraction
- 64 + 18x = - 5x + 28 (add 5x to both sides )
- 64 + 23x = 28 ( add 64 to both sides )
23x = 92 ( divide both sides by 23 )
x = 4
Then
ST = - 32 + 9x = - 32 + 9(4) = - 32 + 36 = 4
Answer:
219
Step-by-step explanation:
Just take 232 minus 13, you get 219
Answer:
is the answer
Step-by-step explanation:
7(5x+9)=12+−1(x+9)(Distribute the Negative Sign)
7(5x+9)=12+−x+−9
(7)(5x)+(7)(9)=12+−x+−9(Distribute)
35x+63=12+−x+−9
35x+63=(−x)+(12+−9)(Combine Like Terms)
35x+63=−x+3
Add x to both sides.
35x+63+x=−x+3+x
36x+63=3
subtract 63 from both sides.
36x+63−63=3−63
36x=−60
Divide both sides by 36.

-5/3 is the answer.
ik this doesnt make any sense but hope this helps
Answer:
27
Step-by-step explanation:
90-63