3yds of fabric costs $7.47
1yd of fabric costs $2.49
3yd+2yd=5yd
5yd*$2.49=$12.45
4x+12=16
4x=4
x=1
or
-(4x+12)=16
-4x-12=16
-4x=28
x=-7
answer Choice C is correct
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:
a bird is located 38 feet
51
To find the cost per square foot of A you take $450/720ft to get $0.63 per foot and then for B oyu take $525/768ft to get $0.68 per foot so A is cheaper than B