Answer:
Therefore the distance across the patch of swamp water is 50 ft
Step-by-step explanation:
Given:
VW = 100 ft
WX = 60 ft
XZ = 30 ft
To Find:
ZY = l = ?
Solution:
In Δ VWX and Δ YZX
∠W ≅ ∠ Z …………..{measure of each angle is 90° given}
∠VXW ≅ ∠YXZ ..............{vertically opposite angles are equal}
Δ ABC ~ Δ DEC ….{Angle-Angle Similarity test}
If two triangles are similar then their sides are in proportion.
On substituting the given values we get
Therefore the distance across the patch of swamp water is 50 ft
Answer:\
x ≥ 6
Step-by-step explanation:\
4x -30≥ - 3x + 12
add 30 to bot size
4x - 30 + 30 ≥ -3x + 12 + 30
simplify
4x ≥ -3x + 42
add 3x to bot sides
4x +3x ≥ -3x+42+3x
simplify
7x ≥ 42
divide bot sides by 7
7x/7 ≥ 42/7
simplify
x ≥ 6
Answer: 1 hour
Step-by-step explanation:
1st trip = 4mph
12 mi / 4 mi
12 mi = 3 hrs
2nd trip = 6 mph
12 mi / 6 mi
12 mi = 2 hrs
3hrs - 2 hrs = 1 hr