Answer:
2.5 miles
Step-by-step explanation:
22.50-6=16.50
16.50÷3=5.5
Answer:
-1
Step-by-step explanation:
the coordinates are (1,6)(4,3)
lets say that
x1=1
x2=4
y1=6
y2=3
slope formula: (y2-y1)/(x2-x1)
= (3-6)/(4-1)
= -3/3
= -1
sin x = cos 54 = sin (90-54) = sin 46
Hence x = 46 deg
Same technique. Sin 21 = cos (5x+9) = sin (90-5x-9)
81-5x = 21
Or 5x = 60
Or x = 12 deg
hope it helps
2x -10 = 30
add ten to both sides
2x = 40
divide by two
x = 20
Answer: Maggie used 1 1/2 hours
Elizabeth used: 3 × 1 1/2 = 4 1/2 hours
Step-by-step explanation:
Let the time used by Maggie be x
Since it It takes Elizabeth three times as long as Maggie to clean her room. Elizabeth will use: = 3 × x = 3x
Therefore, x + 3x = 6
4x = 6
x = 6/4 = 1.5 hours
Maggie used 1 1/2 hours
Elizabeth used: 3 × 1 1/2 = 4 1/2 hours