Answer:
Length = 175
Width = 125
Step-by-step explanation:
P=2(L+W)
600ft=2(L+W)
300=L+W
300=2W-75ft+W
375=3W
125=W
L=2W-75
L=2(125)-75
L=250-75
L=175
Answer: P = 1/2q-r
Step-by-step explanation:
2p + 2r = q
2p = q - 2r
p = 1/2q - r
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7r+8p-(5-rp-rp) where r=3 and p=4
plug in 3 and 4 for r and p where it says in the equation
7(3)+8(4)-(5-(3)(4)-(3)(4))
multiply
21+32-(5-12-12)
21+32-(-19)
two negatives make a positive
21+32+19
=72
Answer:
120 miles
Step-by-step explanation:
Formulate equations.
Distance = rate * time.
D1 = distance from home to airport
D2 = distance from airport to off
D1 + D2 = 150
30 x t1 + 60 x t2 = 150
Divide through by 30
t1 + 2t2 = 5 ----- equation 1
Entire trip took 3 hours
t1 + t2 = 3 -------------------- equation 2
Solve equation 1 and 2 and you get
t1 = 1 hour
t2 = 2 hour
D2 = t2 x speed = 2 x 60
= 120 miles.
Answer:
2 2/3 hours
Step-by-step explanation:
1/4 + 2/3 + 1 3/4 common denominator is 12
3/12 + 8/12 + 21/12 = 32/12 = 2 8/12 = 2 2/3 hours
