X = velocity of plane
y = velocity of wind
x - y = 1680/5 = 336 mph .....(1) [ plane flying against the wind]
&
x + y = 1680/4 = 420 mph....(2) [ plane flying with the wind]
Adding (1) and (2) to eliminate y gives
2x = 756
x = 378 mph is the speed of the plane with no wind.
Answer:
32
Step-by-step explanation:
25% is the same as 1/4
8 times 4 is 32 so 8 is 25% of 32
Universe exploded into existence
Answer:
a)12
b)1297.8( not sure for this)
c)77
d)1989
Step-by-step explanation:
12÷3+(4×2)
12÷3+8
4+8
12.
309×152÷(12×3)
309×152÷36
309×4.2
1297.8.
1988-1911
77
2021-(16×2)
2021-32
1989
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