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Decimal Equations
100
x = 3 - 9
x = -6
100
2p + 1 = 21
p = 10
100
2x = x + 5
x = 5
100
Michael travels 315 miles in 7.1 hours. What is his average speed to the nearest hundredth?
44.37 mph
100
2.1x = 4.2
x = 2
200
3 + g = -17
g = -20
200
7p - 9 = -30
p = -3
200
x + 1 = 3x - 5
x = 3
200
Terry takes 3.9 hours to study for her math test. How many minutes is she studying?
234 minutes
200
3.4x - 0.4 = 2.7
x = ~0.9
300
19 - w = 13
w = 32
300
2(x + 1) = 18
x = 8
300
2(3c - 8) = -8c - 2
c = 1
300
One elephant runs 10 mph for 45 minutes. How many miles does the elephant run?
7.5 miles
300
7.8 x + 2 = 165.8
x = 21
400
x/5 = -2
x = -10
400
6(t - 3) = -60
t = -7
400
-2(-7a + 4) = 5(a - 16)
a = -8
400
Two students are preparing for a marathon. Hector ran 8 miles in 85 minutes . Mario ran 6 miles in 55 minutes. Who has the faster average speed?
Mario
400
25.24 = 5y + 3.89
y = 4.27
500
p/3 = -9
p = -27
500
5y + 5(y - 3) = -63
y = -24/5 or -4.8
500
-3(d - 1) = d/5 + 3
d = 0
500
Norman received $60 for working 8 hours. At this rate, how much would he receive for working 35 hours?
$262.50
500
0 = 0.98x + 0.02b - b
Identity