230/2 = 115 is equal to one pizza
115*5= 575 calories
0.2x + 0.7(50) = 0.4(x + 50)
0.2x + 35 = 0.4x + 20
35 = 0.2x + 20
15 = 0.2x
75 liters = x
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The four as a decimal is 0.04 (four hundredths) and as a fraction 1/25
Answer:
.9 km in 5 minutes and 3.6 km in 20 min
Step-by-step explanation:
Multiply the time to the distance to fine total distance then convert to the wanted unit!