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Sagot :
Answer:
John spent 2.7 hours working on the project.
Step-by-step explanation:
Dawn: 5x-1.5 with x representing the number of hours John spent
Keith: 4x+1.2
If Dawn and Keith spent equal time then these 2 equations equal each other then solve for x.
5x-1.5=4x+1.2
5x-4x=1.2+1.5
x=2.7
Answer:
John spent 2.7 hours
Step-by-step explanation:
John will be (z)
Dawn has spent 5z-1.5
Keith has spent 4z+1.2
5z-1.5=4z+1.2
+1.5 +1.5
5z = 4z+2.7
-4z -4z
z = 2.7
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