A place from this table is chosen at random. let event A= the place is a city
2 answers:
Answer:
There are 7 places shown in the table which are , →{Rome, Tokyo, Houston, Peru, Miami, Toronto, Canada}
Out of which 5 are cities.
City={Rome, Tokyo, Houston,Miami, Toronto,}=5
It is given that a,place from the city is chosen.
Probability of an Event
Probability of selecting a city from 7 places in which 5 are cities
Option B
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Answer:
Step-by-step explanation:
Give the expression ax – c = bx + d, we are isolate x i.e we are to make x the subject of the formula.
ax – c = bx + d
Step 1: subtract bx from both sides
ax – c = bx + d
ax-bx = d+c
Step 2: Factor out x in the left hand side of the resulting expression
x(a-b) = d+c
Step 3: Divide both sides by the coefficient of i.e (a-b)
Hence Victoria can justify the step 3 of her work by dividing both sides of the expression in 2 by a-b