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svetoff [14.1K]

2 years ago

5

Frank has 5 times as many postcards as Tom. Together they have 60 postcards. Let x equal the number of postcards Tom has. Comple

te the equation that
tells you exactly how many postcards Tom has.

2 answers:

ivann1987 [24]2 years ago

7 0

Answer:

Step-by-step explanation:

Ah

kykrilka [37]2 years ago

7 0

Answer: 12

Step-by-step explanation: 5x = 60

x = 12

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Naya [18.7K]

Answer:

$\left \{ {{x=2} \atop {y=2}} \right.$

Step-by-step explanation:

$\left \{ {{y=\frac{3}{2} x-1} \atop {y=-x+4}} \right. \\ \Leftrightarrow \left \{ {{-x+4=\frac{3}{2} x-1} \atop {y=-x+4}} \right. \\ \Leftrightarrow \left \{ {{\frac{5}{2}x=5} \atop {y=-x+4}} \right.\\ \Leftrightarrow \left \{ {{x=2} \atop {y=-2+4}} \right.\\ \Leftrightarrow \left \{ {{x=2} \atop {y=2}} \right.$

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Vera_Pavlovna [14]

Answer:

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Step-by-step explanation:

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For example:

The simple sampling with replacement is that every individual has the same probability of being chosen i.e. for a small sample from a large population, while sampling without replacement is approximately the same, since the chances of choosing the same individual is low.

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Ede4ka [16]

Answer:15/28

Step-by-step explanation:

3/7 divided 4/5

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago