3 years ago

Franklin buys 2 postcards during each day of vacation. How many days will Franklin have to

Mathematics

1 answer:

Phoenix [80]3 years ago

4 0

Answer:

2 days

Step-by-step explanation:

because if he buys two each day then he will have four cards on the second day

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Evaluate 19C1 PLEASE HELP

LiRa [457]

Answer:

${19}C_1=19$

Step-by-step explanation:

We need to find the value of ${19}C_1$ .

C stands for combination.

The formula of combination is as follows :

$nC_r=\dfrac{n!}{r!(n-r)!}$

Here,

n = 19 and r = 1

So,

$nC_r=\dfrac{19!}{1!(19-1)!}\\\\nC_r=\dfrac{19!}{1!\times 18!}\\\\nC_r=\dfrac{19\times 18!}{1!\times 18!}\\\\nC_r=19$

So, the value of ${19}C_1$ is 19.

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Josh has played in 3 times as many as Lisa has.

Step-by-step explanation:

She mixed up multiplication and addition.

6+12=18

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Wait..why is it gcf...

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Step-by-step explanation:

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3+x=8 What would like match this answer

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