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2 years ago

13

Half of your baseball cards collection got wet and was ruined.You bought 19 cards to replace some that were lost. How many did y

ou begin with if you now have 45

1 answer:

vazorg [7]2 years ago

4 0

Answer:

45-19=26

Is this correct?

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What is a even number between 2 and 10

nalin [4]

There are several, however one is 6.
The other answers are 4 and 8.

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2 years ago

What is 87 x 54 - 200 divided by 7

Svet_ta [14]

Answer:

87 x 54 - 200 divided by 7
solving-4669[3|7] , 4669.428571
answer-32686.7

Step-by-step explanation:

4 0

2 years ago

Last year, a person wrote 126 checks. Let the random variable x represent the number of checks he wrote in one day, and assume

Arisa [49]

Answer: The mean number of checks written per day $=0.3452$

Standard deviation $=0.5875$

Variance $=0.3452$

Step-by-step explanation:

Given : The total number of checks wrote by person in a year = 126

Assume that the year is not a leap year.

Then 1 year = 365 days

Let the random variable x represent the number of checks he wrote in one day.

Then , the mean number of checks wrote by person each days id=s given by :-

$\lambda=\dfrac{126}{365}\approx0.3452$

Since , the distribution is Poisson distribution , then the variance must equal to the mean value i.e. $\sigma^2=\lambda=0.3452$

Standard deviation : $\sigma=\sqrt{0.3452}=0.5875372328\approx0.5875$

6 0

2 years ago

Jonah has a recipe that uses 1 1/2 cups of brown sugar and 2 1/3 cups of flour to make 24 muffins. He has a total of 7 cups of f

Wittaler [7]

7 total cups of flour divided by 2.33 cups of flour needed per batch of 24 muffins equals three batches, then multiply total number of batches by number of muffins in each batch- 3x24- gives you a total of 72 muffins

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2 years ago

It takes Hoai 20 minutes to walk to his friend's house 7/8 mile away.<br> What is his walking pace?

algol [13]

Step-by-step explanation:

To find her walking pace in 'miles per hour', we need to divide the distance (in miles) by the time (in hours)

speed

=

distance

time

The time is given in minutes, but

50

minutes =

50

60

hours

=

5

6

hours

1

2

3

÷

5

6

=

5

3

×

6

5

miles per hour

=

5

3

×

6

2

5

=

2

miles per hour

6 0

1 year ago

Read 2 more answers