3 years ago

PLEASE HELP!! I need help with the problem in the picture

Mathematics

1 answer:

Doss [256]3 years ago

5 0

Answer:

i dont know how to help you:(

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At PrintAll copying, a new copying machine can produce five more than twice the number of copies per hour of the old copy machin

prohojiy [21]

Answer:

100

Step-by-step explanation:

take the words 5 more or plus 5+, than twice (2) a number or the amount the old machine can use (x). put it together to get 5+2x now the new one can produce 205 copies total. we use total as equal so, 5+2x=205, subtract 5 on both sides. 2x=200 and divide by 2 to both sides. x=100

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4 years ago

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A pediatrician has administered a flu vaccine to 1,000 children in a local community. The average number of children who contrac

White raven [17]

Answer:

1.83%

Step-by-step explanation:

For the expected value of 4 cases per 1000 children. We can use a formula for Poisson distribution to calculate the probability that none of the 1000 students would contract the flu:

$P(X = 0) = \frac{\lambda^ke^{-\lambda}}{k!}$

$P(X = 0) = \frac{4^0 e^{-4}}{0!}$

$P(X = 0) = \frac{1}{e^4} = 0.0183$

So the probability of this to happens is 1.83%

7 0

4 years ago

Help meeeeeeeeeeeeeeeeeee

Alex_Xolod [135]

Answer:

I believe its D and E

Step-by-step explanation:

Does that help

3 0

3 years ago

Factor the expression 45b+40

natali 33 [55]

Answer:

5(9b + 8)

Step-by-step explanation:

Rewrite 45 as 5 * 9

Rewrite 40 as 5 * 8

= 5 * 9b + 5 * 8

Factor out common term 5

=5 (9b + 8)

6 0

2 years ago

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Help help help help help help

tamaranim1 [39]

Answer:

1.parenthesis, exponents, multiplication, division, addition, subtraction (pemdas is the Oder of operations)

2. please enjoy my dish and seafood

3.14

4. 4

5. 5

6. 7

7.25

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3 years ago