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7nadin3 [17]
3 years ago
5

40÷[20−4⋅(7−4)] please put it in fraction

Mathematics
1 answer:
lawyer [7]3 years ago
4 0
Might be wrong but I came up with 320
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Multiply using mental math find the product.tell which strategy you used.
andreyandreev [35.5K]
Well nine times 199 is 1,791but im not sure if thats what its asking
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4 years ago
Identify which of these designs is most appropriate for the given​ experiment: completely randomized​ design, randomized block​d
sasho [114]

Answer:

Matched pairs design

Step-by-step explanation:

Looking at the options;

-It's not a completely randomized design because a randomized design will assign all individuals to a group which in this case it doesn't.

- It's not a randomized block design because randomized block design will group the subjects in question into 2 or more blocks which have a common characteristic and will then randomly assign subjects in each of the blocks.

-It's a matched pair because every individual/subject undergoes measurements both before and after being treated with the drugs.

Thus, the correct option is matched pairs design.

7 0
3 years ago
Hannah buys 2/3 pound of roast beef. She uses 1/4 pound to make a sandwich for lunch. How much roast beef does she have left?
Eddi Din [679]

Answer:

He would have 5/12 pound left.

Step-by-step explanation:

In order to find this, we simply subtract the amount from the original total.

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8/12 - 3/12

5/12

7 0
3 years ago
Kirsten and Molly are on a 3-day bike ride. The entire route is 156 miles. On the first day, they biked 64 miles. On the second
ki77a [65]
47miles on the third day. 

4 0
3 years ago
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An individual who has automobile insurance from a certain company is randomly selected. Let Y be the number of moving violations
dimulka [17.4K]

Answer:

a. 0.80

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Step-by-step explanation:

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E(Y)=S_yP(Y=y)\\\\=0\times 0.5+1\times 0.25+2\times 0.20+3\times 0.05\\\\=0.80

Hence the expected value E(Y) is 0.80

b. From a above we have the expectation as  E(Y)=0.80.

-The expected amount is calculated by multiplying  expectation by the surcharge:

Ex \ Amount= E(Y)\times surcharge\\\\=0.80\times 100\\\\=80

Hence, the expected amount of surcharge is $80

4 0
3 years ago
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