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2 years ago

In a group of 25 students at lunch, 10 prefer ketchup on their hamburger, 10 prefer mustard on

Mathematics

1 answer:

Alex2 years ago

6 0

Answer:

15/25 or 3/5 or 60%

Step-by-step explanation:

P(K or M) = P(K) + P(M) - P(K and M)

= $\frac{10}{25}$ + $\frac{10}{25}$ - $\frac{5}{25}$

= $\frac{15}{25}$

= .6 or 60%

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Step-by-step explanation:

4z-(-3z).

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2 years ago

Read 2 more answers

Omar has 2-5/8 cups of dough to make dumplings. If he uses 3/16 cup of dough for each dumpling, how many whole dumplings can Oma

Arte-miy333 [17]

Answer:

The number of whole dumpling does Omar make is 14 .

Step-by-step explanation:

Given as :

The number of cups does Omar has to make dumplings = x = 2 $\dfrac{5}{8}$

i.e x = $\dfrac{16 + 5}{8}$

or, x = $\dfrac{21}{8}$

Again

The number of cups uses for each dumpling = y = $\dfrac{3}{16}$

i.e y = $\dfrac{3}{16}$

Let The number of whole dumpling does Omar make = z

So, number of whole dumpling does Omar make = $\dfrac{\textrm number of cups does Omar has to make dumplings}{number of cups uses for each dumpling }$

Or, z = $\dfrac{x}{y}$

Or, z = $\frac{\frac{21}{8}}{\frac{3}{16}}$

Or, z = $\frac{21\times 16}{8\times 3}$

∴ z = 7 × 2

i.e z = 14

So, The number of whole dumpling does Omar make = z = 14

Hence, The number of whole dumpling does Omar make is 14 . Answer

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3 years ago