What number is 40% of 50

Mathematics

2 answers:

svlad2 [7]3 years ago

5 0

Twenty is 40% of 50 because 10% of 50 is 5 so 5*4 = 20

Usimov [2.4K]3 years ago

5 0

40% of 50 is 20. I hope this answer would be correct

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The sum of four consecutive even integers is 180. what is the smallest integer?

n200080 [17]

42
let the smallest even number be x, than the four even numbers are x, x+2, x+4, x+6, their sum is 180

x+x+2+x+4+x+6=180
4x+12=180
4x=168
x=42
the smallest even number is 42.

3 0

3 years ago

1 3/4 − 4/5 = 35 twentieths − what fraction??? Plss help will give brainliest :)

7nadin3 [17]

let's firstly convert the mixed fractions to improper fractions and then to do away with the denominators, let's multiply both sides by the LCD of all denominators.

$\stackrel{mixed}{1\frac{3}{4}}\implies \cfrac{1\cdot 4+3}{4}\implies \stackrel{improper}{\cfrac{7}{4}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{7}{4}-\cfrac{4}{5}=\cfrac{35}{20}-\boxed{?}\implies \stackrel{\textit{multipling both sides by }\stackrel{LCD}{20}}{20\left( \cfrac{7}{4}-\cfrac{4}{5} \right)=20\left( \cfrac{35}{20}-\boxed{?} \right)} \\\\\\ 35-16=35-20\boxed{?}\implies 19=35-20\boxed{?}\implies -16=-20\boxed{?} \\\\\\ \cfrac{-16}{-20}=\boxed{?}\implies \cfrac{4}{5}=\boxed{?}$