8 + [ 13 - (2+1)] Mathematics Thank you

Mathematics

2 answers:

Setler [38]4 years ago

8 0

Answer:

Step-by-step explanation:

First add the numbers in the parantheses, then subtract it in the bracket, then add 8+10 and that gives you 18!

pashok25 [27]4 years ago

7 0

Answer:

Step-by-step explanation:

first you do anything in parentheses. which is 2+1. then you do what is in the brackets which is 13-3 which is 10. then all that is left is 8+10 and you get 18.

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Solve the inequality -4n > 36

Lemur [1.5K]

Answer:

n < -9

Step-by-step explanation:

Divide both sides by -4, like so:

-4n > 36

n > -9

However, anytime you multiply/divide the inequality by a negative number, you must flip the sign around, like so:

n < -9

5 0

3 years ago

Two-thirds of the T-shirts in a T-shirt shop are blue. Three-fifths of those T-shirts are on sale. One-half of the blue T

katrin2010 [14]

Let, total number of T-shirts are x.

Number of blue T-shirts = (2/3)x = 2x/3 .

Number of blue shirts on sale = (3/5)(2x/3) = 2x/5 .

Number of medium sized blue shirts on sale = (1/5)(2x/5) = 2x/25 .

Fraction of the shop's T-shirts are blue T-shirts that are on sale and are size medium = $\dfrac{2x/25}{x}$ = 2/25 . ( Number of medium sized blue shirts on sale divided by total number of T-shirts )