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goblinko [34]
3 years ago
7

in a class of 40 students, all play at least one sport. if 21 students play basketball, 18 play soccer, 15 play volleyball, and

6 students play exactly two sports, then how many play all three sports?
Mathematics
1 answer:
Minchanka [31]3 years ago
4 0
20 students play all three sports
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Find/solve for x in the image above
Flura [38]

Answer:

Step-by-step explanation:

Simply we know this is an isosceles triangle meaning that:

The other angle is also 35.

With this information, we can say that as a triangle adds up to 180, we can put this in a formula:

x+35+35 = 180

x+70 = 180

x = 110

8 0
3 years ago
One quarter of a certain number added to one eighth of the same number is 12. What is the number​
alexdok [17]

Answer:

32

Step-by-step explanation:

let the number be n , then

\frac{1}{4} n + \frac{1}{8} n = 12 ( multiply through by 8 to clear the fractions )

2n + n = 96

3n = 96 ( divide both sides by 3 )

n = 32

The number is 32

6 0
3 years ago
Find the value of 4²+6÷2
belka [17]

The answer is:    " 19 " .

_____________________

Explanation:

To solve:

_____________________

Given:

" 4² + 6 ÷ 2 " ;

We solve using "PE MD AS" (mnemonic device for order of operations in order of consideration);  which stands for:

           "Please Excuse My Dear Aunt Sally (or Aunt Susan)" ;

Alternately:  "BE MD AS"  

           " Be Excused My Dear Aunt Sally (or Aunt Susan)" .

                         "Parentheses {alternative version:  "Brackets" ; in which "Parentheses can be considered "Brackets" ; yet in reality, Brackets would come before Parentheses}, then Exponents, then "Multiplication then Division (from left to right as they occur in the problem) , then "Addition then Subtraction (from left to right as they occur in the problem) .

_____________________

As such:  

Given:   " 4² + 6 ÷ 2 " , we have:  

"exponents", "addition" and "division" ;

So we can rewrite the problem as:

   "  (4²) + (6 ÷ 2) =

      (4 * 4) + (3)  =

       (16)   +  (3)  =  19 .

_______________________

The answer is:    " 19 " .

_____________________

7 0
3 years ago
Help please! ill mark brainliest!
jenyasd209 [6]

Answer:

The answer is 90

Step-by-step explanation:

When HI=GH

Then m<G=m<I= 45

m<H=180-(45+45)=90

If you need any explanation in it or anything on math you can communicate with me on Whats on this number +201557831028 or in email or face or anything

4 0
3 years ago
16.37 rounded to the nearest whole number is 16 feet per second.true or false
Verizon [17]

Answer: true i guess ;-;

Step-by-step explanation:

7 0
3 years ago
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