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3 years ago

What is the value of y? Enter your answer in the box.

Mathematics

2 answers:

Sphinxa [80]3 years ago

5 0

Keywords:

<em>Triangle, angles, internal angles, sum </em>

For this case we have a triangle, in which we are given two angles and we must find the missing angle. We know that by definition, the sum of the internal angles of a triangle is 180 degrees.

$37 + 79 + y = 180$

Where "y" represents the measure of the missing angle.

Clearing "y" we have:

$116 + y = 180\\y = 180-116\\y = 64$

Thus, the missing angle is $y = 64$ degrees.

Answer:

$y = 64$ degrees

Lady_Fox [76]3 years ago

3 0

The answer is 64. Hope I helped!

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suppose the number of fiction books is 2/7 times the number of nonfiction books. what would be the ratio of the numbers of nonfi

Elis [28]

Well, the total amount of books is all fiction books and nonfiction books, let's say is "x", total

now, the fiction books are 2:7 or 2/7 to nonfiction

so, if we divide the total "x" by 2+7, or 9, 2 of those quotients go to fiction and 7 of those go to nonfiction

if we divide "x" by 9, a "whole" is 9/9 or (9/9)x or 1x or just "x"

and we know 7 of those 9ths belong to nonfiction, thus

$\bf \begin{array}{clclclll}
\cfrac{2}{9}&+&\cfrac{7}{9}&=&\cfrac{9}{9}\\
\uparrow &&\uparrow &&\uparrow \\
fiction&&nonfiction&&whole
\end{array}\\\\
-----------------------------\\\\
\cfrac{nonfiction}{whole}\implies \cfrac{7}{9}\implies 7:9\impliedby ratio$

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3 years ago

The population of a city in 2005 was 36,000. By 2010, the city’s population had grown to 43,800 people.

Feliz [49]

I believe the answer is 51,600 hope that helps!(:

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3 years ago

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Without calculating, is the equation (1.8 times 3) times 2.1 = ( 1.8 times 2.1 ) true or false? Explain your reasoning.

Paladinen [302]

It is true due to the commutative property of multiplication. If all of your operations are multiplication, then the integers can move around and you can still get the same answer.
^This is only true if you meant to type (1.8x3)x2.1=(1.8x2.1)x3

If you meant what you typed, then the equation is false. The left side would be 3 times the value of the right side due to the 3 being on the left side and not the right side while without the 3 the two sides would be equal.

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3 years ago

Explain, in your own words, the steps necessary to solve a system of equations

Lady_Fox [76]

Step-by-step explanation:

you solve for one of the variable in terms of the 2nd variable in one equation. then you substitute that equation for the variable in the second equation. since it now only has one variable you should be able to solve for the variable.

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3 years ago

Jane thinks of two numbers. The Highest common factor is 3 and the lowest common multiple is 45.Write down two numbers that Jane

Nutka1998 [239]

Answer:

The number Jane is thinking of is 42.

Step-by-step explanation:

45-3

=42

Vous êtes les bienvenus...

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3 years ago

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