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Soloha48 [4]
2 years ago
5

To evaluate the integrity of underground water lines, the department of public works randomly selects 20 sites in the city to un

earth and observe the water lines. At 5 of the sites, the water lines needed repair. The department of public works concludes that about one-fourth of underground water lines throughout the city need repair.
3. To award prizes at a hockey game, four tickets with individual seat
numbers printed on them are picked from a barrel. Since Elvis's
section was not selected for any of the four prizes, he assumes that
they forgot to include the entire section in the drawing.
Mathematics
2 answers:
ollegr [7]2 years ago
6 0
4. Normal body temperature is 98.6 degrees Fahrenheit, although it varies slightly for some people. Someone ?
Zanzabum2 years ago
6 0
98.6, I think, tell me how you do!
You might be interested in
Compare rates of change.
MrMuchimi
Y=foot
x=foram

A. easy, plug 17 for x and evaluage for y
y=0.860(17)+3.302
y=14.62+3.302
y=17.922 inches


B. rate of change is slope
y=mx+b
m=slope
so
rate or change is 0.860 inches per legnth of forarm

C. what data

D. it is a function
since it is 1st degree (no exponents greater than 1 on the placeholder), and it is not a vertical line
it is a function
7 0
3 years ago
The answer to 1/4 times 4 in fluid ounces
Kitty [74]
The answer is 1



Hope this helped :)

3 0
2 years ago
Read 2 more answers
X - 3y = 17<br> x = 2y + 13<br> What are the steps for solving these?
lbvjy [14]

Answer:

  (x, y) = (5, -4)

Step-by-step explanation:

The second equation gives you an expression for x that can be substituted into the first equation.

  (2y +13) -3y = 17 . . substitute for x in the first equation

  -y = 4 . . . . . . . . . . . subtract 13 and simplify

  y = -4

  x = 2(-4) +13 = 5 . . . use the second equation to find the value of x

The solution is (x, y) = (5, -4).

_____

<em>Additional comment</em>

When faced with a system of linear equations, the first step is to look at them and observe where the variable terms are, and any relationships between coefficients. Several options are generally open to you for solving the equations. Methods generally taught first are ...

  • substitution
  • elimination

<em>Substitution</em> is handy when one of the variables or variable terms can be written (easily) in terms of the other variable. <em>Elimination</em> is handy when some simple multiple of one of the equations can be added to the other equation to cancel one of the variable terms (eliminate it).

Other available methods include matrix methods, Cramer's rule, and graphing. Working knowledge of all of these methods will help you identify the one that will be easiest to use in any given situation.

The availability of calculators able to use these methods greatly simplifies the task of finding a solution. It is simply a matter of entering the equations in the appropriate form.

One of my favorites is the graphing calculator, which only requires you type in the given equations and click on the solution point to find its coordinates.

4 0
2 years ago
Write 8 19/20 as a decimal.
Kaylis [27]

Answer:

8.95

Step-by-step explanation:

Since 8 is a whole number it’s before the decimal. So,

8.

To turn a fraction to a decimal just divide the top number by the bottom. So,

19/20 = 0.95

8 + 0.95 = 8.95

Therefore, the answer is 8.95

7 0
2 years ago
Read 2 more answers
8. Find the area of the triangle. (1 point) 16 ft 62 ft Not drawn to scale. ​
mr Goodwill [35]

Answer:

Hello! Answer: 496

Step-by-step explanation:

When finding area for triangles we have to do base x height then divide by 2 so

62 x 16 = 992

992 ÷ 2 = 496

So 496 is our answer!

3 0
3 years ago
Read 2 more answers
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