1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
soldier1979 [14.2K]
2 years ago
15

2) Find the difference .2-.05.

Mathematics
2 answers:
nekit [7.7K]2 years ago
8 0

Answer:

0.15

Step-by-step explanation:

20-5=15. So move the decimal!

harina [27]2 years ago
7 0
0.15

20-5=15

Move the decimal two places over

0.15
You might be interested in
What 30000.48978 rounded up
Fudgin [204]

Answer:

Rounded to the nearest ones: 30000

Rounded to the nearest tenths: 30000.5

Rounded to the nearest hundredths: 30000.49

Rounded to the nearest thousandths: 30000.490

Rounded to the nearest ten-thousandths: 30000.4898

7 0
3 years ago
13x+5y=90 what is x? what is y?
Leona [35]

Answer:

X=-5y/13+90/13, Y=-13x/5+18

Step-by-step explanation:

You need to solve the equation for X and Y.

Solving for X:

13x+5y=90

Subtract 5y: 13x=-5y+90

Divide by 13: x=-5y/13+90/13

--

For Y:

13x+5y=90

Subtract 13x: 5y=-13x+90

Divide by 5: y=-13x/5+90/5

(Simplifies to -13x/5+18)

3 0
3 years ago
The height of a triangle is half the length of its base. The area of the triangle is 12.25cm. Find the height
pentagon [3]
Answer:  The height of the triangle is:  " 3.5 cm " .
_______________________________________________________
<u>
Note</u>:
 The formula/equation for the area, "A" , of a triangle is:

           A = (1/2) * b * h  ;  or write as:  A = (b * h) / 2 ; 
_________________________________________________
 in which:   "A = area of the triangle" ; 
                  "b = base length" ; 
                  "h = "[perpendicular] height" ; 
_________________________________________________
     Given:  h = (b/2) ;
                  A = 12.25 cm²
{Note:  Let us assume that the given area was "12.25 cm² " .}. 
_________________________________________________
 We are to find the height, "h" ; 

The formula for the Area, "A", is:   A = (b * h) / 2 ; 

Let us rearrange the formula ;
 to isolate the "h" (height) on one side of the equation; 

→ Multiply EACH side of the equation by "2" ; to eliminate the "fraction" ; 

2*A = [ (b * h) / 2 ] * 2 ; 

   to get:   " 2A = b * h " ; 

↔    " b * h = 2A " ; 

Divide EACH SIDE of the equation by "b" ; to isolate "h" on one side of the equation: 

        →  (b * h) / b  = (2A) / b ; 

to get: 
  
        →   h  =  2A / b ; 

Since  "h = b/2" ; subtitute "b/2" for "h" ; 
 
Plug in:  "12.25 cm² " for "A" ;

       →  b/2  =  2A/b ;   →  Note:  " 2A/b = [2* (12.25 cm²) ] / b " ;

Note:  " 2* (12.25 cm²) = 24.5 cm² ; 

Rewrite as: 

       →  b/2  =  (24.5 cm²) / b ;
_____________________________________
Cross-multiply:   b*b = (24.5 cm²) *2 ; 

to get:   b² = 49 cm² ; 

Take the "positive square root" of each side of the equation" ; 
            to isolate "b" on one side of the equation ; & to solve for "b" ; 

             →  +√(b²)  =  +√(49 cm²) ; 

             →  b = 7 cm ; 

Now, we want to solve for "h" (the height) :
_________________________________________________________
             →  h = b / 2 = 7 cm / 2 = 3.5 cm ; 
_________________________________________________________
Answer:  The height of the triangle is:  " 3.5 cm <span>" .
</span>_________________________________________________________
6 0
3 years ago
Put the correct answer in each blank.
serious [3.7K]

Answer:

H or (3.5,-3)

number two:

B and (3.5,5)

Step-by-step explanation:

3 0
3 years ago
Question is worth 25 points what is 15 squared?
makkiz [27]
The answer is 225
15•15=225
7 0
3 years ago
Other questions:
  • Below is the five Number summary for a 136 hikers who recently completed the John muir trail JMT the variable is the amount of t
    14·1 answer
  • Select the correct answer from each drop down menu y=x^2+2x-1 y-3x=5
    5·1 answer
  • What is the answer to the equation 63.14 x 2.08
    8·2 answers
  • 1 lakh more then 45,25,306​
    7·1 answer
  • What is 3 divided by 5 5/8
    12·2 answers
  • !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    10·1 answer
  • Name a segment parallel to bc
    10·2 answers
  • Let's evaluate 3x + 4 when x=5
    12·1 answer
  • After reading 7/9 of a book, 40 pages are left. Find the total number of pages in the book​
    12·1 answer
  • Use a net to find the surface area of the prism 32cm by 12cm by 6.5
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!