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
melisa1 [442]
3 years ago
15

Complete the solution of the equation. find the value of y when equals 2. -3x-8y=10

Mathematics
1 answer:
Afina-wow [57]3 years ago
4 0
The value of y can be calculated by translating the equation such that we solve y in terms of x.

                            -3x - 8y = 10
 
                               -8y = 10 + 3x
 
                               y = (10 + 3x) / -8

Then, we substitute 2 to the x in the equation.

                             y = (10 + 3(2)) / - 8  = 16/-8

                                y = -2 

Thus, the value of y in the equation is -2. 
You might be interested in
Please help me on this problem​
AleksandrR [38]
Find the perimeter of the scale artwork
P=2(l+w)
P=2(2.5+1.75)
=2(4.25)= 8.5 in

1 in = 0.5 ft
8.5in = 0.5(8.5)
=4.25ft = 51 in
the actual perimeter is 51 in or 4.25 ft
7 0
3 years ago
PLEASE CAN SOMEONE find the value of the trigonmetric ratio
VashaNatasha [74]
For this case we have the following trigonometric relationship:
 sine (x) = C.O / h
 Where,
 x: angle
 C.O: opposite leg
 h: hypotenuse
 Substituting values:
 sine (C) = 9/41
 Answer:
 
the value of the trigonometric ratio is:
 
sine (C) = 9/41
5 0
3 years ago
The area of a rectangle is 980 in squared. the ratio of the length to the width is 5 : 4. find the length and the width.
ella [17]
Answer:   The length of the rectangle is 35 in.

                 The width of the rectangle is 28 in.
_________________________________________________________
Explanation:
_________________________________________________________
The formula for the area, "A", of a rectangle:

Area (A) = length (L) * width (w) ; 
 
  that is:   "  A  =  L  *  w  "  ;

A = 980 in²  (given);

ratio of the length to the width is:  " 5 : 4 " (given); 

→   Find the length (L) and the width (w).
_________________________________________________________

→  980 in²  =  (5x) * (4x) ; 

in which:  " 980 in² " is the area of the triangle; 

                 " 5x" = the length (L) of the rectangle, for which we shall solve; 

                 " 4x" = the width (w) of the rectangle, for which we shall solve.
_______________________________________________________
If we find solve for "x" ; we can solve for  "5x" and "4x" (the "length" and the "width", respectively);  by plugging in the solved value for "x" ; 
_______________________________________________________

   →  980 in²  =  (5x) * (4x) ; 

   ↔   (5x) * (4x) = 980 in²  ; 

   →   (5x) * (4x) = (5) * (4) * (x) * (x)  = 20 * x² = 20x² ;

   →  20x²  =  980 ;

Divide each side by "10" ; by canceling out a "0" on each side of the equation:

   →  2x² = 98 ; 

Now, divide each side of the equation by "2" ;

   → 2x² / 2  =  98 / 2 ; 

to get:  

→  x² = 49 ; 

Now, take the "positive square root" of each side of the equation;  (since a "length or width" cannot be a "negative value") ; 
    to isolate "x" on one side of the equation; & to solve for "x" ; 

→  ⁺√(x²) = √49 ; 

to get:

→  x = 7 ;
______________________________________________________
Now, we can solve for the "length" and the "width" ; 

→  The length is:  "5x" ;   

     5x = 5(7) =  " 35 in " ; 
______________________________________________________
→  The width is:  "4x" ; 

     4x =  4(7) =  "28 in."
______________________________________________________
Let us check our answer:

    →  A = L * w ; 

    →  980 in² = ?  35 in. * 28 in. ?? ; 

   Using a calculator:  "35 * 28 = 980" .  Yes!   ;
____________________________________________________
 { Also note:  " in * in = in² " ?  Yes! } .
____________________________________________________
3 0
3 years ago
Jolene is playing basketball. she scored 11 baskets in 15 free throws. what is the experimental probability that she will score
Elanso [62]
So probobillity is total sucsesses over total possible or TS/TP so

11/15 so the probobility is 11/15 or 0.73
4 0
3 years ago
Read 2 more answers
PLEASE HELP.! <br> Solve for k.<br><br> 2 = k/3<br> k = ?
borishaifa [10]

Answer:

6

Step-by-step explanation:

Because 6/3 equals 2

5 0
3 years ago
Read 2 more answers
Other questions:
  • To represent the loss of 5 points on the stock market you could use
    10·1 answer
  • The expression x^a ÷ x^b is equivalent to......<br>HELPPP
    7·1 answer
  • Help like I do not understand math at all
    14·2 answers
  • H = -16t2 + 64t + 80 Determine the maximum height of the rocket. Show your work.
    8·1 answer
  • What is a factor of 13 and 80
    7·1 answer
  • If a prize of $6000 was divided among Georgia, Leanne and Maya in the ratio
    8·1 answer
  • Find the slope of the graph below​
    11·2 answers
  • Use the substitution method to solve each linear system. 4x - 3y = -13,-2x + y = 4
    6·1 answer
  • Please tell me the answer
    6·2 answers
  • n how many ways can the letters in the word PAYMENT be arranged using 4 letters? A. 42 B. 1260 C. 840 D. 2520
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!