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
Elodia [21]
2 years ago
5

Find the sum of 5(-3.4k -7) + (3k +12) and please show work

Mathematics
1 answer:
pishuonlain [190]2 years ago
5 0
5(-3.4k-7)+(3k+12)=\ \ \ \ | omiting\ brackets\\\\
-17k-35+3k+12=\\\\
-14k-23\\\\
Solution\ is\ -14k-23
You might be interested in
una caja contiene 2 bolitas blancas y 3 blancas .la probabilidad de que la primera extraída sea blanca y la segunda sea negra ,
zzz [600]

si cinco son blancas como va a ver una negra ?

6 0
3 years ago
Please help fast mathswatch!! I
netineya [11]

Answer:

<h2><u><em>288 cm³</em></u></h2>

Step-by-step explanation:

find the volume of one and multiply by six

6 * 2 * 2 * 12 =

288 cm³

4 0
2 years ago
Read 2 more answers
PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!
Brilliant_brown [7]

-2<em>x</em> + 6<em>y</em> = -38

3<em>x</em> - 4<em>y</em> = 32

To solve by elimination, multiply the top equation by 3 and the bottom equation by 2.

3(-2<em>x</em> + 6<em>y</em> = -38) --> -6<em>x</em> + 18<em>y</em> = -114

2(3<em>x</em> - 4<em>y</em> = 32) --> 6<em>x</em> - 8<em>y</em> = 64

Add the equations.

-6<em>x </em>+ 18<em>y</em> = -114

6<em>x</em> - 8<em>y</em> = 64

+_____________

0 + 10<em>y</em> = -50

10<em>y</em> = -50

<em>y</em> = -5

Substitute -5 for y into one of the original equations to find x.

3<em>x</em> - 4<em>y</em> = 32

3<em>x</em> - 4(-5) = 32

3<em>x</em> + 20 = 32

3<em>x</em> = 12

<em>x</em> = 4

Check work by plugging the <em>x</em>- and <em>y</em>-values into both of the original equations.

-2<em>x</em> + 6<em>y</em> = -38

-2(4) + 6(-5) = -38

-8 - 30 = 38

38 = 38


3<em>x</em> - 4<em>y</em> = 32

3(4) - 4(-5) = 32

12 + 20 = 32

32 = 32

Answer:

<em>x</em> = 4 and <em>y</em> = -5; (4, -5).

8 0
3 years ago
Read 2 more answers
if you only had time to shop for these ingredients at one of the stores,which one would you go to and why?
leonid [27]

Answer:

but what ingredients do i need to buy?

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
PLZ HELP FAST <br> how do you find the surface area of a rectangle prism.
Anon25 [30]
Find the dimensions of the rectangular prism
3 0
3 years ago
Read 2 more answers
Other questions:
  • In an arithmetic​ sequence, the nth term an is given by the formula An=a1+(n−1)d​, where a1
    11·1 answer
  • Explanation how solve step by step 2/7m-1/7=3/14
    5·1 answer
  • Sue earns 20$ per hour. How much does she earn in 1/4 of an hour​
    14·1 answer
  • Yoko received a $80 gift card for a coffee store. she used it in buying some coffee that cost $7.58 purse pound after buying the
    13·2 answers
  • What is <br> (-1/3)+1/4+(-1/5)
    15·1 answer
  • Simplify each using positive exponents only: questions on image
    15·1 answer
  • HELP ME PLEASE I NEED HELP ASAP JUST SOLVE THE EQUATION
    14·1 answer
  • Cho hàm số f(x,y)= x +√(1+x^2+y^2). Tính f'(x,y)=?
    7·1 answer
  • Plz help I need help
    8·1 answer
  • En una tienda comercial anuncia descuentos sucecivos del 30% y 20% en todos los electrodomésticos, ¿Que descuento único equivale
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!