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
Yuliya22 [10]
3 years ago
5

What is the sum of 5(−3.4k−7) (3k 21) =

Mathematics
1 answer:
Oksana_A [137]3 years ago
8 0
I am assuming that the correct equation is 5(-3.4k - 7) + (3k 21) to get the sum.

distribute multiplication:

5(-3.4k) - 5(7) + (3k*21) = 0
-17k - 35 + 63k = 0

Look for k:

-17k + 63k = 35
46k = 35
46k / 46 = 35 / 46
k = 0.76

Substitute k with 0.76

5(-3.4k - 7) + (3k21) = 0
5[(-3.4)(0.76) - 7] + [{(3)(0.76)}21] = 0
5(-2.584 - 7) + (2.28)(21) = 0
5(-2.584) - 5(7) + 47.88 = 0
-12.92 - 35 + 47.88 = 0
- 47.92 + 47.88 = 0.04

You might be interested in
PLEASE AWNSER FAST I DONT HAVE MUCH TIME LEFT I NEED EVERY QUESTION PLEASE PLEASE HELP WILL RATE 5 STARS AND THANK YOU AND BRAIN
bonufazy [111]

Answer:

3:2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Cara is grocery shopping and needs chicken and steak for the barbecue she is having on Saturday. Chicken is 2.99 per pound and s
vodka [1.7K]

2.99* c+5.79* s= 50

2.99c+ 5.79s =50


8 0
3 years ago
What is the correct expanded form for the number 43.205?
nasty-shy [4]

Answer:

2nd one

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
suppose the divisor and the dividend of a division problem are both fractions between 0 and 1, and the divisor is greater than t
Virty [35]

Divisor and Dividend are fractions lying between 0 and 1

Also, Divisor > Dividend

⇒ A smaller number is being divided by a larger number

Whenever a smaller number is divided by a larger number, the quotient is less than 1

E.g. Let divisor be \frac{4}{5} and dividend be \frac{2}{5}

\frac{4}{5} ÷ \frac{4}{5} = \frac{1}{2}, which is less than 1

Hence, the answer is that the quotient will be less than 1

7 0
3 years ago
Read 2 more answers
Please answer the following 4 questions
Lilit [14]
1. The correct answer should be A
2. The answer should be C
3. I think the answer is D
4. The answer should be D


Hope this helps :)
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is G (f) = 3k (2) -22 k=4 I can't get it
    7·2 answers
  • How can bar diagrams be used to model numerical expressions
    7·2 answers
  • Here is another question that i need help on so here it is 6*5000 and here are the steps:
    7·1 answer
  • Consider f(x) = bWhich statement(s) are true for 0 < b < 1? Check all that apply.
    10·1 answer
  • If f(x) and 1(x) are inverse functions of each other and f(x) = 2x+5, what is ri(8)?
    8·1 answer
  • I need help with this question please :)
    7·1 answer
  • If <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Ba%20%2B%20ib%7D%7Bc%20%2B%20id%7D%20" id="TexFormula1" title=" \frac{a + i
    6·1 answer
  • What is the area of a square with sides of length 8
    8·1 answer
  • The perimeter of a rectangle is (24+40gh) inches. Factor the expression completely.​
    7·1 answer
  • A particle moves on the x-axis so that its position is continuous on the interval [3, 13] with some of its values for its veloci
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!