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
matrenka [14]
4 years ago
5

PLEASE HELP!!!!!! WILL MARK BRAINIEST FOR BEST ANSWER!!!!!!

Mathematics
1 answer:
kupik [55]4 years ago
3 0

2a + 7b = 0 ⇒ 10a + 35b = 0

3a - 5b = 31 ⇒ 21a - 35b = 217

31a = 217

a = 7

2a + 7b = 0

2(7) + 7b = 0

14 + 7b = 0

7b = -14

b = -2

(x, y) = (7, -2)

1. Associative Property of Addition

2. Addition Property of Equality

3. Division Property of Equality

4. Substitution Property of Equality

5. Multiplication Property of Equality

6. Subtraction Property of Equality

7. Simplify

You might be interested in
Estimate 19 precent of 41
Burka [1]

19% turns into 20%

20%*41=8.2

Have a nice day.

4 0
3 years ago
Write the ratio as a fraction in simplest from. 7/21
Andrews [41]
7/ (3*7)=
(7:7)/ (7*3): 7:)
(7:7):(21:7=
answer 1/3 or do you want full explanation of each step?
8 0
3 years ago
PLEASE HELP ME OUT, I’LL GIVE U 100 POINTS AND BRAINLY, please someone, I need it done soon :((
34kurt

Answer:

first \\ y \: intercept = 2 \\ slope =  \frac{0 - 2}{4 - 0}   = - 0.5 \\

second \\ y \: intercept =  - 2 \\ slope =  \frac{ - 1 - ( - 2)}{6 - 0}  =  \frac{1}{6}

third \\ slope =  \frac{100 - 60}{3 - 2}  = 20 = add \: each \: month \\ start \: money = 60 - 1 \times 20 = 40

5 0
3 years ago
Identify the type of function below.<br> F(x) = 4x + 2
Molodets [167]

Answer: I cheated and looked it up. It says parabola or basic parabola.

8 0
3 years ago
There is a line that includes the point (3, 8) and has a slope of 6 . What is its equation in slope-intercept form ?
goldenfox [79]

Answer:

y=6x-10

Step-by-step explanation:

Use Point-Slope form to solve this problem

Point Slope Form: y-y1=m(x-x1)

M is your slope, in this case, m will be 6

Plug in the values of your coordinates (3,8), ambigously, 3 will be the value of x1 and 8 will be the value of y1.

New equation: y-8=6(x-3), start solving from here

y-8=6x-18

Use inverse operations to get y alone, opposite of subtraction is additiin so add 8 to both sides of the equation

y=6x-10

5 0
3 years ago
Other questions:
  • Help me with this question please
    11·1 answer
  • Patty volunteers for 2 hour on saturday and 3 hours on sunday how many hours does she do in a week
    5·1 answer
  • Which of the following is true for all rectangle
    5·2 answers
  • Which point represents 2 and one-fourth on the graph?
    14·2 answers
  • A line passes through the point (4,-2) and has a slope of 1/2 what is the value of a if the point (-4,a) is also on the line
    6·1 answer
  • ~Uh- ~ Hey ~ can ~ someone ~ help ~ me ~ out ~ once ~ again...?~
    8·2 answers
  • One way of checking the effect of undercoverage, nonresponse, and other sources of error in a sample survey is to compare the sa
    8·1 answer
  • The savings account offering which of these APRs and compounding periods
    10·2 answers
  • Pls help<br> Pls help<br> Pls help
    10·1 answer
  • 1) 2(x + 3) = x - 4<br><br> 2) 4(5x-2)=2(9x+3)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!