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
NemiM [27]
3 years ago
6

Use algebraic rules of equations to predict the solution type to the system of equations. Include all of your work for full cred

it. x + 2y = 10 6y = -3x + 30
Mathematics
1 answer:
stira [4]3 years ago
3 0

Answer: infinitely many solutions

Step-by-step explanation: 6y = -3x + 30 rewrites to 3x + 6y = 30

1. align equations x + 2y = 10

                           3x + 6y = 30

2. multiply first equation by -3 to get -3x - 6y = -30

3. align equations -3x - 6y = -30

                               3x + 6y = 30

4. add the equations and you they cancel out, which means infinitely many solutions

You might be interested in
Safia opens a new savings account with a 2.25% simple interest rate. She deposits $3,500 and earned $3,696.88 total (with intere
Art [367]

Answer:

The money was left untouched for 2 years and 6 months or just 2.5 years

Step-by-step explanation:

In this question, we are asked to calculate the time taken for an amount deposited to earn a certain amount of interest.

Mathematically, simple interest can be calculated using the formula;

I = PRT/100

where I is the interest accrued which is 3696.88 - 3,500 = 196.88

P is the principal which is the amount deposited = 3,500 according to the question

R is the rate which is 2.25% according to the question

T is the time which we are to find

we can rearrange the formula making T the subject and we obtain the following;

T = 100I/PR

substituting the values listed above we have;

T = (100 * 196.88)/(3500 * 2.25)

T = 19688/7875

T = 2.5 years or 2 years 6 months

8 0
3 years ago
I’m not sure what to do..
Arlecino [84]

Answer:

x=291/76

Step-by-step explanation:

Convert:

1/2x(6x+ 1/2)=-0.8x+16-1.2

Remove parenthesis and move terms:

3x+1/4=-0.8x+14.8

Collect the like terms and convert:

3x+0.8x=14.8-1/4

Subtract the fractions:

3.8x=74/5-1/4

Divide both sides by 3.8:

3.8x=291/20

x=291/76

7 0
3 years ago
kelly lost 14.6 pounds over 4 weeks. if she lost the same each week, what was the weekly change in her weight.
Alisiya [41]

14.6 lbs/4 weeks = 3.65 lbs /week

she lost  3.65 pounds each week

6 0
3 years ago
Read 2 more answers
Quinn is playing video games at a virtual reality game room. The game room charges 20 dollars for every 30 minutes of play time.
Colt1911 [192]

Answer:

3000$

Step-by-step explanation:

20 x 150=3000

5 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP will give brainliest
sineoko [7]

Step-by-step explanation:

3n-5=(-8*6)+(-8*5n) distributive property

3n-5=-48-40n

3n+40n=-48+5 add property

43n=-43 add property

43n/43=-43/43 division property

n=-1

8 0
3 years ago
Other questions:
  • How do you estimate 358 divided by 3 using compatible numbers
    13·1 answer
  • The weights of a large number of miniature poodles are approximately normally distributed with a mean of 8 kilograms and a stand
    13·1 answer
  • Which number represents the sum of -8 and -i?
    7·1 answer
  • Find the equation of a line that has the same slope as y=9-9x and the same y-intercept as y=-10x-9
    10·2 answers
  • The sales tax on a table saw is $10.20. What is the purchase price of the table saw if the sales tax rate is 8.5%
    6·1 answer
  • 144 in
    13·2 answers
  • At the bookstore, Tim bought a magazine for $4, and five books that all cost the same amount. He spent a total of $129. Which eq
    13·1 answer
  • 8x^2+1/9
    11·1 answer
  • A computer and printer cost a total of 950$ The cost of the computer is three times the cost of the printer. Find the cost of ea
    11·1 answer
  • Solve for x x^2 + 6x + 1 = 0
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!