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
saveliy_v [14]
3 years ago
10

How do i do this and tell me how u got the answer

Mathematics
1 answer:
EastWind [94]3 years ago
3 0
Substitute.
2x+(2x -15) = -3

4x -15 = -3
Add 15 to both sides

4x = 12

Divide by 4

X=3

2(3) + y = -3

6+y=-3
-6 from both sides
Y=-9

(3,-9)
You might be interested in
Find the doubling time of an investment earning 7% interest if interest is compounded continuously
Alex

Answer:

The doubling time of this investment would be 9.9 years.

Step-by-step explanation:

The appropriate equation for this compound interest is

A = Pe^(rt), where P is the principal, r is the interest rate as a decimal fraction, and t is the elapsed time in years.

If P doubles, then A = 2P

Thus, 2P = Pe^(0.07t)

Dividing both sides by P results in 2 = e^(0.07t)

Take the natural log of both sides:  ln 2 = 0.07t.

Then t = elapsed time = ln 2

                                       --------- = 0.69315/0.07 = 9.9

                                         0.07

The doubling time of this investment would be 9.9 years.

5 0
3 years ago
What is the seventh term of a geometric sequence that has a common ratio of –3 and the first term is –4?
rjkz [21]
An= A1 r ^(n-1)
An= -4 (-3)^(n-1)
An= -4 (-3)^(7-1)
An= -4 (729)
An= -2916

I think this is right :)
4 0
3 years ago
Find the number between 30 and 70 that is divisible by 8, and when divided by 5 has a remainder of 1
monitta
30+70÷8÷5-1=
=30.75
hope this helps
7 0
3 years ago
In the figure shown, line AB is parallel to line CD.
disa [49]

Answer:

Part A: <em>x = </em>55°

Step-by-step explanation:

<em>Part A Work:</em>

x + 65 = 120

<em>Part B Work:</em>

<em> </em>The transversal passes through the 2 conforming lines which allows you to use rules such as opposing interior angles. <em> </em>

<em> </em>

<em>hope this helps!</em>

<em>- Kiniwih426</em>

<em />

<em />

<em />

<em />

<em> </em>

<em />

4 0
3 years ago
Help!!
yKpoI14uk [10]

Answer:

well....

Step-by-step explanation:

trow the apple

7 0
2 years ago
Other questions:
  • Can anyone help me with this math question it’s difficult?
    10·1 answer
  • Suppose that F(x) = x2 and G(x) = 2x2 – 5. Which statement best compares
    13·2 answers
  • Andrea has a savings account with $80 that earns 2% interest per
    5·1 answer
  • eight students reported the number of movies they saw in the past year this is what they reported 5, 6, 4, 12, 6, 17, 19 find th
    15·1 answer
  • Dolly wants to buy a hat that costs $25.00. She has $30.00 with her she also wants to buy a bracelet that costs $10.00. If Dolly
    5·1 answer
  • Test the set of polynomials for linear independence. If it is linearly dependent, express one of the polynomials as a linear com
    10·1 answer
  • Help plz I’m stuck on this
    15·1 answer
  • Which symbol correctly compares the fractions below?<br> 1/8 ? 1/2
    6·2 answers
  • 7 time 45 please i need help this for the class
    8·1 answer
  • 1.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!