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
butalik [34]
2 years ago
8

2x + y = 15 x + y = 10​

Mathematics
1 answer:
Artyom0805 [142]2 years ago
3 0

Answer:

2x+y=15x+y=10

Consider the first equation. Subtract 15x from both sides.

2x+y−15x=y

Combine 2x and −15x to get −13x.

−13x+y=y

Subtract y from both sides.

−13x+y−y=0

Combine y and −y to get 0.

−13x=0

Divide both sides by −13. Zero divided by any non-zero number gives zero.

x=0

Consider the second equation. Insert the known values of variables into the equation.

15×0+y=10

Multiply 15 and 0 to get 0.

0+y=10

Anything plus zero gives itself.

You might be interested in
Prove that the two circles shown below are similar.
jolli1 [7]

Answer:

They have a scale factor of 2

They are both the same shape

The big circle has a radius of 4 and the small circle has a radius of 2. You divide the bigger circle by the smaller circle. 4/2=2

5 0
3 years ago
Read 2 more answers
Can someone pls help me with this question. Ill give brainliest!!
creativ13 [48]

Answer:

  • Keep plugging in the points and see the ones that work, for example, (-1,7)
  • y=5x+12\\(7)=5(-1)+12\\7=7 true, so select it
  • Keep doing that for the rest of them , some like (3,15) won't work so you just have to keep testing each point.
5 0
2 years ago
Read 2 more answers
Use the system of equations to answer the questions.
kap26 [50]
The value of x is 16/7

the value of y is 8/7
4 0
3 years ago
The amoebas on a petri dish is doubling every 5 minutes. If there are currently 8 amoebas on the dish, how many will there be in
pychu [463]

Answer:

32,768.

Step-by-step explanation:

There are 12 lots of 5 minutes in 1 hour.

The equation  is 8*(2^12)

= 8 * 4096

= 32,768.

3 0
2 years ago
Vanessa deposits $24,000 into each of two savings accounts. Account I earns 2. 4% interest compounded annually. Account II earns
ikadub [295]

The sum of the balances of these accounts at the end of 5 years is given by: Option B: $53,901.59 (approx)

<h3>How to calculate compound interest's amount?</h3>

If the initial amount (also called as principal amount) is P, and the interest rate is R% per unit time, and it is left for T unit of time for that compound interest, then the interest amount earned is given by:

CI = P(1 +\dfrac{R}{100})^T - P

The final amount becomes:

A = CI + P\\A = P(1 +\dfrac{R}{100})^T

<h3>How to calculate simple interest amount?</h3>

If the initial amount (also called as principal amount) is P, and the interest rate is R% annually, and it is left for T years for that simple interest, then the interest amount earned is given by:

I = \dfrac{P \times R \times T}{100}

For the considered case, we're given that:

  • Initial amount in both accounts deposited = $24,000 = P
  • Type of interest: Compound interest in first account and simple interest in second account
  • Unit of time: Annually
  • Rate of interest = 2.4% annually = R
  • Total unit of time for which amount is to be calculated: 5 years = T

In first account, the final amount at the end of 5 years is evaluated as:

A = 24000(1 + \dfrac{2.4}{100})^4 = 24000(1.024)^4  \approx 27021.59\: \rm (in \:  dollars)

In second account,  the final amount at the end of 5 years is evaluated as:

A = 24000 +  \dfrac{24000 \times 2.4 \times 5}{100} = 24000 + 2880 = 26880 \text{\: (in dollars)}

Total amount after 5 years in these accounts = 27021.59 + 26880 = 53901.59 (in dollars)

Thus, the sum of the balances of these accounts at the end of 5 years is given by: Option B: $53,901.59 (approx)

Learn more about compound interest here:

brainly.com/question/11897800

4 0
2 years ago
Other questions:
  • Help for points and legit answers please
    6·1 answer
  • Do any of you guys know the answer to this problem: 4 2/3 -3 1/3
    5·2 answers
  • What is the answer to this question please help
    15·1 answer
  • MAJORR HELP!!!
    13·1 answer
  • Please answer this correctly
    15·1 answer
  • Find the value of a and b
    11·1 answer
  • Pls help
    15·2 answers
  • HELPPPPP!!!!!!!!!!!!!!!!!!!
    13·2 answers
  • Cho tam giác ABC vuông tại C, biết : Góc A = 50 độ. Tính góc B
    8·2 answers
  • Find the perimeter of the window to the nearest hundredth.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!