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
kvv77 [185]
3 years ago
5

Solve the system of equations by the substitution method.

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
5 0

Answer:

(2,5) -- that is, x is 2, and y is 5, so it would be choice A.

Step-by-step explanation:

5(2x+1)-7x=11

10x+5-7x=11

3x=6

x=2

y=2(2)+1=5

You might be interested in
use the distributive property to remove parentheses. Simplify your answer as much as possible. 1/2(4y+7)
Anna007 [38]
1/2(4y+7)

Use the distributive property. a(b+c)= ab+ac 

1/2*4y= 2y

1/2*7= 3.5

2y+3.5 <---- simplified expression

I hope this helps!
~kaikers


7 0
3 years ago
Read 2 more answers
The work of a student to solve the equation 2(5y − 2) = 12 + 6y is shown below:
jolli1 [7]
We know that Step 1 is correct, because it is just a restatement of the equation. Therefore, we can eliminate Step 1:

2(5y – 2) = 12 + 6y

In Step 2, the student tried using the Distributive Property. The Distributive Property can be written as one of the two following formulas:

a(b + c) = ab + ac
a(b – c) = ab – ac

In this case, we'll use the second formula. Substitute any known values into the equation above and simplify:

2(5y – 2) = 2(5y) – 2(2)
2(5y – 2) = 10y – 4

In Step 2, the student calculated 2(5y – 2) to equal 7y – 4. However, we have just proven that 2(5y – 2) is equal to 10y – 4.

The student first made an error in Step 2, and the correct step is:

Step 2: 10y – 4 = 12 + 6y

I hope this helps!
8 0
3 years ago
How many times does 27 go into 890
Luba_88 [7]
32.96, to get this answer, you have the divide 890 by 27 
5 0
3 years ago
The price of an item yesterday was $140. Today, the price fell to $119. Find the percentage decrease.
34kurt

Answer:

-15%

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Original price of a hotel: $240.00 per night.
lawyer [7]

Answer:

$ 929

Step-by-step explanation:

Given: Original price of stay in hotel= $240 per night

           Discount= 25%

           Total taxes and fee = 29%

Now, finding the price of stay for four night.

Using unitary method to solve:

As we know original price of hotel stay per night is $240

∴ Price of four night stay at original price is 240\times 4 = \$ 960

Next, 25% discount given on the price of four night stay.

∴ 960 - \frac{25}{100} \times 960 = 960 - 240

= \$ 720

∴Price of four night hotel stay after discount is \$ 720

Now, 29% taxes and fees been added to the price.

Price of hotel stay after discount + Taxes paid.

720 + ( \frac{29}{100} \times 720) = 720 + 209

= \$ 929

∴ \$ 929 is the price to be paid for four night stay at hotel after discount and taxes.

5 0
4 years ago
Other questions:
  • A triangle with side lengths of 32, 60 and 68 is a right triangle?<br> true or false
    7·2 answers
  • When any number is multiplied by 6 and the digits of the answer are added the sum will be divisible by 6?
    13·1 answer
  • (5) • (-9).(-2)<br> i need step by step
    9·1 answer
  • Help me please!!!!!!!!!
    13·1 answer
  • Determine if the sequence below is arithmetic or geometric and determine the
    5·1 answer
  • A city's population is currently 150,500. If the population doubles every 62 years, what will
    11·1 answer
  • Twice a number decreased by four is greater than ten, what numbers satisfy this condition?
    7·2 answers
  • I need help with this ​
    8·1 answer
  • F(x)=3x-1 and g(x)=-2x+5
    10·1 answer
  • Write an equation of the line with a slope of 0 and y -intercept of 5 .<br><br> y =
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!