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
castortr0y [4]
3 years ago
8

Solve each system of equations below by substitution

Mathematics
1 answer:
Anna007 [38]3 years ago
6 0

Answer:

numero uno, ok

Step-by-step explanation:

You might be interested in
The sum of 5 times a number and <br> minus −​2, plus 7 times a​ number
Olenka [21]

Answer:

12x + 2

Step-by-step explanation:

Let the number be represented by x.

Then five times the number = 5*x

Seven times the number = 7*x

Sum of 5 times the number minus -2 = \[5*x - (-2)\] = \[5x +2\]

Adding seven times the number to this expression yields, \[5x+2+7x\]

\[= (5+7)x+2\]

\[= 12x+2\]

So the simplified expression corresponds to 12x + 2.

6 0
3 years ago
HELP HURRY WILL GIVE BRAINLIEST
rusak2 [61]

Answer:

That's all you're doing is writing the equation for two lines and finding out where they intersect. The slope is how much the price is increasing or decreasing and the y-intercept is where the price is starting at.

x = number of hours

y = mx + b = 0.12(x + 3) + 15.21     {It's (x + 3) because we have to add the 3 hours between 9 and noon}

y = mx + b = -0.11x + 15.96       {The slope is negative because the price is decreasing}

Set them equal to each other

0.12(x+3) + 15.21 = -0.11x + 15.96

Now solve for x

0.12x + 0.36 + 15.21 = -0.11x + 15.96

0.12x + 15.57 = -0.11x + 15.96

0.12x + 0.11x = 15.96 - 15.57

0.23x = 0.39

x = 0.38 / 0.23 = 1.7 hours

Convert 0.7 into minutes

0.7 hours * (60 min / 1 hour) = 42 min

So the prices are the same 1 hour and 42 min after noon, which is 1:42 PM

Step-by-step explanation:

3 0
2 years ago
In order to find the y-intercept of a quadratic function, you should ___________.
dangina [55]
Your answer is C cause to corresponds to it!
8 0
3 years ago
You buy a package of 12 pencils for $2.64. Write this rate as a unit rate.
andrew-mc [135]

Answer:

0.22 per

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
( x + y + 2 ) ( y + 1 ) , ILL GIVE BRAINLIST
Zigmanuir [339]
I think it’s D.y2 +xy+x+3y+2

(Sorry if I’m wrong)
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the 11th term of the sequence 1,2,4,8,16
    5·2 answers
  • Can you solve this question for me?
    12·2 answers
  • Simplify -4z+2y-y+-18z<br> a.-22z+y<br> b.-14z+2<br> c.3y+22z<br> d.y +14z
    14·1 answer
  • the Circle fit in a square with a side of 12 inches what is the approximate area of the shaded region between the square in the
    7·2 answers
  • Add 5 to me. Then divide by 7. If you add 12 and then subtract 7 you get 10. What number am I
    12·2 answers
  • Look at the image and answer You ONLY GET POINTS FOR ANSWERING CORRECTLY ​
    13·1 answer
  • Alice takes 6 cups of flour to make 4 loaves of bread.What is the ratio of loaves to flour
    14·1 answer
  • I don’t understand if anyone can explain?
    13·1 answer
  • What is the answer <br> help
    10·1 answer
  • The probability that a graduate of the Faculty of Finance will defend the diploma “excellent” is 0.6. The probability that he wi
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!