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
just olya [345]
3 years ago
13

How do I do #12? Please show all work. Please help!

Mathematics
1 answer:
hammer [34]3 years ago
5 0

You have the ratio set up correctly:

2x+2/12 = x+3/21

Now cross multiply:

2x+2 * 12 = x+3 * 21

Simplify:

24x + 24 = 21x + 63

Subtract 24 from each side:

24x = 21x + 39

Subtract 21x from each side:

3x = 39

Divide both sides by 3:

x = 39/3

x = 13

You might be interested in
Which graph represents the solution set of the inequality Negative 9 greater-than x?
Kamila [148]

Answer:

de answer is A

Step-by-step explanation:

hope i helped

7 0
3 years ago
Read 2 more answers
Write the equation of the line that is parallel to the line and through the given point y=-2x+1 point (0,5)
marysya [2.9K]

Answer:

y = -2x+5

Step-by-step explanation:

y = -2x+1 is in the form y= mx+b where m is the slope and b is the y intercept

-2 is the slope

Parallel lines have the same slope so our new line will have the same slope

y = -2x+b

The point given is the y intercept (value when x is zero)

b = 5

y = -2x+5

5 0
3 years ago
Question 4
Ilia_Sergeevich [38]

Answer:

2

Step-by-step explanation:

Given

See attachment for chart

Required

Number of off days

To do this, we simply calculate the expected value of the chart.

This is calculated as:

E(x) = \sum x * f

Where

x = days

f = chances

So, we have:

E(x) = 0* 0.3 + 1 *0.2 + 2 * 0.25 + 3  * 0.2 + 4  * 0.02 + 5 * 0.01 + 6 * 0.01 + 7 * 0.01

E(x) = 1.56

E(x) \approx 2

3 0
2 years ago
Can someone please help me with # 2 #13 thanks show work how it's done, please
zavuch27 [327]

Problem 13

10p+10q factors to 10(p+q). If we apply the distributive property, we can distribute the 10 to each term inside (p and q) to get

10(p+q) = (10 times p)+(10 times q) = 10*p + 10*q = 10p+10q

so we get the original expression again. Here 10 is the GCF of the two terms.

--------------------------------------------------------------

Plug p = 1 and q = 2 into the factored form

10*(p+q) = 10*(1+2) = 10*(3) = 30

As a check, let's plug those p,q values into the original expression

10*p+10*q = 10*1+10*2 = 10+20 = 30

We get the same output of 30

6 0
3 years ago
How do you find the perimeter of the window to the nearest tenth. Half the widows radius is 20.
muminat

Answer:

Step-by-step explanation:

Bsbsbdvd devebehehevergrbrhrhrhjddududyZhhdbdbsgssgsggsUhfhd

7 0
3 years ago
Other questions:
  • HELP PLEASE!!!!! HELP
    12·2 answers
  • Which equation BEST represents the line of best fit for the scatterplot?
    7·2 answers
  • Find part “a”<br> Find part “b”
    15·1 answer
  • Is the graph of y=3/2x-4 paralel to the graph of y=-3/2x-4
    11·1 answer
  • 5(2y + 3)<br> can’t find any answers from this question
    10·2 answers
  • the biologic is expecting the number of salmon to raise during salmon season if the ratio stays the same and he expect 120 steel
    12·1 answer
  • What’s the inverse of the equation
    14·1 answer
  • Please help me ASAP!!<br> Determine the intercepts of the line.
    11·2 answers
  • CAN SOMEONE PLZ ANSWER THIS ITS DUE AT 11:59 APRIL 11 2021 AND ILL MARK U BRAINLIST
    13·1 answer
  • For problems 4-7, perform the indicated operation and reduce the answer to lowest terms.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!