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
suter [353]
3 years ago
5

Please help me with #13

Mathematics
1 answer:
marysya [2.9K]3 years ago
8 0
I hope this helps you

You might be interested in
Tom bought n DVDs for a total cost of 15n - 2 dollars. Which expression represents the cost of each DVD?
Gala2k [10]

A. n ( 15.n - 2 )

eg n = 2

2 ( 15.2 - 2)

2 ( 30 - 2)

2 (18)

36 = 18 + 18

3 0
3 years ago
I think the answer is C) 4x=12 but I am not sure. Please help and explain!!
Dmitriy789 [7]

You are correct, C) 4x = 12.

So, if 4 people are eating 12 pieces of pizza, simply divide 12 by 4 and there's your answer!

12 / 4 = 3     Each person gets 3 slices of pizza.

8 0
4 years ago
Find the value of k such that lim-->4 (x^2+x-k)/(x-4) exists
7nadin3 [17]

Answer:

k=20

Step-by-step explanation:

when x approaches 4, the denominator x-4 approaches 0

if the denominator is 0, it means that this is invalid

if the function is a number over 0 when x=4, it represents a vertical asymptote, which means no limit

so the only way possible to let there be a limit is to let the function be 0/0 when we plug in x=4

so x^2 + x - k = 0 when x = 4

4^2 + 4 - k = 0 ==> 20 - k = 0 ==> k = 20

6 0
3 years ago
At the county fair, Darius can purchase 3 candy apples and 4 bags of peanuts for $11.33. He can purchase 9 candy apples and 5 ba
Ksenya-84 [330]
Let c represents the cost of a candy apple and b represents the cost of a bag of peanuts.

Darius can purchase 3 candy apples and 4 bags of peanuts. So his total cost would be 3c + 4b. Darius can buy 3 candy apples and 4 bags of peanuts in $11.33,so we can write the equation as: 

3c + 4b = 11.33   (1)

Darius can purchase 9 candy apples and 5 bags of peanuts. So his total cost would be 9c + 5b. Darius can buy 9 candy apples and 5 bags of peanuts in $23.56,so we can write the equation as: 

9c + 5b = 23.56   (2)

<span>Darius decides to purchase 2 candy apples and 3 bags of peanuts. The total cost in this case will be 2c + 3b. To find this first we need to find the cost of each candy apple and bag of peanuts by solving the above two equations.

Multiplying equation 1 by three and subtracting equation 2 from it, we get:

3(3c + 4b) - (9c + 5b) = 3(11.33) - 23.56

9c + 12b - 9c - 5b = 10.43

7b = 10.43

b = $1.49

Using the value of b in equation 1, we get:

3c + 4(1.49) = 11.33

3c = 5.37

c = $ 1.79

Thus, cost of one candy apple is $1.79 and cost of one bag of peanuts is $1.49.

So, 2c + 3b = 2(1.79) + 3(1.49) = $ 8.05

Therefore, Darius can buy 2 candy apples and 3 bags of peanuts in $8.05</span>
3 0
3 years ago
Which is a correct classification for the triangle?
sasho [114]

Answer:

acute

Step-by-step explanation:

8 0
4 years ago
Other questions:
  • What is the equation of a line that passes through the point (5, −4) and is parallel to the line whose equation is 2x + 5y = 10?
    12·1 answer
  • Change 46/6 into a whole number
    6·1 answer
  • Please please answer my question please ASAP
    6·2 answers
  • A 20-ft ladder leans against a building so that the angle between the ground and the ladder is 72 degrees. how high does the lad
    6·2 answers
  • 15 POINTS to solve this CONSTRUCTION.
    12·1 answer
  • Write an inequality to show how much more needs to be saved to reach $100?
    10·2 answers
  • Z to the eighth power + ? +144
    6·1 answer
  • Estimate the solution of the system of equations. Write the answer as an ordered pair.
    10·1 answer
  • 1. sean has 1 ⅛ sugar pies and 2 ²⁄₆ blueberry pies
    15·2 answers
  • 10⁴ metres at a speed of 2.5 km/h.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!