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
____ [38]
2 years ago
13

Use an equation to find the value of k

Mathematics
1 answer:
JulijaS [17]2 years ago
7 0

Answer:  k=143

Step-by-step explanation:

Let's start with the standard form of a linear equation:  y = mx + b, where m ios the slope and b is trhe y-intercept (the value of y when x=0).  We know the slope, so:

y = -15x + b

We can find the y-intercept, b, by using the one given point (6,-7) in the equation and solve for b:

y = -15x + b

-7 = -15(6) + b

-7 = -90+b

b = 83

The equation is y = -15x + 83

Use the x value of (-4,k) to find y, which will be k.

y = -15x + 83

y = -15(-4) + 83

y = 60 + 93

y = 143

k is 143

You might be interested in
PLEASE HELP FAST
Romashka-Z-Leto [24]

Answer:

504 in3

Step-by-step explanation:

I did the I-Ready too.

5 0
2 years ago
Write an algebraic expression for each verbal expression <br><br> Nine divided by x
Gre4nikov [31]

Answer:

9÷x is the correct answer

5 0
3 years ago
What is the area of the trapezoid?
Maslowich
<h3><u>Given Information :</u></h3>

  • Length of parallel sides = 60 ft and 40 ft
  • Height of the trapezoid = 30 ft

<h3><u>To calculate :</u></h3>

  • Area of the trapezoid.

<h3><u>Calculation :</u></h3>

As we know that,

\bigstar \: \boxed{\sf {Area_{(Trapezium)} = \dfrac{1}{2} \times ( a + b) \times h}} \\

  • a and b are length of parallel sides.
  • h denotes height.

<em>S</em><em>u</em><em>b</em><em>s</em><em>t</em><em>i</em><em>t</em><em>u</em><em>t</em><em>i</em><em>n</em><em>g</em><em> </em><em>valu</em><em>es</em><em>,</em><em> </em><em>we</em><em> </em><em>get</em><em> </em>:

\longmapsto Area = \sf \dfrac{1}{2} × ( 60 + 40 ) × 30 ft\sf ^2

\longmapsto Area = \sf \dfrac{1}{2} × 100 × 30 ft\sf ^2

\longmapsto Area = 1 × 100 × 15 ft\sf ^2

\longmapsto Area = 100 × 15 ft\sf ^2

\longmapsto <u>Area = 1500 ft</u>\sf ^2

Therefore,

  • Area of the trapezoid is <u>1500 ft\sf ^2</u>

6 0
2 years ago
14) Simplify: -(16 - 5x) A) 5x - 16 B) 5x + 16 C) -5x - 16 D) - 5x + 16
VLD [36.1K]

Answer: 5x-16

<u>Switch operations</u>

Before: -(16 - 5x)

After: 5x-16

Before you switch operation you remove the subtraction sign where -(16) is.

5 0
3 years ago
Please hurry!
KengaRu [80]

A) Because the 80 is by itself that would be the start up fee.

B) We are told x is the number of months. Since the X is being multiplied by 30, we know that would be the total monthly cost. This is being added to the 80, which does not have an exponent, so we know this is a single cost, which would be the start up fee.

C) Copying the same format as the given equation above, change the numbers:

f(x) = 20 + 35x

D) I used the same format as the first equation, which meant replacing the start up cost from the original one ( 80) with the start up of the new one (20). Then I changed the monthly cost from the original one (30) with the monthly cost of the new one (35).

E) Replace x in each equation with 8 and calculate the cost of each:

80 + 30(8) = 80 + 240 = $320

20 + 35(8) = 20 + 280 = $300

The second club (club B) is the cheaper option for her.

4 0
3 years ago
Other questions:
  • The heights of 200 adults were recorded and divided into two categories. Which two-way frequency table correctly shows the margi
    6·1 answer
  • A stone dropped into a still pond sends out a circular ripple whose radius increases at a constant rate of 3.5 ft/s. (a) how rap
    15·1 answer
  • Can you answer this it’s urgent please hurry and answer I really need help
    11·2 answers
  • Which triangles could not be similar to triangle ABC ? triangle a b c where angle b is a right angle. side a b is 15 cm. side b
    5·1 answer
  • NEED ANSWERS AND EXPLANATION ASAP!!!
    10·1 answer
  • In which year did the population grow the fastest ? Justify your answer using the average rate of change
    13·1 answer
  • HELP! ASAP!!!! <br><br> Use a calculator to solve the equation.<br><br><br> −9.5x + 0.88 = −6.72
    9·1 answer
  • Multiplication with exponents confuses me..
    14·1 answer
  • Write the formula for
    9·1 answer
  • carol had a birthday party at a local pizza restaurant the bill came 54.80 not including tip to be 15% how much whould that add
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!