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
PolarNik [594]
3 years ago
5

natalie uses a 15% off coupon when she buys a camera the original price off the camera is 45.00 how much money does natalie save

by using th ed coupon?
Mathematics
1 answer:
gulaghasi [49]3 years ago
8 0
You have to do 45 divided by 2. Hopefully there is not tax!
You might be interested in
Six years after a tree was planted, its height was 7 feet. Nine years after it was planted, its height was 16 feet. Which of the
pychu [463]
Considering that the grows at a constant rate we can form an equation where x = how many years after it was planted
and y = its height

Now we just need to find how many feet it grows each year. To do that we just need to compare its height from a certain age to another:
6 years after it was planted : 7 feet,
so x=6 and y = 7

9 years after it was planted: 16 feet
so x= 9 y=16

With thay we can conclude that in 3 years , the tree grew 9 feet. To discover how much the tree grow each year we just nee to divide 9 feet by 3 years which is 3 feet every year.

To write the equatopn now we just need to find the y-intercept which we can discover by setting x to 0:
If in 6 years after the tree was planted it is 7 feet long , we can discover how long it was when it was planted by subtracting 6 years of growth (The slope ) which is 3
7 - 6(years)×3(feet the tree grow each year)
7 - 18 = -11
The tree was -11 feet long when it was planted
which is our y-intercept
( I know it doesnt make sense , but if you apply to a graph it will make more sense )


Now we can make the equation
y = 3x -11
7 0
3 years ago
Helps ASAP please and I will give brainliest plssssss and pls answer correctly
masya89 [10]

Answer:

b

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
for what value of k, the line joining 3x-ky+7=0 is perpendicular to the line joining (4 ,3) and ( 5, -3).
Schach [20]

Answer:

  • k = 18

=========

<h2>Given</h2>

<h3>Line 1</h3>
  • 3x - ky + 7 = 0

<h3>Line 2</h3>
  • Passing through the points (4, 3) and (5, - 3)

<h2>To find</h2>

  • The value of k, if the lines are perpendicular

<h2>Solution</h2>

We know the perpendicular lines have opposite reciprocal slopes, that is the product of their slopes is - 1.

Find the slope of line 1 by converting the equation into slope-intercept from standard form:

<u><em>Info:</em></u>

  • <em>standard form is ⇒ ax + by + c = 0, </em>
  • <em>slope - intercept form is ⇒ y = mx + b, where m is the slope</em>

  • 3x - ky + 7 = 0
  • ky = 3x + 7
  • y = (3/k)x + 7/k

Its slope is 3/k.

Find the slope of line 2, using the slope formula:

  • m = (y₂ - y₁)/(x₂ - x₁) = (-3 - 3)/(5 - 4) = - 6/1 = - 6

We have both the slopes now. Find their product:

  • (3/k)*(- 6) = - 1
  • - 18/k = - 1
  • k = 18

So when k is 18, the lines are perpendicular.

4 0
2 years ago
What is the equation of the line whose graph is parallel to the graph of y=3x-10
TEA [102]
Hello,

y=3x+b is parallele to y=3x-10
In order to determine b, we must know something else.

3 0
3 years ago
How much do a dozen cookies weigh?
yaroslaw [1]
0.43 oz

                   Hope this helps...
7 0
3 years ago
Read 2 more answers
Other questions:
  • Is y=4 a function, a relation, or is it both?
    5·1 answer
  • In the united states, 13 out of every 20 cans are recycled. what is the percent of cans are recycled
    6·2 answers
  • Joey wants to collect 20 coins from foreign countries. If he has 3 coins so far, what percent of his collection is complete?
    7·2 answers
  • Sasha has 6 packages of balloons, each with 7 balloons. She opens one
    13·1 answer
  • Please help with number 12
    5·2 answers
  • If a/2 = b/3, then b/a = ?<br><br> A. 3/2<br><br> B. 2/3
    7·1 answer
  • RSM HW PLEASE HELPPPPPPPPPPPPP ASAP
    13·2 answers
  • PLSS HELP!! Pentagon JKLMN is similar to pentagon VWXYZ. What is the measurement of angle W?
    13·2 answers
  • Can someone help me with this? I don’t understand it.
    11·1 answer
  • I NEED HELP, PLEASE!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!