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
exis [7]
3 years ago
11

Literal Equations c-b/a=1

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
6 0

Equation for a

a= b/c - 1

Equation for b

b= ca - a

Equation for c

c=  b/a + 1

You might be interested in
Solving Systems by Elimination
Karolina [17]

Answer:

x=-2, y=-3. (-2, -3).

Step-by-step explanation:

-5x+4y=-2

2x-7y=17

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

2(-5x+4y)=2(-2)

5(2x-7y)=5(17)

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

-10x+8y=-4

10x-35y=85

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

-27y=81

y=81/-27

y=-3

2x-7(-3)=17

2x+21=17

2x=17-21

2x=-4

x=-4/2

x=-2

8 0
3 years ago
Which of these cannot represent the lengths of the sides of a right triangle?
Sholpan [36]
<h3>Answer: Choice D. 8m, 9m, 10m</h3>

==================================

Explanation:

If a = 8 and b = 9 are the two legs of a triangle and c = 10 is the hypotenuse, then

a^2 + b^2 = c^2

8^2 + 9^2 = 10^2

64 + 81 = 100

145 = 100

We get a false equation as 145 and 100 are two different values. So the original equation is false when (a,b,c) = (8,9,10)

By the converse of the pythagorean theorem, we have proven that this particular triangle is not a right triangle

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

Contrast this with something like choice A where we have a = 3, b = 4, c = 5 leading to

a^2 + b^2 = c^2

3^2 + 4^2 = 5^2

9 + 16 = 25

25 = 25

we get a true equation so a triangle with sides 3,4,5 is a right triangle. Choices B and C follow a similar path.

4 0
3 years ago
Read 2 more answers
two-fifths of a number is decreased by three.find the value of the expression if the number is twenty five
djyliett [7]
The expression would be written as:

\frac{2}{5}n-3

N is any number. This expression means two-fifths of a number, subtract three. Now substitute 25 for n.

\frac{2}{5}(25)-3
=10-3
=7
7 0
3 years ago
Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit
blondinia [14]

Answer:

Step-by-step explanation: For part 1, it makes sense that the form is y = m + c. So, it is a simply rearrangement of the equation to start with, in order to make  the subject. This is the graph in slope-intercept form. From here it is easy to see that gradient  = and the y-intercept = 490. The easiest way to draw a straight-line graph, such as this one, is to plot the y-intercept, in this case (0, 490), then plot another point either side of it at a fair distance (for example substitute  = -5 and  = 5 to procure two more sets of co-ordinates). These can be joined up with a straight line to form a section of the graph, which would otherwise extend infinitely either side - use the specified range in the question for x-values, and do not exceed it (clearly here the limit of -values is 0 ≤ x ≤ 735, since neither x nor y can be negative within the context of the question - the upper limit was found by substituting  = 0). In easy terms, the graph of this function represents how the value of the function varies as the value of x varies. Looking back at the question context, this graph specifically represents how many wraps could have been sold at each number of sandwich sales, in order to maintain the same profit of $1470. When the profit is higher, the gradient is not changed (this is defined by the relationship between the $2 and $3 prices, not the overall profit) - instead the -intercept is higher, therefore we have gleaned that the new y-intercept is 531. Clearly I cannot see the third straight line. However the method for finding the equation of a straight line graph is fairly simple:

1. Select two points on the line and write down their coordinates

2. The gradient of the line =

3. Find the change in  (Δ

4. Find the change in  (Δ

5. Divide the result of stage 3 by the result of stage 4

6. This is your gradient

7. Take one of your sets of coordinates, and arrange them in the form , where your  is the gradient you just calculated

8. There is only one variable left, which is  (the y-intercept). Simply solve for this

9. Now generalise the equation, in the form , by inputting your gradient and y-intercept whilst leaving the coordinates as  and

For example if the two points were (1, 9) and (4, 6):

Δ = 6 - 9 = -3

Δ = 4 - 1 = 3

=  = -1

I choose the point (4, 6)

6 = (-1 * 4) + c

6 = c - 4

c = 10

Therefore, generally,

Within the context of the question, I imagine the prices of the two lunch specials will be the same in the third month and hence the gradient will still be  - this means steps 1-6 can be omitted. Furthermore if the axes are clearly labelled, you may even be able to just read off the y-intercept and hence dispose with steps 1-8!

4 0
3 years ago
Two points located on jk are j (-1,-9) and k (5,3). What is the slope of jk?
Ivenika [448]

Answer:

2

Step-by-step explanation:

slope of line= \frac{y1 - y2}{x1 - x2}

slope of JK

=  \frac{3 - ( - 9)}{5 - ( - 1)}  \\  =  \frac{3 + 9}{5 + 1}  \\  =  \frac{12}{6}  \\  = 2

7 0
3 years ago
Read 2 more answers
Other questions:
  • Obasi earns 150% of his regular hourly wage while working overtime. What fraction of his regular hourly wage does Obasi earn whi
    10·2 answers
  • The larger square garden at Volterra Hall has sides twice as long as the smaller square garden. Together the gardens cover 18,00
    10·1 answer
  • Lisa made $286 for 13 hours of work. at the same rate, how many hours would she have to work to make $242 ?
    14·1 answer
  • Buses to Aintree leave the station every 25 minutes
    5·1 answer
  • A laboratory tested 85 chicken eggs and found that the mean amount of cholesterol was 190 milligrams. Assume that the sample sta
    13·1 answer
  • for every girl taking classes at the martial arts school there are 3 boys who are taking classes at the school. if there are 236
    11·1 answer
  • Norma keeps immaculate records on her car. Each time she fills up her car with gas she records the odometer reading and the numb
    5·1 answer
  • What's the domain and range​
    8·1 answer
  • If you know my other accont pierce4409 this is me
    10·1 answer
  • Given g(x)=-4x+4g(x)=−4x+4, find g(3)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!