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Mekhanik [1.2K]
3 years ago
15

What is the answer? Please explain

Mathematics
1 answer:
sammy [17]3 years ago
7 0

Answer:

y = 7x - 48

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (6, - 6) and (x₂, y₂ ) = (8, 8)

m = \frac{8+6}{8-6} = \frac{14}{2} = 7, thus

y = 7x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (8, 8), then

8 = 56 + c ⇒ c = 8 - 56 = - 48

y = 7x - 48 ← equation of line

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Can someone smart please help me?
ollegr [7]
Hello! 

For a:

How I would do this, is I would first say if all 46 animals (heads) were chickens, how many legs would there be? Each chicken has 2 legs, so 46 * 2 = 92. The total amount of legs is 96 as stated in the question, so if all of the animals were chickens, the farmer would be 4 legs short.

Now to add rabbits into the equation. Rabbits have 4 legs, and chickens have 2. You want to find the difference between the two, because as you add rabbits to the animals the farmer has, then you have to take away chickens at the same time. 4-2 = 2, so for each rabbit you replace, you add 2 legs. 

Since the farmer is 4 legs short with all chickens, then you just divide that 4 by the 2 legs you add by replacing a chicken with a rabbit.

4 / 2 = 2 rabbits

So that means there are 2 rabbits. Since there are 46 heads in total, if 2 are rabbits, that means there are 44 chickens.

So there are 44 chickens and 2 rabbits.

b)

You can follow the same steps: I'm assuming all are child tickets for now:

3.05 * 100 = $305

And now you find how much money short you are.

498.6 - 305 = 193.6

Next, you find the difference in the ticket costs.

5.25 - 3.05 = 2.20

And you divide to find the number of adult tickets.

193.6 / 2.2 = 88

Since 100 tickets were sold, and 88 adult tickets were sold, that means 12 child tickets were sold.
7 0
3 years ago
You are constructing deck chairs that require 12 2/3 feet of lumber each. How many feet of lumber will you use to make 15 chairs
Mrrafil [7]
As each chair needs 12.6667 feet lumber.So 15 chairs will need 15*12.6667=190.0005 lumber
5 0
3 years ago
Someone help me please
gogolik [260]

x/5 = 6/15
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answer
x = 2 ft

y/10 = 6/15
15y = 60
y = 4

answer
y = 4 ft


3 0
3 years ago
Read 2 more answers
Hugo works in a shop.
slava [35]

Answer:

£111

Step-by-step explanation:

Money earned on saturday: 9*7=63

Money earned on sunday:4*9*1\frac{1}{3}=48

48+63=111

plz mark branliest

6 0
3 years ago
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From stock A
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5 0
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