Step-by-step explanation:
m = (y2-y1)/(x2-x1)
= (2-4)/(-2+6)
= -2/4
= -1/2
now
y=mx+c
4=-1/2(-6)+c (you can take any x and y from the given two points. I took from (-6,4)
or,4= 3+c
therefore, c=1
now
y=mx+c
y= -1/2x+1
or, y = 1-x/2
7) Sarawong spent half of his weekly allowance on candy. To earn more money his parents let him wash the dog for $6.10. What is his weekly allowance if he ended with $11.40?
Answer:
$10.60
Step-by-step explanation:
Sarawong ends with $11.40, and we need to find his weekly allowance by working backward. First, we learn that he earned $6.10 of that total amount of money by washing the dog, so we can subtract the two values:
11.4 - 6.1 = 5.3
So, before washing the dog, Sarawong had $5.30. But he only received this after spending half of his weekly allowance, so $5.30 must be half of his weekly allowance. If we multiply $5.30 by 2, we should be able to find his weekly allownce.
5.3 × 2 = 10.6
Now, we can check our work. First, he spends half of his weekly allowance on candy. Half of 10.6 is 5.3, so he now has $5.30. Then, he earns $6.10 more by washing the dog. 5.3 + 6.1 = 11.4, which is the ending value. So, our work was correct! Hopefully that's helpful. :)
Can someone plz help :(((((
What is the area, in square inches, of the rectangle?
Answer:
What are the side lengths?
A knife is 3x the cost of a spoon9 spoons and 12 knives cost £82.80Work out the cost of 1 knife
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
i don't know but I think question 1 is 64
25 POINTS! Plz help me!
Answer:
2nd option
Step-by-step explanation:
The standard form of an exponential function is
y = a[tex]b^{x}[/tex]
Use points on the graph to find a and b
Using (0, 5 ) , then
5 = a[tex]b^{0}[/tex] = a
Then
y = 5[tex]b^{x}[/tex]
Using (1, 2 )
2 = 5[tex]b^{1}[/tex] = 5b ( divide both sides by 5 )
[tex]\frac{2}{5}[/tex] = b
Thus
f(x) = 5[tex](\frac{2}{5}) ^{x}[/tex] ← equation of graph
mr farmer rectangular land measures 2000 meters by 3000 meters. if he walks around the perimeter of his land, how far does he walk
Answer:
10000 meters
Step-by-step explanation
To find perimeter you add the length of each side of the shape. Since the land is a rectangle there are two pairs that are parrallel, being 2000 and 3000. Making the distance 2000 + 2000 + 3000+ 3000 = 10000
Hope this helps!
While shopping at his local home improvement store, Chen noticed that the directions for an extension ladder state, “This ladder is most stable when used at a 60° angle with the ground.” He wants to buy a ladder to paint a two-story house. How long does his ladder need to be in order to reach the top of the house if the house is 27 feet tall?
The length of the ladder needed to reach the top of the house is 31.2 feet.
Trigonometric ratio is used to show the relationship between the sides and the angles of a right angled triangle.
Let d represent the length of the ladder. Using trigonometric ratio:
[tex]sin(60)=\frac{27}{d} \\\\d=\frac{27}{sin(60)} =31.2\ feet[/tex]
The length of the ladder needed to reach the top of the house is 31.2 feet.
Find out more at: https://brainly.com/question/4326804
these are so confusing, can someone explain how to do this
Answer:
4
Step-by-step explanation:
x/2 +6 = 8
subtract 6 from both sides
x/2 = 2
multiply by the reciprocal of 1/2 which is 2. That cancels out the 2 on the x side and x is equal to 4
Hope that helps
Answer:
x = 4
Step-by-step explanation:
The left side of the equation has a variable term (x/2) and a constant term (6).
The right side of the equation has a constant term (8).
This is the form you expect to see for a "two-step" linear equation. It is solved in 2 steps.
Step 1:
Subtract the left-side constant from both sides.
x/2 +6 -6 = 8 -6
x/2 = 2 . . . . . simplify
Step 2:
Multiply both sides of the equation by the reciprocal of the coefficient of x. The coefficient of x is 1/2. Its reciprocal is 2/1 = 2. When you multiply both sides by 2, you get ...
2(x/2) = 2(2)
x = 4 . . . . . . simplify
_____
Additional comment
The idea of a multiplicative inverse (reciprocal) is that a number multiplied by its reciprocal is 1.
[tex]\dfrac{2}{1}\times\dfrac{1}{2}=\dfrac{2}{2}=1[/tex]
1 is the "identity element" for multiplication. That means whatever you multiply by 1 retains its original identity. Multiplying x by 1 gives x.
When we solve an equation of this sort, we use these properties of multiplication (inverse, identity element) to "get rid of" the coefficient of x.
As always, the rules of equality say that whatever you do to one side of the equation must also be done to the other side. So, when we multiply x/2 by 2, we must also multiply the other side of the equation by 2.
__
Don't let the presentation of the x-term throw you. It can be written several ways that all mean the same thing.
(1/2)x . . . . with or without the parentheses
0.5x
x/2
This is due in 20 minutes. Please help!!!
1. A store buys a t-shirt for $3 and sells it for $12. What percent did the store mark up the price?
2. Cost to store: $50. Markup: 10%. Selling price: $?
3. You are buying a new video game system. Which store should you buy the system from? (The picture)
4. A jacket costs $80. It is on sale for 35% off. What is the discount? $?
5. A suit costs $95. It is on sale for 20% off. How much are you saving? $?
6. A $120 pair of shoes is on sale for 35% off. What is the sale price? $?
7. You started making bracelets to sell to earn some money. If it costs you $2 to make each bracelet, how much should you charge for each one to make a 50% profit?
Answer:
1.400%
2. 55$
3. C
4. 28
5. 19
6. 78
7. 1$
A number is chosen uniformly at random from among the positive integers less than $10^8$. Given that the sum of the digits of the number is 9, what is the probability that the number is prime
Answer:
If the sum of the digits of a number is divisible by 9, then that number is divisible by 9. An..... sorry if this does not help :(
Step-by-step explanation:
The recipe for 4 people says I need 300g of sugar. I am making for 10 people. How much sugar do I need in g?
Answer:
750g
Step-by-step explanation:
300 divided by 4, for amount of sugar per person
you'll get 75
then multiply 75 by 10 for 10 people
you get 750g
What is the approximate area of the home including the balcony.
Answer:
LxWxH=A
Step-by-step explanation: multiply LxWxH=A
Olivia needs at least $625 to pay for a used road bike that she wants. She has $185 saved so
earn $60 per week doing odd jobs for her next-door neighbor. What is the minimum number
will need to work for her neighbor in order to purchase the bike?
Answer:
I think probably at least 8 weeks.
7+32−42÷2 what is it i need help pleaseee
Answer:
[tex]7+32-42\div 2 = 39 - 21 = 18[/tex]
Step-by-step explanation:
Can someone plz help Me?
Answer:
It’s A :D
Step-by-step explanation:
3 goes into 12 4 times
4 times 4 equals 16
so 16 can of soup
and then! 4 goes into 36 9 times
Click the picture to see inside! :3
Hope this helps :DDD
What is the equation of the line in standard form?
(2,2)
Step-by-step explanation:
You have to add them together and minus the negatives
For what value of x is line a parallel to line b?
Answer:
x = 22
Step-by-step explanation:
4x + 28 = 116 (corresponding angles are equal when two lines are parallel)
4x = 88
x = 22
Corresponding angles must be equal
[tex]\\ \tt\hookrightarrow 4x+28=116[/tex]
[tex]\\ \tt\hookrightarrow 4x=116-28[/tex]
[tex]\\ \tt\hookrightarrow 4x=88[/tex]
[tex]\\ \tt\hookrightarrow x=22[/tex]
I WILL GIVE 30 POINTS TO THOSE WHO FILL IN THE BLANK
Answer:
√366
Step-by-step explanation:
a^2 + b^2 = c^2
5 + 361 = 366
√366
I need help PLEASE ILL GIVE YOU BRAINLEST
Answer:
y= 0.75x + -0.50
A or B is what im guessing
Is 92.248 an integer? Yes or no
Answer:
NO no no non
Step-by-step explanation:
IHOPE THIS CORELRECT ANSWER
you travel 90 miles in 1.5 hours. find the speed you travel.
Answer:
60 mph
Step-by-step explanation:
The graph of a function is shown on the grid.
Answer:
B (0, -2)
Step-by-step explanation:
Since the line intercepts at -2 on the y-axis, -2 is the y-intercept.
Kieran buys a car for $8000 The following year he sells the car for $7500
Kieran membeli mobil seharga $8000 Tahun berikutnya dia menjual mobil seharga $7500
Loss :
= $ 8.000 – $7.500
= $ 500
then Loss is $500
#FromIndonesia
asking for some help
the given cube has a mass of 173 grams, what is it’s density
Answer:
I think the density is 4cm.
Hope that helps you.
Step-by-step explanation:
part 2 of Question please help me
and thank you for your help
1 tick represents 8 units
amanda is 25 years old. in 5 years she will be twice as old as simone how old i simone
Maggie's brother is 5 years younger than three times her
age. The sum of their ages IS 43.
How old is Maggie?
Answer:
Step-by-step explanation:
Let Maggie's age = x
The brother's age = 3x - 5
x + 3x - 5 = 43
4x - 5 = 43 Add 5 to both sides
4x - 5 + 5 = 43+5
4x = 48 Divide by 4
4x/4 = 48/4
x = 12
Maggie = 12
Brother = 3*12 - 5
Brother = 36 - 5
Brother = 31
If g(x) =3-2x, find g(-1) (show work)
Joseph is going to paint the panels of a fence. He is going to use the same repeating pattern for the entire fence. The rule is "orange, yellow, pink, green, purple." If there are 98 panels in the fence, how many will be painted green?
Answer:
19 panels are painted green
Step-by-step explanation:
95/5=19 and because there are 3 colors before green again we don't have to worry about the other 3 panels
if I’m wrong, I’m sorry. If I’m right, mark me brainlest!