Again, could I please have some help with an explanation? And if possible, could someone explain basic set notation to me?
Answers
Related Questions
To solve the equation x-9 = 15, you would...
Answers
Answer:
Actually, i believe it is A, because first, you need to get rid of the -9, so you need to add. That would leave x = 24 which would be the correct answer.
Step-by-step explanation:
It may not look like a negative 9, but its part of subtraction. Its just how it works.
Examine the following diagram:
3 lines intersect a line to form 8 angles. Angle 5 is adjacent to angle 4.
Which angle is adjacent to ∠4?
A: ∠2
B: ∠3
C: ∠5
D: ∠8
Answers
Answer:
c
Step-by-step explanation:
The required angle that is adjacent to ∠4 beside ∠5 is given as ∠3. Option B is correct.
What is the triangle?The triangle is a geometric shape that includes 3 sides and the sum of the interior angle should not be greater than 180°
here,
When the figure will be constructed, we will see that there will be 3 adjacent angles to ∠4, as ∠1, ∠3, and ∠5 which share the common line and are present in the adjacent positions.
Thus, the required angle that is adjacent to ∠4 beside ∠5 is given as ∠3. Option B is correct.
Learn more about triangles here:
https://brainly.com/question/2773823
#SPJ6
help i suck at math
A b c or d on all of them
Answers
Can someone please help me
Answers
25. -3 - 4 - 1 = -8
26. 12 - 5 + 3 = 10
27. 10 - 7 + 6 = 9
PLZ HELP im lost in this question (30) points
Answers
Answer:
The cost of the avocadoes is dependent because it relies on the number of avocados. The number of avocados is independent because it can stand alone. So the costs are dependent and the numbers (1, 2, 3, 4, 5) are independent. c= 1.25a is neither dependent or independent but is put in there because it can be an equation used to solve how much the cost is for a number of avocados.
Step-by-step explanation:
This question has three parts. Answer the parts in order.
Part 1
Sam is 8 years younger than his brother Steve. He is also half as old as Steve.
Select two equations of a system that can be solved to find both ages.
Answers
Answer:
Step-by-step explanation:
B and A
And his brothers age = x
If y = x*(1/2)
And y = x - 8
x - 8 = x/2
Cross multiply
2(x - 8) = x
2x - 16 = x
Collect like terms
2x - x = 16
x = 16
Hence, if y = x/2
y = 16/2
y = 8
Check:
y = x/2
8=16/2
8 = 16
Please I neeed help
Answers
Answer:
It shows up as a decimal and a fraction
Step-by-step explanation:
A baker made 280 cookies to sell. Each cookie is a different type.
1/4 of the cookies are chocolate chip.
3/8 are sugar cookies.
1/5 are oatmeal cookies.
The rest of the cookies are peanut butter.
How many peanut butter cookies did the baker make?
Answers
Answer:
Step-by-step explanation:
280*1/4=70 chocolate chip
280*3/8=105 sugar
280*1/5=56 oatmeal
70+105+56=231
280-231=49 peanut butter
A state income tax is 9% of any amount earned over $15,000. What state income tax does a person earning $24,500 pay?
A. $1,350 B. $855 C. $2,205 D. $650
Answers
Answer:
the answer is C. $2,205
Which ordered pair is a solution to the system of linear equations Negative 4 x + y = 8 and x minus 5 y = 17?
(–4, –3)
(–4, 3)
(–3, –4)
(–3, 4)
Answers
Answer - (-3, -4)
The solution to the linear equations will be ( -3, -4 ).
What is linear equation?The equation whose highest degree of the variable used in the equation is 1 is called linear equation.
For example 12x+5y=19 is a linear equation.
We have,
- 4x + y = 8 .....(i)
x - 5y = 17 .....(ii)
Now,
Rewrite equation (ii) ,
x - 5y = 17
⇒ x = 5y + 17 .....(iii)
Now substitue this value of x in equation (i) i.e. - 4x + y = 8
We get,
- 4(5y + 17) + y = 8
- 20y - 68 + y = 8
- 19y - 68 = 8
- 19y = 8 + 68
-19y = 76
⇒ y = - 4
So, we have a value of y now substitute this equation (iii),
We get,
x = 5(-4) + 17
x = - 20 + 17
x = - 3
So,
The solution to the given linear equations is ( -3, -4 ).
Learn more about linear equations here:
https://brainly.com/question/11897796
#SPJ2
Follow the steps to solve the equation using the algebra tiles. −4x + (−3) = –x + 3. 1. Add 4 positive x-tiles to both sides and create zero pairs. 2. Add 3 negative unit tiles to both sides and create zero pairs. 3. Divide the unit tiles evenly among the x-tiles. x =
Answers
First take negative 4 and add it to both sides to get -3=3x+3
Then subtract 3 from both sides to get -6=3x
next divide -6 by 3x to get x= -2
Answer:
-2
Step-by-step explanation:
:)))
(03.07A LC) The coordinate grid shows the graph of four equations: A coordinate grid is shown from negative 12 to positive 12 on the x axis and also on the y axis. Line A passes through the ordered pairs negative 3, 4 and 9, negative 2. Line B passes through the ordered pairs 2, 8 and 8, negative 8. Line C passes through the ordered pairs negative 3, negative 4 and 4, 6. Line D passes through the points 2, negative 2 and 5 and 6. Which set of equations has (3, 1) as its solution?
A and B
C and D
B and D
A and D
Answers
Answer:
A & D
Step-by-step explanation:
Answer:
D) A and D
Step-by-step explanation:
Hope I helped
Have a great day
Simplify the expression 7(a−3+4b).
Answers
Answer: 7a -21 +28b
Step-by-step explanation:
Give the reciprocal for 7
Answers
Answer:
0.14286
Step-by-step explanation:
N/A
help me i beg you i don't get this kind of questions (20) points
Answers
X^2 on the bottom row would be 4
X^3 on the bottom row would be 8
Washington Middle School sold 500 tickets to the annual musical production for Friday night. If the tickets sold for Friday night were only 40 percent of the total tickets sold, how many total tickets were sold for the production?
Answers
Answer:
200
Step-by-step explanation:
500x.4
Answer:
1,250 tickets
Step-by-step explanation:
Supriya is decorating her bedroom. She plans to hang strings of twinkle lights all the way around her walls. She measures the walls and finds she will need 363636 meters of lights.
Which measurement did Supriya find?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Perimeter
(Choice B)
B
Length
(Choice C)
C
Area
Answers
Given the graph below write the equation of the line.
y = 2 + 2
y = -2x
y = 2x + 8
y = 0x + 8
Answers
Answer:
y = 2x+8
Step-by-Step Explanation:
The equation should be in the form of y=mx+b
So you already know it's not A. Also you already know it's not D because the line goes at an angle, if "m"(slope) was 0 then the line would be straight horizontal or straight vertical. So that leaves B and C. And finally you know it's not B because the line is going in the positive direction not negative, so the slope has to be positive, also "b" in the equation is the y-intercept, and that's where the line intersects with the y-axis, and you can see that the line intersects at 8 on the graph. Therefore, the answer is C, y=2x+8
Hope this helps!! :)
2x+8
Ming incorrectly says that this product is 4/63.
-(-4/9) · (-1/7)
a. What is the correct product?
b. What error could Ming have made?
Answers
Answer: -4/63
Step-by-step explanation: he put a positive sign instead of a negative in the 4
a. The correct product is -4/63.
b. Ming forgot to distribute two negative signs on the first term.
Sign changes when we do arithmetic operations ?(-,-) = +. (+,+) = +. (-,+) = -. (+,-) = -.
For example -: 6 + (-3) here negative sign of 3 will distribute (+,-) and the end result will be negative ⇒ 6 - 3 = 3
According to the given question
Ming has given a product -(-4/9) · (-1/7) and he mistakenly said it is 4/63.
The given product is -(-4/9) · (-1/7)
= (4/9).(-1/7)
= -4/63.
Ming didn't notice that on the first term two negative sign will distribute and make it positive and then multiplying it with a negative number will result in a negative number.
Learn more about sign conventions here :
https://brainly.com/question/15568951
#SPJ2
If f(1)=5, f(2)=8 and f(x)=ax+bx+2, what is the value of f(3)?
Answers
Answer:
11
Step-by-step explanation:
I’m sorry for the sloppy work
Answer:
11
Step-by-step explanation:
how to step by step do the algebreic expression
7 + 5y, y = 2
Answers
Answer:
The answer is 17
Step-by-step explanation:
The first step to this equation is to plugin y (2) to the equation and multiply The next step is to add the 10 and the 7 to get a final answer of 17.
If you could give me brainiest that would be much obliged.
Answer:
17
Step-by-step explanation:
If your trying to evaluate y=2 . . .
7 + (5) (2) =17
(5)(2) Just multiply 5 and 2
= 10
Now your left with 7 + 10
7 + 10 is 17
ILL GIVE BRAINLIEST
I wrote random stuff please please explain to me what linear relationships/functions are.
Answers
Answer:
Linear relationshi/functions are lines that goe up linearly
Step-by-step explanation:
I hope this helps?!
its a function if it has a constant rate of change
the picture the first two is +10 but the next one is +15 so it doesn’t have a constant rate of change
so therefore there’s no constant rate of change
btw rate of change is the same as triangleY/ triangle X
but since there’s no constant rate of change it’ll be blank
Find a ratio equivalent to 40/50.
Choose the correct answer below.
A. 20/25
B. 41/51
C. 20/10
D. 8/25
E. 50/40
F 39/49
Answers
Answer:
A
Step-by-step explanation:
You can divide 40 by 2.....this gives you 20.
Whatever you do to the top, do to the bottom.
Divide 50 by 2.....this gives you 25.
Your answer is 20/25
Answer:
A
Step-by-step explanation:
You can actually use simple division to help you solve this problem. The ratio given is 40/50. Well, divide the two numbers of the ratio. You will then get, 4/5 (.8 as a decimal). You can then do the same to all of the answer choices and see which one gets you the same decimal or fraction.
Hope this helped! (marking me brainliest would be great!)
i give brainliest pls answer
Raul’s grandfather is Miguel, and Raul’s sister is Paula. Raul’s age is the same as his grandfather’s age minus 60 times the age of his sister. Miguel is 65 years old. Using the results from Part C, write an equation to find Paula’s age, p (in years).
Previous equation answer:
Yes the values are the same
3r = 45
3(15) = 45
Answers
Answer:
3(15)+60p+65=45
Step-by-step explanation:
Paula’s age, p is 5/6 years.
Given that, Raul’s grandfather is Miguel age=65 years.
How do solve age problems?Important Statements and Equations for "Problems based on Ages":
If the present age is y, then n times the present age = ny.If the present age is x, then age n years later/hence = x + n.If the present age is x, then age n years ago = x – n.The ages in a ratio a: b will be ax and bx.If the current age is y, then 1/n of the age is y/n.Let Raul’s sister Paula's age be p and Raul’s age be r.
From the statement, Raul’s age is the same as his grandfather’s age minus 60 times the age of his sister.
We can write the equation as follows r=65-60p
In part C:
39=3r-6
⇒r=15
So using the part C answer we get 15=65-60p
⇒60p=65-15
⇒p=5/6 years
Therefore, Paula’s age, p is 5/6 years.
To learn more about age problems visit:
https://brainly.com/question/16949817.
#SPJ2
The number of years from the start of the Great Depression to the first presidential election of Richard Nixon is six years less than three times Raul’s age. Nixon’s first presidential election happened 39 years after the Great Depression. Using the given information, write an equation to find Raul’s age, r. (not the question I need I already know its 15)
Raul’s grandfather is Miguel, and Raul’s sister is Paula. Raul’s age is the same as his grandfather’s age minus 60 times the age of his sister. Miguel is 65 years old. Using the results from Part C, write an equation to find Paula’s age, p (in years). (results from part C were that Rauls age is 15)
do not answer unless ur victora pleaseeee
Answers
Answer:
? can i be victoria?
Step-by-step explanation:
A cellular service plan for Company A has unlimited minutes for $40/month and a text message rate of $0.10/message. A cellular service plan for Company B has unlimited minutes for $30/month and a text message rate of $0.10/message. At what number of text messages will the total monthly cost for each of the two companies be equal?
Answers
Answer:
None.
Step-by-step explanation:
None because if however many text messages you do, Plan A will be 10 more dollars than Plan B
Talia is going to put carpet in her new house. She measures one side of her living room and finds it measures 17 meters.Which measurement does 17 meters represent?
Area,Length, or perimeter.
Answers
Answer:
length
Step-by-step explanation:
BRAINLIST WILL be given . look at the pictures . the first picture is the question and the other two are just context .
Answers
Answer:
d//
Step-by-step explanation:
took the test
hope this helps
Answer:
B. y = 1/2x - 2Step-by-step explanation:
The slope-intercept form is:
y = mx + bAccording to the table, point (0, -2) we see:
y-intercept is - 2And using two points (4, 0) and (8, 2) we can find the slope:
m = (2 - 0)/(8 - 4) = 2/4 = 1/2So the line is:
y = 1/2x - 2Correct option is: B
The width of a computer monitor is 28 cm. If the perimeter is 136 cm, what is the area of the computer monitor?
A. 896cm 2
B. 812 cm2
C.1,020 cm2
D. 1,120 cm2
Answers
Answer: D. 1,120 cm2
Step-by-step explanation: Perimeter is the adding of all four sides, so if you take the width and add it with itself, you can then subtract the perimeter with the added width. Now with this new number all you have to do is divide it by two, and now that you have the length you can multiply it with the original width to get the area.
Hope this helps !
1)The average height of 4 boys is 1.65m. One boy is 1.68m tall. Find the average height of the other 3 boys.
2) Ian, John and Juan shared a sum of money in the ratio 4:7:9. What percentage of the sum of money did John receive?
3) The usual price of a refrigerator is $800. It is sold at a discount of 15%.find the selling price.
Answers
If the average height of the 4 boys is 1.65m that means the total of their heights is 6.6m
To get the average height of the other 3 boys you have to take away the one boys height from the total and divide that number by 3
6.6-1.68 = 4.92
4.92/3 = 1.64
Therefore the average height of the other three boys is 1.64m
2)
To do this you first find the total of the parts of the ratio so
4+7+9 = 20
Next you find what percentage each part is worth so
100/20 = 5
This means that each part of the ratio is worth 5% of the total sum
Because John received the 7 in the 4:7:9 ratio you times 7 by 5
7x5 = 35
Therefore John got 35% of the total sum of the money
3)
The formula for finding the discounted price using the percentage discount is
Discounted Sale price = (100% - %Discount) x Regular Sale Price
Using this formula to find the discounted sale price you do
(100% - 15%) x 800
= 85% x 800
= 680
Therefore the selling price of the refrigerator is $680