Answer:
x=-10
Step-by-step explanation:
-3(x+7)=9
-3x-21=9
add 21 to both sides of equation
simplify divide both sides by like terms
simplify again and you have your answer
Just need help with number 2 I will GUVE brainliest
2. Solve: 2p+4= - 50
2p + 4= -50
=> 2p = -50-4
=> 2p = -54
=> p = -54/2
=> p = -27
(2x + 3) + (2x + 3) + (2x + 3) + (2x + 3)
Answer:
8x + 12
Step-by-step explanation:
2x + 3 + 2x + 3 + 2x + 3 + 2x + 3
8x + 12
Answer:
8x + 12
Step-by-step explanation:
3+3+3+3=12
2+2+2+2=8
da x stays da same
A sweatshirt that was originally priced at $42.50 has been marked down to $34.00.
What is the percent decrease?
80%
25%
15%
20%
Answer:
the answer is 20%.
Step-by-step explanation:
all you have to do is multiply 42.50x.20 and it gives you 8.5. to check your answer you subtract 34.00 from 42.50 and you get 8.5 as well. hope this helps!
Answer:
20%
Step-by-step explanation:
Hope it helps! :)
Keith spent 48 minutes to make 8 flyers how long was spent for each flyer
Answer:
6 minutes
Step-by-step explanation:
48/8=6
The first three terms of a sequence are given. Round to the nearest thousandth (if necessary). 15, 30,60,... Find the 6th term.
Answer: 120, 240, 480
Step-by-step explanation:
It would appear that the numbers are increasing in multiples of 2.
15 * 2 = 30
30 * 2 = 60
The next 3 terms will therefore be:
60 * 2 = 120
120 * 2 = 240
240 * 2 = 480
Answer:
480
Step-by-step explanation:
Marco would like to hang a banner over his shoe store. He has two ladders and would like to know how high above the ground each ladder will allow him to place the banner. A 13- foot ladder leans against the building and touches it at a point that is 11.3 feet above the ground.
what height would a 15-foot ladder touch the building if both ladders form the same angle with the ground? Make a sketch and round your answer to the nearest tenth
place (−6, 8) on the coordinate plane.
Answer:
6 spots to the left and then 8 spots up
Step-by-step explanation:
Just go 6 spots to the left and then 8 spots up
Answer:
Thats where you put it
Simplify (6x3 – 16x2 + 11x – 5) ÷ (x - 2)
Answer
iStep-by-step explanation:
hi.......
What is the correct answer?
Answer:
I do not know
Step-by-step explanation:
I dont know
AB is the angle bisector of CAD. Solve for the missing variable?
Answer:
[tex]x=8^\circ[/tex]
Step-by-step explanation:
A bisector is the line that divides an angle (which in this case is [tex]\angle CAD[/tex]) exactly in half. Therefore, [tex]\angle CAB = \angle BAD[/tex] and as such we can solve for [tex]x[/tex]:
[tex]\angle CAB &= \angle BAD\\33^\circ &= 4x + 1^\circ\\4x = 32^\circ\\x = 8^\circ[/tex]
and we are done.
Solve if x is equal to 4
y=2x
y=?
Answer:
8
Step-by-step explanation:
because 2 time x=4 then multiply them and you get 8
Find (6) x (-3)
What is the answer to this?
Answer:
Multiply 6 by −3.
−18
Step-by-step explanation:
Hope it is helpful.....
Answer:
-18
Step-by-step explanation:
make sure you know your tables of 6 it might help you.
What is the perimeter of this figure
40 in.
10 in.
50 in.
18 in.
Answer:
236
Step-by-step explanation:
100+100+36=236
Answer:
C. 180
Step-by-step explanation:
Fill in the table of values for the equation y= x+2
Answer:
-5 -= -3; 0= 2; 3=5
Step-by-step explanation:
hello please anyone answer that 9/20=.......%
Question/Equation:
9/20=__%
Answer/Steps to answer:
1. For the denominator, recognize that 20×5=100.
Multiple = 55
2. Multiply both the numerator and denominator by the multiple 5.
9×5/20×5
3. Simplify.
45/100
4. Simplify.
45% (0.45 Is Decimal Form)
Done by NeighborhoodDealer
A video rental store charges a $20 membership fee and $2.50 for each video rented.
Write a linear equation to model this situation.
Tell what each variable represents.
Answer:
2.5x + 20 = y
Step-by-step explanation:
first, assign a variable to each unknown:
since we don't know how many videos were rented, that can be x, and we don't know the person's total cost, which can be y
x = number of videos rented
y = total cost
so there's always a $20 that's added on as a membership fee, which means that theres going to be a + 20 somewhere.
So, the equation is 2.5x + 20 = y
y=4x+3
in slope intercept form
The answer is y=4x+3, it's already in slope intercept form.
In 1983, a cast-iron pan cost $28.35. Today, a cast-iron pan costs $52.95. If the CPI is 166, what is the percent relation
of the actual price of a cast-iron pan to the expected price?
a The actual price is 11.1% lower than the expected price.
b The actual price is 20.8% lower than the expected price.
The actual price is 31.5% higher than the expected price.
d. The actual price is 12.5% higher than the expected price.
с.
Answer:
d.
The actual price is 12.5% higher than the expected price
Step-by-step explanation:
The percent relation of the actual price and the expected price is 12.5%
What is the consumer price index?The consumer price index measures the changes in price of a basket of good. It is used to measure inflation.
Price of the cast iron today = $28.35 x (166/100) = $47.06
The percent relation of the actual price and the expected price = ($52.95/$47.06) - 1 = 12.5%
To learn more about, consumer price index, please check: https://brainly.com/question/26382640
-5=n-8/4
What is happening to the variable?
How do you solve for the variable?
Answer:
n=-3
Step-by-step explanation:
Alrighty, now if I understood the problem correctly, we can simplify it to:
-5=n-2
We do +2 on both sides, and -5+2 is -3
So, n=-3
Answer:
n= -3
you move the variable to the other side it has to be by it self on the other side of the equal sigh
Step-by-step explanation:
-5 =n-2
-5+2=n
-3=n
n=-3
If Mr.Novak gives 9 packs of paper to a group of 5 students. If the group shares the paper equally. How many packs of paper does each student get? Write the answer as a mixed number.
Each student gets 1 whole pack of paper and 4/5 of a pack.
What is a division in mathematics?
Division is a mathematical operation that is used to determine the number of times one number, called the dividend, is contained within another number, called the divisor. The result of a division operation is called the quotient.
When a group of students share a certain number of items equally, it means that each student will receive the same number of items. To find out how many items each student will receive, we need to divide the total number of items by the number of students.
In this case, Mr. Novak gives 9 packs of paper to a group of 5 students. To find out how many packs of paper each student gets, we need to divide 9 by 5. We can use long division or use a calculator to find that 9 divided by 5 is 1 with a remainder of 4. So, each student will get 1 whole pack of paper, and the remaining 4 packs will be shared among the students. This can be written as a mixed number, which is a combination of a whole number and a fraction. In this case, the mixed number would be 1 4/5.
Hence, each student gets 1 whole pack of paper and 4/5 of a pack.
To learn more about the division in mathematics, visit:
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what does y = -10x + 80 look like on a graph?
Answer:
I posted a picture on how it looks
Step-by-step explanation:
Hope this Hlepd
It's NOT D
Write a rule for the linear function in the table.
A. f(x) = 4x
B. f(x) = x + 4
C. f(x) = x – 4
D. f(x) = 4 – x
Answer:
You may want to email your teacher. I am pretty sure it is d, or f(x)=4-x.
Step-by-step explanation:
4-1=3
4-2=2
4-3=1
4-4=0
Pls help me with my homework
Answer:
b = 8
Step-by-step explanation:
Using Pythagorean Theorem, a[tex]a^{2} +b^{2} =c^{2}[/tex], we just plug in what we know.
We know that the hypotenuse, c, is 10 km. We also know that one of the other side lengths is 6 km, we can plug that into either a or b.
Now, our equation will be: [tex]6^{2} +b^{2} =10^{2}[/tex].
You could also use the equation: [tex]b^{2} =10^{2} -6^{2}[/tex].
Next, we'll just solve the equation.
[tex]10^{2} =100[/tex], [tex]6^{2} = 36[/tex]
[tex]b^{2} =100 - 36[/tex]
[tex]b^{2} = 64[/tex]
[tex]\sqrt{b^{2} } = \sqrt{64}[/tex]
b = 8
Good luck :D
A remote control car costs $60. It is reduced to $45 in a sale. What is the percent change?
Answer:
25%
Step-by-step explanation:
i dont have a Step by step explanation
The first number plus the second number equals 83, the first number
minus the second number equals 33. What are the two numbers?
Answer:
I hope this helps
Step-by-step explanation:
So the way to handle a problem like this is to rewrite the three numbers in terms of their relationship to one of the three numbers. Let's call the numbers x, y, and z, where x is the first number, y is the second, and z is the third.
We know x + y + z = 83.
Since the third number is twice the second, we say that z = 2y.
Since the second number is seven less than the first, we say that y = x - 7. We can rewrite this as x = y + 7.
Now all three can be written in terms of y.
x + y + z = 83
(y + 7) + y + 2y = 83
4y + 7 = 83
4y = 76
y = 19
The second number is 19. The first is 19 + 7 or 26, and the third is 2 times 19 or 38.
A check reveals that 26 + 19 + 38 = 83.
Find the area of the shape below.
(2x + 3) + (2x + 3) + (2x + 3) + (2x + 3)
Answer:
8x+12
Step-by-step explanation:
Answer:
[tex]4(2x + 3)[/tex]
Step-by-step explanation:
1. Factor out common terms in the first two terms, then in the last two terms.
[tex]2x + 3 + 2x + 3 + 2x + 3 + 2x + 3[/tex]
2. Collect like terms.
[tex](2x + 2x + 2x + 2x)(3 + 3 + 3 + 3 )[/tex]
3. Simplify.
[tex]8x + 12[/tex]
4. Factor out the common term.
[tex]4(2x + 3[/tex]
Therefor, the answer is 4(2x + 3)
Consider the standard form of an exponential function:
y = a (b)^x
1. How does changing the base number (inside the parentheses) change your graph? (10 points)
2. How does changing the number outside the parentheses change your graph? (10 points)
3. Create three new exponential equations to represent Alison, Cindy, and Javier. (30 points)
Alison loves social media and likes for her posts to be shared as much as possible while Cindy and Javier prefer for their posts to stay amongst their friends primarily.
I have number one please help with 2 and 3.
Answer:
2. If we plug in X = 0 into our problem ( Y = A(B)^X ) I would get Y = A which drastically changes the initial value, the Y-intercept, and the point on the graph. The point changes to (0,a) which becomes the new Y-intercept.
3. Cindy and Javier would be ln(x) and x^(1/2) as they will grow somewhat fast at first and then die out.
While Alison would be 1/(1+e^-x) representing an s curve showing a lot of growth and later evening out.
Step-by-step explanation:
The answer to part [2] and [3] are given above.
What is a mathematical function? What is an exponential function? Differentiate between equation and expression? exponential function : An exponential equation is given by -y = A(B)ˣ
function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.Given is the standard form of an exponential function -
y = a (b)^x
[2] - Changing the number outside the parenthesis will determine the amplitude scaling of the graph of (A)ˣ. For -
a > 1 (Magnitude will increase)
a < 1 (Magnitude will decrease)
a = 0 (Magnitude will become zero)
[3] - For Alison, we can write the expression as -
y{A} = 5000(1000)ˣ
For Cindy and Javier, we can write -
y{C} = (2)ˣ
y{J} = (3)ˣ
where -
[x] represents the number of posts.
Therefore, the answer to part [2] and [3] are given above.
To solve more questions on functions, expressions and polynomials, visit the link below -
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A chef uses 18 ponds of butter each day about how many grams of butter does he use each day?
Answer:
8164.66g
Step-by-step explanation:
18 pounds -> 8164.66g
