What would be the equation (using x) to solve "What are the dimensions of a rectangle whose length is 4 more than twice the width and whose perimeter is 3 less than 7 times the width?"
Answers
Let w = the width
Let 2w + 4 = the length
Let 7w-3 = the perimeter
P = 2l + 2w
7w-3 = 2w + 2(2w+4)
7w-3 = 2w + 4w + 8
w = 11
length = 2w + 4 = 2(11) + 4
length = 26
P = 7(11) -3 = 77 - 3
Perimeter = 74
Answer:Let w = the width
Let 2w + 4 = the length
Let 7w-3 = the perimeter
P = 2l + 2w
7w-3 = 2w + 2(2w+4)
7w-3 = 2w + 4w + 8
w = 11
length = 2w + 4 = 2(11) + 4
length = 26
P = 7(11) -3 = 77 - 3
Perimeter = 74
Step-by-step explanation:
Related Questions
Zoey goes to a store an buys an item that costs x dollars. She has a coupon for 15% off, and then a 9% tax is added to the discounted price. Write an expression in terms of x that represents the total amount that Zoey paid at the register.
Answers
Answer:
0.9265x
Step-by-step explanation:
x - 0.15x + 0.09(0.85x)
x is the initial amount, -0.15x is subtracting 15% of the original amount (leaving 0.85x), and 0.09(0.85x) is the 9% tax.
Simplified:
x - 0.15x + 0.09(0.85x)
= 0.85x + 0.0765x
= 0.9265x
i need help on these four questions. its finding the experimental probablility of an event. and i dont need the work just the answers. hurry this is due really soon!!!!!
Answers
Answer: .28, .16, 0, .34
Step-by-step explanation:
Triangle FGH has vertices F(−3, 2), G(1, 3), and H(−1, −1). Triangle F′G′H′ has vertices F′(3, 2), G′(−1, 3), and H′(1, −1).
Which transformation of triangle FGH produced triangle F′G′H′?
A)a rotation of 90° counterclockwise around the origin
B)a rotation of 90° clockwise around the origin
C)a reflection across the y-axis
d)a reflection across the x-axis
Answers
D) a reflection across the x-axis (y=0)
Jon is trying to decide where to buy discounted movie tickets. Costless sells a pack of 10 tickets for $70, and the website, Movies Unlimited, sells them at 8 tickets for $60. What is the unit price at each company
15 points
Answers
Answer:
Costless tickets unit price: 7 Dollars a ticket.
Movies Unlimited tickets unit price: 7.5 Dollars a ticket
ALSO GIVE ME BRAINLIEST :)
Step-by-step explanation:
Divide 70 by 10 and you get 7 then divide 60 by 8 and you get 7.5
Please help I will mark you as a brainliest
Answers
Answer:
A,B,D
Step-by-step explanation:
A: 4-10=-6. -6=-n 6=n (negatives cancel)
B: 3*2=6 n=6
D: 48/8=6 n=6
∑ Hey, js1012201 ⊃
Answer:
(A) 4 = 10 - n
(B) 3 = n/2
(D) 8n = 48
Step-by-step explanation:
Given:
Select all the equations where n = 6 is a solution.
Choose 3 answers:
(A) 4 = 10 - n
(B) 3 = n/2
(C) 12 = n + 7
(D) 8n = 48
(E) 5 + n = 8
Solution:
Let's solve each answer choices to see where n = 6 is a solution:
-------------------------------------------------------------------------------------------------------------
(A) 4 = 10 - n
4 + n = 10 - n + n
4 + n = 10
4 + n -4 = 10 - 4
n = 6
(A) n = 6
-------------------------------------------------------------------------------------------------------------
(B) 3 = n/2
Multiply both sides by 2
2n/2 = 3 × 2
n = 6
(B) n = 6
-------------------------------------------------------------------------------------------------------------
(C) 12 = n + 7
Subtract both sides by 7
n + 7 -7 = 12 - 7
n = 5
(C) n = 5
-------------------------------------------------------------------------------------------------------------
(D) 8n = 48
Divide both sides by 8
8n/8 = 48/8
n = 6
(D) n = 6
-------------------------------------------------------------------------------------------------------------
(E) 5 + n = 8
Subtract 5 from both sides
5 - 5 + n = 8 - 5
n = 3
(E) n = 3
-------------------------------------------------------------------------------------------------------------
xcookiex12
8/19/2022
The graph shows that while it was being filled, the amount of water in gallons in a
the swimming pool was approximately proportional to the time that passed in
minutes.
a. About how much water was in
the pool after 25 minutes?
b. Approximately when were
there are 500 gallons of water in
the pool?
c. Estimate the constant of
proportionality for the gallons
of water per minute going
into the pool
Answers
Answer:
1225
Step-by-step explanation:
multiply #s
Answer:
Super super super super super SUPER late but,
Step-by-step explanation:
If you look at the chart you can see 20 mins and then if you go to the point of 25 which would be between ( in the middle) of 20 and 30, then you would go up to the empty point that is followed up by the 20 and 30 and as you can see you get 380, so your first answer for number 1 would be 380 gallons
The second question um looking at the chart again if you would go to 35 then go up you can see 500 is how 35 Is your answer (about 35 mins)
The last one is 15 don't know how I got it but it's 15.
This is the chart that I use
Practice
Solving Any Linear Equation
2(x +5) = 3x + 1
Answers
Answer:
x=9
Step-by-step explanation:
2x+10=3x+1
subtract 2x by both sides?
10=x+1
then subtract 1 on both sides
so its x=9
Answer:
× 89 and that it I think because it re all needs x in the front
Which three of the following statements are correct according to the diagram?
Answers
the awnser is A. B. and C.
D. is a ray and only has one end point
B. and C. are using a line segment symbol, which means they have no end point.
and A. seems to be the correct awnser. It has a line which has 2 end points, and the || means parallel. but if they need 3 it would be A. B. and C.
Have a good day
Immediate help please! I will give the best answer a brainliest!!! (Please give an explanation, step-by-step on how you got to the answer, and no silly answers just because you want to farm points -_-)
1) What is the value of r?
Answers
Answer:
r=4-2\sqrt{2}
Step-by-step explanation:
Let's set up an equation! (most cringe phrase ever, but hey, it works)
Because this is a square, we can do something like this: \(\frac{r}{\sqrt{2}}\)+r=2
If we multiply all sides by \(\sqrt{2}\), then we get \(r+r\sqrt{2} = 2\sqrt{2}\)
Time to solve it! (you could've gotten here another way, tho)
\(r(1+\sqrt{2} )=2\sqrt{2}\)
\(r=\frac{2\sqrt{2} }{1+\sqrt{2} }\)
Rationalizing the denominator, we get \(r=4-2\sqrt{2}\)
Feel free to tell me if I did anything wrong! :)
please write a function for the points (1/3,0) (-2 3/4,0) and (0,-5) and explain the steps.
thank you!
Answers
The function for the points are y = -15x - 5
How to determine the functionFrom the information given, we have that;
The points are;
(1/3,0) (-2 3/4,0) and (0,-5)
Using the point-slope form of a linear equation, we have;
y - y₁ = m(x - x₁)
Such that;
m is the slope of the liney - y₁ and (x - x₁) are the pointsUsing (1/3, 0) and (0, -5), we have that the slope is;
m = (0 - (-5))/0 -1/3)
expand the bracket
= 5 / (-1/3)
= -15
Now, take any of the given points and substitute the values
Using (1/3, 0), we get;
y - 0 = -15(x - 1/3).
y = -15x - 5.
Learn more about functions at: https://brainly.com/question/25638609
#SPJ1
The function for the points solved by (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)
We have given the points:
(1/3,0) (-2 3/4,0) and (0,-5)
Using the formula of linear equation
\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)
Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)
that is 1/3 = \(a\), 0 = \(a_{1}\) and
0 = \(b\), -5 = \(b_{1}\)
\(x\) refers to the slope of line (take any variable)
Now for finding the value of \(x\),
\(x=a-a_{1}/b-b_{1}\)
inserting the values,
\(x=[0-[-5]]/[0-1/3]\\x= -15\)
Substitute the value of \(x\) in the equation
\(a-0=-15[b-1/3]\)
By simplifying the equation, we get
\(a=-15b-5\)
To know more about functions and points:
https://brainly.com/question/30721594
“Nellie has a watering can that contains 20 cups of water. She pours one quart of water on each plant in her yard. If Nellie used all the water,how many plants does she water? Explain.”
Answers
20 / 4 = 5 plants
20 cups is equivalent to 5 quarts. if she distributed one quart of water to one plant, she waters 5 plants
what is the answer to 8(x + 100) - 3 = 837
Answers
8x=837-797
8x=40
x=40/8
x=5
8x + 800 - 3 = 837
8x + 797 = 837
8x = 837-797
8x = 40
40/8
x = 5
Determine whether the sample may be biased. Explain.
Over one day, 50 random customers of a skateboard shop are asked their opinion on opening a skate park in their town.
Answers
Answer:
The sample of 50 random customers of a skateboard shop may be biased as the people surveyed may not be representative of the entire population.
Step-by-step explanation:
NEED WITHIN 50MIUTES IF NOT ANSWERED IN 50 MINUTES THEN I WILL NOT NEED ANSWER ANYMORE!
For each situation below, identify the dependent variable and independent variable.
Answers
Answer:
Part A, the tickets sold depends on the temperature
Part B, the monthly payments depends on the age of the person
Part A, tickets are the dependent variable, the temperature is the independent
Part B, the monthly payments are the dependent variable, the age of the person is the independent variable
Happy Store realizes a mark-up of PhP3,450 in selling TV sets. If its items are sold at a
mark-up of 40% of the selling price,
a. What is the regular selling price of the TV set?
b. What was the cost of the TV set?
c. What is the rate of mark-up based on cost for the TV set?
d. If overhead expenses are at 27% of the cost, what is the break-even price of the TV
set?
e. If the TV set is sold at PhP7,500, how much profit or loss is incurred by Appliance
Store?
Answers
help help help meeeee freee pats or hugs :3
Answers
The depth y(in feet) of a river after x years is y=0.1x+10,can you graph the linear equation?
Answers
Answer:
Step-by-step explanation:
y=0.1x+10,
slope can be made into a fraction 1/10
slope :1/10
y intercept :=10
draw the graph with the y intercept (0,10)
slope is defines as y movements/ x movements
move one up from (0,10)
and 10 to the right since it is positive making the next point you can plot (10,11)
you can check if this is correct by plugging x and y in
11=0.1(10)+10,
.1x10=1
11=1+10,
1+10 =11
11=11
do the same to the other side
move down 1 from (0,10) and move 10 to the left
next plot will be (-10,9)
you can check by pluging in x and y
9=0.1(-10)+10,
-10x.1=-1
9=-1+10,
-1+10=9
9=9
Now that you have the points you can draw the line and connect them
Hope this helps
Can someone help I am confused
Answers
1. No
2.Yes
3.Yes
4.No
:)
Answer:
No, Yes, Yes, No
Step-by-step explanation:
The most clear aspect of right triangles is, the sum of square value of two of its legs is equal to square value of hypotenuse (the longest side)
for the first option:
10, 15, 20 : No
10^2+15^2 = 325 while the suare value of 20 is equal to 400.
we don't have to check the following values:
8,15,17 : Yes
5,12,13 : Yes
Because these are the side lengths of special right triangles according to Pythagoras
as for 4,5,6
4^2 + 5^2 = 41 while the square value of 6^2 = 36
Which of these are linear functions?
Answers
Answer:
D
Step-by-step explanation:
(Help me please) what can you tell about the mean of each distribution
Answers
Answer:
The distribution is considered the mean in the problem
Step-by-step explanation:
$124.84 - $19.75 = $105.09
If you can consider what the mean is in math: How to Find the Mean. The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
Have a nice day and if you could mark me as brainllest I would be happyhelp! i dont this math problem please due soon!
Answers
Answer:
12x12 12x6 H = 46cm
Step-by-step explanation:
took quiz
Answer:
46 cm
Step-by-step explanation:
I learned this formula in math last year
PLSSSSS HELP ME, I WILL GIVE BRAINLIEST!!!
Answers
Answer:
Step-by-step explanation: The answer would be
10
The common factor of x^2y^4 and x^3 is x^2
So the common monomial factor is 3x^2
You can rewrite as. 3x^2(5y^4 + 9x)
whats the surface area?
Answers
Answer:
1108 in²
Step-by-step explanation:
You want the total surface area of the pentagonal prism shown.
Base areaThe area of each of the two pentagonal bases is the sum of the area of the yellow rectangle and the area of the triangle above it. That sum is ...
A = LW +1/2bh
A = 5(12) +1/2(12)(9) = 12(5 +9/2) = 114 . . . . square inches
Lateral areaThe lateral area of the prism is the sum of the areas of the 5 rectangles. That sum will be the product of the perimeter of the pentagonal base and the distance between bases.
LA = (12 +5 +11 +11 +5)(20) = (44)(20) = 880 . . . . square inches
Total areaThe total surface area of the figure is the sum of the two base areas and the lateral area:
SA = 2(114 in²) +880 in² = 1108 in²
The surface area of the composite figure is 1108 in².
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In a bowl, a painter mixes 3 2/5 ounces of yellow paint, 2.15 ounces of blue paint, 2 4/5 ounces of orange paint, and 0.85 ounces of purple paint. How many ounces of paint are in the bowl?
Pls put an explanation for the answer!
Thank You! :)
Answers
Answer:nao se perdona
Step-by-step explanation:
Explanation
3 2/5=3.4
2 4/5=2.8
And if you add them all up it would equal 9.2
3.4+2.8+2.15+0.85=9.2
Find the area of the circle when C = π/2 . Give your answer in terms of π.
NO LINKS !!!
Answers
Answer:
dfbbfbf
Step-by-step explanation:
dsktgsjfjvbgjshfhfthhvdh
please help on this question
Answers
Answer: One moment, good sir.
Step-by-step explanation:
need help! pls and thank youu...
Which sequence of transformations creates a similar, but not congruent, triangle?
A) Rotation and translation
B) Reflection and rotation
C) Dilation and rotation
D) Translation and reflection
Answers
Answer:
C) Dilation and rotation
Step-by-step explanation:
Dilation changes the size of the shape (how big or small the shape is), rather then changing the shape itself (into a completely different shape). The other options are transformations, but they only move the shape along the graph, nothing else. Hope this helps!
Mrs. Wickowitz purchased at leat 4 dozen muffins to give to her students. write an inequality to represent the amount of dozen of muffins, m, that Mrs. Wickowits purchased.
A) m < 8
B) m > 4
C) m > 3
D) m < 12
Answers
m >= 4
This inequality states that the value of m (the number of dozen muffins) must be greater than or equal to 4.
Therefore, the correct answer is B) m > 4.
Describe the pattern in each sequence and determine the next term of the sequence.
Will give brainliest :)
Answers
Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111
Answers
Here are the pairs matched with their products:
- (-5)(4.2) matches with -21
- (-7)(-3) matches with 21
- (2.5)(-9) matches with -22.5
Pairs (4) and (5) do not have corresponding products in the given options.
(-5)(4.2) = -21
(-7)(-3) = 21
(4)(5) = 20
(2.5)(-9) = -22.5
So, the pairs of numbers and their products are as follows:
(-5)(4.2) = -21 matches with -21.
(-7)(-3) = 21 matches with 21.
(4)(5) = 20 matches with 20.
(2.5)(-9) = -22.5 matches with -22.5.
I hope this helps!