A scale drawing of a kitchen is shown below. The scale is 1 : 20.
Show your work to determine the area of the room in square feet.
Answer:
Step-by-step explanation:
B
2y+7x=4;x=5,10,15 PLEASE HELP ASAP!!!!
Final answer:
To solve the equation 2y+7x=4 for x=5, x=10, and x=15, substitute each value into the equation and solve for y to get y=-15.5, y=-33, and y=-50.5 respectively. It’s important to check the solutions by substituting them back into the original equation.
Explanation:
To solve the given linear equation 2y+7x=4 for different values of x (x=5, x=10, x=15), we need to substitute these values of x into the equation and solve for y. Here’s how it can be done:
For x=5: 2y + 7(5) = 4.Please help me?
3x - 4y = 7
3x + 2y = -5
When the second equation is subtracted from the first, the resulting equation is _____.
A. -6y = -12
B. -6y = 12
C. -2y = -12
D. 2y = 12
PLS HELP!
Rohan is checking in poodles for a dog show. A miniature poodle must be between 10 in. and 15 in. at the shoulder. The body length must be no more than 16 in. In addition, the poodle’s shoulder height must be no more than 1 in. longer than its body length.
The graph shows the feasible region, where x represents the poodle’s body length and y represents the shoulder height.
Which ordered pairs meet all the constraints for a successful poodle measurement and make sense in context of the situation?
Select each correct answer.
(15, 11)
(11, 9)
(11, 14)
(10, 12)
(12, 10.5)
Answer:
(15, 11) and (12, 10.5).
Step-by-step explanation:
Let x represents the poodle’s body length and y represents the shoulder height.
A miniature poodle must be between 10 in. and 15 in. at the shoulder.
[tex]10\leq y\leq 15[/tex]
The body length must be no more than 16 in.
[tex]0\leq x\leq 16[/tex]
The poodle’s shoulder height must be no more than 1 in. longer than its body length.
[tex]y\le1+x[/tex]
From the below figure it is clear that only two points (15, 11) and (12, 10.5) lie in the feasible region.
Therefore, ordered pairs (15, 11) and (12, 10.5) meet all the constraints for a successful poodle measurement and make sense in context of the situation.
Wilma and Betty are playing a number game. Wilma tells Betty, "I'm thinking of a number between 1 and 10. If I take the number and add 4 to it and then multiply that by 3, I get 30." What number is Wilma thinking of?
The oil tank in your car is leaking at a rate of 1.2 oz per mile driven. You drove 15 miles over to your grandma house . How many cups of oil did your car leak ?
The oil tank in your car is leaking at a rate of 1.2 oz per mile driven. You drove 15 miles over to your grandma's house. Therefore, it would be 2 cups and 4 oz leaked out.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
The oil tank in your car is leaking at a rate of 1.2 oz per mile driven. You drove 15 miles over to your grandma's house.
There are 8 oz in a cup
So,
8 x 3 = 24 which is too high
So,
8 x 2 = 16 leaving about 4 oz left
Therefore, it would be 2 cups and 4 oz leaked out.
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If UV = KL and KL = 6, then UV = 6
125m on the ground corresponds to 2.5 cm on a map. What is the actual distance between two objects if they are 4.2 cm apart on the map?
The measures of the three angles of a triangle are given. Find the value of x and state whether the triangle is acute, obtuse or right. x + 10, x − 20, x + 25
A. x = 25, acute
B. x = 55, acute
C. x = 65, right
Answer:
x=55 acute
Step-by-step explanation:
Because of the 3-6 theorum of triangles
The cost of admission to an amusement park is $9.50 plus $1.50 per ride. What would the cost be for someone who went on 9 rides? show your work and explain
The cost for someone who went on 9 rides is $23.
What is equation?An equation is a mathematical sentence that has two equal sides separated by an equal sign.
Given that, The cost of admission to an amusement park is $9.50 plus $1.50 per ride.
The equation can be made,
C = 9.50 + 1.50n, where n is the number of rides.
For n = 9
C = 9.50 + 1.50*9 = $23
Hence, The cost for someone who went on 9 rides is $23.
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If a 16-ounce box of candy costs $8.95, how much does one ounce cost? Round your answer to the nearest cent.
Help please pre calculus
put 7.6*10^-4 into the equation:
10log(1/7.6*10^-4)
this equals 31.19 db
Person is randomly selected. what is the probability that the person is:
a.color-blind given that the person is male? 69/133
b.male and color-blind?
The probability that a person is color-blind given they are male is 69/133. Calculating the probability of being both male and color-blind requires additional information about the total and male population. This showcases the importance of context in probability calculations.
Explanation:The question involves calculating the probability of specific conditions related to color-blindness and gender. To address both parts of the question:
For part a, the probability that a person is color-blind given that the person is male is directly provided as 69/133. This means out of all males considered, approximately 51.88% have color-blindness.For part b, determining the probability of being male and color-blind would require more specific data, such as the total number of people or the ratio of males to females, and how many among them are color-blind. If we consider the probability for a male to be color-blind is 69/133, this probability is only valid within the male population; it does not directly give us the probability of being both male and color-blind unless the total population is known and the proportion of males within that population is specified.Understanding probabilities in genetics, like color-blindness, often involves considering various factors including the overall population and specific subgroups within that population (such as males in this case).
Please help with a multiple choice question!!
Relationship B has a greater rate than Relationship A. This graph represents Relationship A.
Which equations could represent Relationship B?
Select each correct answer.
A) y=1/2x
B)y = 3x
C)y = 2.2x
D)y = 1.4x
A tow truck charges a service fee of $50 and an additional fee of $1.75 per mile. What distance was Marcos's car towed if he received a bill for $71?
To find the distance Marcos's car was towed, subtract the service fee from the total bill amount. Then divide the remaining bill amount by the additional fee charged per mile. The distance towed is 12 miles.
Explanation:To find the distance Marcos's car was towed, we need to subtract the service fee from the total bill amount. The additional fee charged per mile is $1.75, so we can calculate the number of miles towed by dividing the remaining bill amount by $1.75.
Let's assume the distance towed is 'x' miles.
The total bill amount is $71, and the service fee is $50. Therefore, the additional fee charged for the distance towed is $71 - $50 = $21.
So we can write the equation:
$21 = $1.75 * x
To solve for 'x', we divide both sides of the equation by $1.75:
x = $21 / $1.75
x = 12 miles
Therefore, Marcos's car was towed for a distance of 12 miles.
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PLEASE SHOW ALL YOUR WORK TO GET BRAINLIEST AWARD
Solve by using a matrix
{7x+2y=5
{13x+14y=-1
// Solve equation [2] for the variable y
// Plug this in for variable y in equation [1]
// Solve equation [1] for the variable x
// By now we know this much :
x = 1 y = -13x/14-1/14// Use the x value to solve for y
how can you use the properties of real numbers to simplify algebraic expressions
A line-marking machine lays down lime powder to mark two equal foul lines on a playing field. If each line for this field measures 311 feet, how many feet of lime powder will be deposited?
The machine will deposit 622 feet of lime powder to mark both foul lines on the playing field.
To solve this problem, we need to consider that the line-marking machine is laying down lime powder to mark two equal foul lines on a playing field. Each foul line measures 311 feet.
Since there are two lines of equal length, we simply need to add the lengths of these two lines together to find the total amount of lime powder deposited.
Here is the calculation:
Length of one foul line = 311 feet
Number of foul lines = 2
Total length of lime powder deposited = Length of one foul line [tex]\times[/tex] Number of foul lines
Total length of lime powder deposited = 311 feet [tex]\times[/tex] 2
Total length of lime powder deposited = 622 feet.
Which set of ordered pairs could be generated by an exponential function?
A. (1, 1) (2, 1/2) (3, 1/3) (4, 1/4)
B. (1, 1) (2, 1/4) (3, 1/9) (4 1/16)
C. (1, 1/2) (2, 1/4) (3, 1/8) (4, 1/16)
D. (1, 1/2) (2, 1/4) (3, 1/6) (4, 1/8)
The correct answer is:
C. (1, 1/2) (2, 1/4) (3, 1/8) (4, 1/16)
Explanation:
In order to be an exponential function, the y-coordinates of each point should be multiplied by a constant to get the next y-coordinate. For C, we multiply by 1/2:
1/2(1/2) = 1/4; 1/4(1/2) = 1/8; 1/8(1/2) = 1/16
This means it is an exponential function.
Chris draws an image of two lines that lie in the same plane and are equidistant at all points .Which of this describes the image drawn by Chris
The answer for this question is parallel lines
HELP PLEASE!!!!!!!
Simplify 6r · s · 4rt.
10rst
10r2st
24r2st
Answer:
24r^2*s*t
Step-by-step explanation:
We can simply the following expression by looking at the which terms are common:
[tex]6*r*s*4*r*t[/tex]
We have two of r and according to the product rule we can add there exponents:
[tex]r*r=r^(1+1)=r^2[/tex]
Therefore the expression can be simplified as:
[tex]=6*4*s*t*r^2=24*s*t*r^2[/tex]
Is this statement true or false? If two lines are intersected by a transversal so that the alternate interior angles are congruent, then the lines are parallel.If two lines are intersected by a transversal so that the alternate interior angles are congruent, then the lines are parallel.
The statement " If two lines are intersected by a transversal so that the alternate interior angles are congruent, then the lines are paralle " is true.
What is Property of Parallel lines?If the corresponding angles created by any two lines are equal, then the lines are said to be parallel.If the alternate internal angles created are equal, any two lines are considered to be parallel.If the alternate outside angles created are equal, any two lines are considered to be parallel.Given:
If two lines are intersected by a transversal so that the alternate interior angles are congruent, then the lines are parallel.
We know whenever we have parallel line intersected by transversal line then we Alternate Interior Angle, Corresponding Angle, Alternate Exterior Angle, are congruent.
Thus, the statement showing when we have Alternate Interior Angle congruent then the lines were be parallel lines.
Hence, the statement is True.
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The table shows the weekly change in the water level in a swimming pool. After 4 weeks, the pool owner adds water to return the water level back to the original level. Raising the water level by 1 inch requires 320 gallons. The water hose has a flow rate of 5.75 gallons of water per minute. Will it take less than an hour to fill the pool back to return the water level to the original level? Explain your reasoning.
Week: 1 2 3 4
Change (in.) : - 1/2 3/4 -1 1/8 -1 3/8
Two separate single-factor anovas provide exactly the same information that is obtained from a two-factor analysis of variance.
a. True
b. False
Can someone help?!
1. List the dimensions of your box. Be sure to include the units (in, cm, ft, etc.).
Length:
Width:
Height:
Answer:
Length
Step-by-step explanation:
mhm
1) The dimensions of the rectangular prism or box which I found are:
Length: 6 inchesWidth: 2.5 inchesHeight: 12 inches (1 foot)2) The shape of the cross-section when the box is cut parallel to the base will be a rectangle.
3) Surface Area of the box is234 in²
4) Surface Area of the box if scaled up by a factor of 10 is 23,400 in²
5) Volume of the box: 180 in³
6) Volume of the box if scaled down by a factor of 1/10 is 0.18 in³
Given:
Dimensions of the box to be:
Length: 6 inches
Width: 2.5 inches
Height: 12 inches (1 foot)
1) The shape of the cross-section when the box is cut parallel to the base will be a rectangle.
2) To calculate the surface area of the box:
Surface Area = 2*(Length*Width + Length*Height + Width*Height)
Surface Area = 2*(6*2.5 + 6*12 + 2.5*12)
Surface Area = 2*(15 + 72 + 30)
Surface Area = 2*(117)
Surface Area = 234 in²
3) If the box is scaled up by a factor of 10, the new dimensions would be:
Length: 6 inches * 10 = 60 inches
Width: 2.5 inches * 10 = 25 inches
Height: 12 inches * 10 = 120 inches
To find the new surface area:
New Surface Area = 2*(60*25 + 60*120 + 25*120)
New Surface Area = 2*(1500 + 7200 + 3000)
New Surface Area = 2*(11700)
New Surface Area = 23,400 in²
4) The volume of the box:
Volume = Length * Width * Height
Volume = 6 * 2.5 * 12
Volume = 180 in³
5) If the box is scaled down by a factor of 1/10, the new dimensions would be:
Length: 6 inches * 0.1 = 0.6 inches
Width: 2.5 inches * 0.1 = 0.25 inches
Height: 12 inches * 0.1 = 1.2 inches
To find the new volume:
New Volume = Length * Width * Height
New Volume = 0.6 * 0.25 * 1.2
New Volume = 0.18 in³
Full Question:
Although part of your question is missing, you might be referring to this full question:
Search your home for a rectangular prism. Some examples are a cereal box, a CD case, or a coffee table. Measure your prism using appropriate units, such as inches, centimeters, or feet.
Complete the following. Show all work for calculations.
List the dimensions of your box. Be sure to include the units (in, cm, ft, etc.).
Length:
Width:
Height:
Describe the shape of the cross section when the box is cut parallel to the base.
What is the surface area of the box?
What is the surface area of the box if it is scaled up by a factor of 10?
What is the volume of the box?
What is the volume of the box if it is scaled down by a factor of 1/10?
((8x1.95) + (3x2.95) + 10.95) x 1.06
Can y'all help me with 7,8,9?????
the weight of a full steel bead tire is approximately 800 grams, while a lighter wheel weighs only 700 grans. What is the weight of each tire in pounds? There are 453.592 grams in one pound. Round answers to 2 decimal places.
Answer:
Weight of full steel bead tire=1.76 pounds
weight of lighter wheel=1.54 pounds.
Step-by-step explanation:
it is given that:
The weight of a full steel bead tire is approximately 800 grams.
lighter wheel weighs only 700 grams.
Now we are given conversion that:
There are 453.592 grams in one pound.
Hence, 1 gram=1/453.592 pounds.
Hence, weight of a full steel bead tire is:
[tex]\dfrac{800}{453.592}pounds=1.76pounds[/tex]
Also weight of lighter wheel in pounds is:
[tex]\dfrac{700}{453.592}pounds\\\\=1.54 pounds[/tex]
There are 30 homes in Neighborhood A. Each year, the number of homes increases by 20%. Just down the road, Neighborhood B has 45 homes. Each year, 3 new homes are built in Neighborhood B.
Part A: Write functions to represent the number of homes in Neighborhood A and Neighborhood B throughout the years. (4 points)
Part B: How many homes does Neighborhood A have after 5 years? How many does Neighborhood B have after the same number of years? (2 points)
Part C: After approximately how many years is the number of homes in Neighborhood A and Neighborhood B the same? Justify your answer mathematically. (4 points)
Part A)
y = total houses, x = number of years
Neighborhood A y = 30*(1.20)^x
Neighborhood B : y = 45 +3x
Part B) neighborhood A has : 30 *1.2^5 = 74.65 = 75 houses
neighborhood B has: 45 +3(5) = 45 +15 = 60 houses
Part C)
30* 1.2^x = 45 +3x =
x = 3.3
check:
30 *1.2^3.3 = 54.75 = 55
45 + 3(3.3) = 45+9.9 = 54.9 =55
so 3.3 years round to 3 years
Answer:
Part A)
y = total houses, x = number of years
Neighborhood A y = 30*(1.20)^x
Neighborhood B : y = 45 +3x
Part B) neighborhood A has : 30 *1.2^5 = 74.65 = 75 houses
neighborhood B has: 45 +3(5) = 45 +15 = 60 houses
Part C)
30* 1.2^x = 45 +3x =
x = 3.3
check:
30 *1.2^3.3 = 54.75 = 55
45 + 3(3.3) = 45+9.9 = 54.9 =55
so 3.3 years round to 3 years
Step-by-step explanation:
A CD tower is shaped like a cylinder and holds CDs with a diameter of 4.75 inches. If the CD tower is 12 inches tall, what is the volume, in cubic inches, that it can hold? Use 3.14 for pi. Round your answer to the nearest hundredth.
212.54 in3
231.56 in3
850.16 in3
867.34 in3
Answer: 212.54 in3
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Volume of a cylinder: π r² h
Where:
r = radius (also r= diameter /2) h= heightReplacing with the values given:
r = 4.75/2 = 2.375 in
h = 12in
V = π r² h
V= π (2.375)² (12) = 3.14 (5.640625) 12 =212.54 in3
So, the correct option is 212.54in3
Feel free to ask for more if needed or if you did not understand something.