Answers
Answer:
width: 2 : 15volume: 8 : 3375surface area: 4 : 225Step-by-step explanation:
Given a model has a scale factor of 2:15 with respect to the original car, you want to know the ratios of model : original for width, volume, and surface area.
RatiosThe scale factor is the ratio of linear dimensions, such as width. This means the ratio of widths will be 2:15, the same as the scale factor.
Areas have units of the square of a linear dimension. Hence the ratio of areas is the square of the ratio of linear dimensions, the square of the scale factor. The ratio of surface areas will be 2²:15² = 4:225.
Volumes have units of the cube of a linear dimension. Hence the ratio of volumes is the cube of the ratio of linear dimensions, the cube of the scale factor. The ratio of volumes will be 2³:15³ = 8:3375.
The model : original ratios are ...
width: 2 : 15volume: 8 : 3375surface area: 4 : 225<95141404393>
Related Questions
Solve 2y2 – 22y + 56 = 0 by factoring. Enter the numbers from least to greatest.
y= _____ , ______
Answers
Those are the answers.
Question 1: Rory finds a toy that costs $11.00. She pays $0.86 in tax. What was the sales tax rate?
Question 2: A customer pays $3.22 in tax for an item they bought at a 5.5% tax rate. How much was the original price of the item?
Question 3: Yolanda buys jeans at store A that cost $22.00 before tax, and she buys jeans at store B that cost $20 before tax? Assuming a 6% sales tax, how much did she have to pay in total for both pairs of jeans?
Answers
Answer:
1.The answer to question 1 is 9.46
2.The answer to question 2 is 17.71
3.The answer to question 3 is 2,640
(I hope I helped you) =)
Julia wants to put $56,000 into a savings account for 8 years and increase her total to at least $100,000. Assuming the interest is not compounded, what rate of return does the account need to earn?
Answers
Answer:
the account needs to earn a rate of return of at least 9.82% per year to increase Julia's total to $100,000 in 8 years with simple interest.
Step-by-step explanation:
To find the rate of return that the account needs to earn, we can use the simple interest formula:
Simple Interest = Principal x Rate x Time
Where:
- Principal = $56,000
- Time = 8 years
- Simple Interest = $100,000 - $56,000 = $44,000
Plugging in the values, we get:
$44,000 = $56,000 x Rate x 8
Simplifying the equation, we get:
Rate = $44,000 / ($56,000 x 8) = 0.0982 or 9.82%
Therefore, the account needs to earn a rate of return of at least 9.82% per year to increase Julia's total to $100,000 in 8 years with simple interest.
Answer: 9.82%
Step-by-step explanation:
So first of all we need to put down our formulae. We know that:
Simple interest = Principal × Time× Rate / 100
However the question is looking for Rate , therefore we must re -arrange the equation and make Rate the subject . This will give us :
Rate= Interest × 100 / Time × Principal
Now , the question tells us that the Principal is $56,00 and the time is 8 years , but we do not know the interest. In the case , we will use the equation :
interest =Amount -Principal to find the interest ,since the total amount has been given to us.
100,000 - 56,000 = 44,000
Principal =56,000
Time = 8
Interest=44,000
Using the first formulae:
44,000×100 / 8×56,000 = 9.8
Rate is always in % so our answer is 9.82%
someone please help me ASAP
Answers
Answer:
Step-by-step explanation
In this problem, the question asks us for 3 parts
a) the predicted hourly pay rate for a cashier who doesn't have any experience.
In this problem, the scatterplot was reduced into a linear function modeled by the equation y=0.94x+7.86 where y is the pay in $ per hour and x is years of experience indicating pay is dependent on the independent factor of years of experience. 0 years when plugged into the equation yields this through substitution. 0.94(0)+7.86=7.86$ which is the y-intercept
b)this is simply substitution as one can plug in 7 as x 0.94(7)+7.86=14.44$ or appx. 14$
c) for this problem it asks us the predicted difference in the hourly pay rate however the equation y=0.94x+7.86 tells us for every x year pay goes up an average of 0.94$, therefore, the increase is 0.94$.
Overall, this problem challenges the student's understanding of linear equations and the meaning of x and y in relation to one another in a graph.
can someone please help Ill give 40 points
Answers
Answer: C 138.5
Step-by-step explanation:
Answer:B
Step-by-step explanation:2(3.14)(5.8)(7.6)+2(3.14) {(5.8)to the second power.}
Now that you have studied this lesson, write a summary of the concepts in your own words. Your summary should contain a description of the Commutative, Associative, and Distributive properties.
Answers
Answer:
is 84 the answer you where looking for?
please help and try to explain thanks
Answers
Answer:
sorry
Step-by-step explanation:
i don't know
The area of triangle ABD is 50cm, and one of its sides is 10cm in length. Find one of the heights of the triangle.
Answers
Answer:
10cm
Step-by-step explanation:
If you want to find one of the heights of the triangle, you need to use some math magic. The magic spell is:
A = (1/2) * b * h
where A is the area, b is the base, and h is the height. Don't ask me why, it just works.
Now, we know that the area of triangle ABD is 50 cm and one of its sides is 10 cm. We can pretend that this side is the base of the triangle. Why? Because it makes our life easier. Trust me.
Then we put these numbers into the magic spell and we get:
50 = (1/2) * 10 * h
Now we need to solve for h, which is the height we want. To do that, we need to do some algebra. Don't worry, it's not that hard. Just follow these steps:
- Multiply both sides by 2. This gives us:
100 = 10 * h
- Divide both sides by 10. This gives us:
10 = h
- Celebrate! We found the height!
So, one of the heights of the triangle is 10 cm. Isn't math fun?
Area of triangle = 1/2 × base × height
We know the area of the triangle is 50 cm², and one of the sides (which is also the base) is 10 cm. Let's substitute these values in the formula and solve for the height:
50 = 1/2 × 10 × height
Multiplying both sides by 2, we get:
100 = 10 × height
Dividing both sides by 10, we get:
height = 10 cm
Therefore, the height of triangle ABD is 10 cm.
Answer needed by 1:20pm (does anyone know how to find all answers to IXL Y.11???)
Answers
Answer:
91ft^2
Step-by-step explanation:
A = w*l
first, solve for the bottom rectangle
w = 7ft
l = 8ft
7ft * 8ft = 56ft^2
then for the second rectangle
l = 5ft
w = 7ft
5ft*7ft = 35ft^2
total area = rectangle 1+2
so 35ft^2+56ft^2=91ft^2
Answer:
The answer for the Area of the shape is 91ft²
Step-by-step explanation:
Area of the shape =Area of Bigger rectangle+ Area of small rectangle
A=L×B+l×b
A=7×8+5×7
A=56+35
A=91ft²
Please helppppppppppppp
Answers
Answer: B
Step-by-step explanation: stop playin !
Brainlist pls
1. there is a box of supplies on the end of a rope that is on a pulley. The pulley has a radius of 1/4 foot.
A . How far can you move the box of supplies in 8 rotations of the pulley? Show and explain all of your work
B. How far can you move the box of supplies in 8 rotations if the radius of the pulley is doubled? Show and explain all of your work.
Answers
Answer:
to put it simply it's a pretty easy question and it's b
I need help on this question
Answers
Answer:
D 64.5 square centimeters
Step-by-step explanation:
the hexagon can be divided into 6 identical triangles with base 5cm and height 4.3cm
Area of the hexagon:
(5 x 4.3 /2) x 6 = 64.5
2023
The following system of linear equations is shown in the graph.
y equals one fourth times x minus 1
x − 4y = 4
a coordinate plane with two lines that pass through the points 0 comma negative 1 and 4 comma 0
How many solutions does the system of linear equations have?
No solution
Infinitely many solutions
One solution at (4, 0)
One solution at (0, −1)
Answers
The system of linear equations is given as:
y = 1/4x - 1
x - 4y = 4
To find the solution, we can substitute y in the second equation with 1/4x - 1:
x - 4(1/4x - 1) = 4
x - x + 4 = 4
4 = 4
The equation 4 = 4 is always true, which means that the system of linear equations has infinitely many solutions.
Therefore, the answer is:
Infinitely many solutions.
The values in the table describe a data set.
Minimum 20
Mean 30
Mean Absolute Deviation 3.5
Median 35
Interquartile Range 10
Maximum 55
Which value can be used to describe how the values in the data set vary with a single number?
A. median
B. maximum
C. interquartile range
D. mean
Answers
The IQR is 10, indicating the middle 50% of the data values lie within the range of 28 to 43 (35 +/- 10 is 28-43).
The other choices are:
Mean (30) - Describes the central tendency but not variability.
Median (35) - Also describes central tendency but IQR gives a better sense of spread.
Maximum (55) - Only describes the upper limit, not variability.
So the interquartile range (IQR) of 10 is the best choice to capture how spread out or varied the values in the data set are.
The answer is C. interquartile range
Answer:
D. Mean Absolute Deviation
PLSSS HELP SIMPLE VOLUME OF PRISM
Answers
Answer: 2.686 cubic feet
Answer:
42,840
Step-by-step explanation:
21x15x17x8=42,840
what does y=?????????????
Answers
Answer:
y is used as a variable.
Step-by-step explanation:
We use y to create an equation.
It doesn’t have a definite value.
Hope my answer helps you ✌️
Mark BRAINLIEST
Answer:
Y
usually it's used when your referring to equations that you graph, like using a variable with x
y is probably the first variable you'll come across
Y-AXIS
- a VERTICAL number line
VERTICAL DEFINITION (if you don't know what it means) - at right angles to a horizontal plane; in a direction, or having an alignment, such that the top is directly above the bottom.
Fill out the answers, I'm stuck on these
The police ___ foul play
The planets ___ around the sun
The cats lived in the ____ in between the buildings
The ___ boy took all the cookies
The students worked at a ____ pace to finish their work.
Newspapers are recyclable; glass bottles are ____.
Answers
Answer:
1 at
2are
3stay
4young
5speedy
6to
Step-by-step explanation:
2.are
3.room
4.stubborn
5.fast
6too
Can anyone explain how to do this, please??
Answers
Answer: ²⁄₉ (2 over 9)
Step-by-step explanation: Cross out the common factor: ((⁴⁄₃-½)+½)÷6
Rewrite fractions using the Least Common Denominator: (⁸⁻³⁄₆+½) ÷ 6
Calculate the sum or difference: (⅚ + ½) ÷ 6
Rewrite fractions using the Least Common Denominator: ⁵⁺³⁄₆ ÷ 6
Calculate the sum or difference: ⁸⁄₆ ÷ 6
Cross out the common factor: ⁴⁄₃ ÷ 6
Divide a fraction by multiplying its reciprocal: ⁴⁄₃ x ⅙
Cross out the common factor: ⅔ x ⅓
Write as a single fraction: ²⁄₃ x ₃
Calculate the product or quotient: ²⁄₉
Can someone please explain this to me? I don't know how to do it.
Answers
Answer:
tough one
Step-by-step explanation:
HELP!!! PLEASE
An element in Group 2 of the periodic table likely has which characteristics?
Question 2 options:
A.) shiny solid, conducts heat and electricity, easily bends
B.) shiny solid, does not conduct heat but does conduct electricity, crumbles easily
C.) dull solid, does not conduct heat or electricity, does not bond with other atoms
D.) gas, does not conduct heat or electricity, easily bonds with other atoms
Answers
Answer:is c
Step-by-step explanation:Group 2: The Alkaline Earth Metals – beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra) are shiny, slivery-white, somewhat reactive metals. Beryllium, strontium, and barium are rare, and radium is unstable and highly radioactive.
You go to the ice cream shop with your friends and you can choose an ice cream, a topping and sprinkles. How many different sundaes can you make when you order one flavor of ice cream, one topping and one color of sprinkles from the chart below? Show all possible outcomes in a tree diagram. SHOW ALL YOUR WORK
Ice Cream
Topping
Sprinkles
Chocolate
Vanilla
Strawberry
Fudge
Marshmallow
Chocolate
Rainbow
Answers
Answer:
There should be 9 possible outcomes, your question's information was a bit confusing on which were the flavors and the topping and color of sprinkles. Obviously, if this doesn't apply to your question, you can use it as a guide. Just multiply how many things are together and you can get the number of possible outcomes.
This scale drawing shows a reduction in a figure.
What is the value of x?
Enter your answer as a decimal in the box.
x = ?
Answers
Answer: 2.25
Step-by-step explanation:
8/3=6/x
To solve this problem, we can set up the proportion shown above. Then, we can solve it using cross-products.
3×6=18
8×x=18
x=18/8
x=2.25
For more resources on scale drawings, check out "What is a Scale Drawing?" by Virtual Nerd.
All the best on your homework!
x = 2.25
please help thx
3b–3>3
Answers
Answer:
If it is a inequality it would be b>2
Step-by-step explanation:
Move all terms not containing b to the right side of the inequality.
Add 3 to both sides of the inequality.
3b>3+3
Add 3 and 3.
3b>6
Divide each term in 3b>6 by 3 and simplify.
Divide each term in 3b>6 by 3
3b/3 > 6/3
Simplify the left side.
Cancel the common factor of 3.
b>6/33
Simplify the right side
Divide 6 by 3.
b>2
Answer:
b > 2
Step-by-step explanation:
3b-3 > 3
3b-3 [+3] > 3 [+3]
3b > 6
b [/3] > 6 [/3]
b > 2
Issey's current location is the Lincoln Memorial. She uses her smartphone to look up walking directions to the Jefferson Memorial. She walks 1/2 mile every 1/8 hour. If the distance between the 2 memorials is 1 1/5 miles, it will take Issey how many minutes to walk from the Lincoln Memorial to the Jefferson Memorial.
a. 18 minutes
b. 24 minutes
c. 36 minutes
d. 72 minutes
Answers
To find out how long it will take Issey to walk from the Lincoln Memorial to the Jefferson Memorial, we need to divide the total distance by the distance she covers in one hour, and then convert the result to minutes.
First, let's convert Issey's walking speed to miles per hour:
1/2 mile every 1/8 hour = 4 miles per hour
Now we can calculate the time it will take Issey to walk the 1 1/5 miles:
Time = Distance ÷ Speed
Time = 1 1/5 miles ÷ 4 miles per hour
Time = 0.3 hours
Finally, let's convert this to minutes:
0.3 hours x 60 minutes per hour = 18 minutes
Therefore, it will take Issey 18 minutes to walk from the Lincoln Memorial to the Jefferson Memorial.
It will take Issey 288 minutes to walk from the Lincoln Memorial to the Jefferson Memorial.
Explanation:To find out how long it will take Issey to walk from the Lincoln Memorial to the Jefferson Memorial, we can divide the total distance by the walking speed. Issey walks 1/2 mile every 1/8 hour, which is equivalent to 4/8 miles per hour or 1/4 miles per hour. The distance between the two memorials is 1 1/5 miles, which is the same as 6/5 miles. To find the time it takes, we divide the distance by the speed: (6/5) / (1/4) = 24/5 = 4.8 hours. To convert this to minutes, we multiply by 60: 4.8 * 60 = 288 minutes.
Learn more about Walking Time here:https://brainly.com/question/32891875
#SPJ2
Garret is designing a poster for a school project. He wants to paint the edge of the poster using gold paint. The rectangular poster has a length of 24 inches and a width of 18 inches.
What is the perimeter of the poster?
Answers
Answer:84
Step-by-step explanation:
24+24+18+18=84
Does coordinate x or coordinate y represent a greater number in the following rectangle?
Answers
Answer:
Y stands for the bigger number.
Step-by-step explanation:
We observe that the x-values of (2,7) and (x,3) are both 2. In contrast, Y is on the same y-value as (4,3), therefore it will be 4. As 4 > 2, Y is the correct response.
Answer: Co-ordinate y.
Step-by-step explanation:
What is the area of this figure?
Answers
Answer:
105 square kilometres
Step-by-step explanation:
7×9=63
8×4=32
5×2=10
63+32+10=105 square kilometres
pls help me i cant get it
Answers
Answer:
33 units²
Step-by-step explanation:
Easiest way to approach this is to find the area of the rectangle, then subtract the area of the triangle.
Rectangle Area = length x width = 7 x 6 = 42
Area of triangle = 1/2bh = 1/2(6)(3) = 9
Area of the shaded figure = 42 - 9 = 33 units²
George wrote seven tests and each was marked out of 100. No two of his marks were the same. He recorded the seven marks to do a statistical analysis. He accidentally recorded his highest mark higher than it actually was. How many of the following are altered because of his mistake? 1. Mean 2. Median 3. Minimum test score 4. Range
Answers
Explanation: median isn't affected because it is the middle value of all the values. If the highest score is already at the end of the list, then it won't go up or down if the score is even higher. Minimum isnt affected because that is the lowest score, which has seemingly been entered correctly. Mean is affected because it is the average. If one score is higher than it should be, it will raise the average. Range isnaffected because it is the number in between the max and min (max-min). If the max is higher, then the range increases
Mean: Calculated by adding all the test scores together and then dividing by the total number of tests, so the error in the highest score does not affect the mean.
Median: Calculated by finding the middle value in a set of data, so the error in the highest score does not affect the median, as it will still be the fourth highest test score.
Minimum: The lowest test score remains the same, as it will not be affected by the error in the highest score.
Range: Calculated by subtracting the lowest test score from the highest score, so if the highest score is incorrect, the range will also be incorrect.
Therefore, only the maximum score and the range are altered by George's mistake, and the mean, median, and minimum score remain the same.
I hope this helps!
PLS help me with math its Transversals
Answers
Answer:1)Vertically Opposite.2)120.3)Co-Interior
Step-by-step explanation: