Jamie is painting a toybox shaped like a rectangular prism with dimensions 3 feet by 2 feet by 1 foot. If she is planning to paint all sides of the box, what is the surface area that she must cover?
You place a mirror on the ground 6 feet from the lamppost. You move back 3 feet and see the top of the lamppost in the mirror. If you are 5 feet tall, what is the height of the lamppost?
Answer: 10 feet
Step-by-step explanation:
Let h be the height of lamppost.
Since both the person and the lamppost are standing vertical to the ground, making similar right triangles.
Because the two triangles are similar, the ratio of their sides is the same.
Therefore, we have
[tex]\frac{\text{height of lamppost}}{\text{distance of lampost from mirror}}=\frac{\text{height of person}}{\text{distance of person from mirror}}\\\\\Rightarrow\frac{h}{6}=\frac{5}{3}\\\\\Rightarrow\ h=\frac{6\times5}{3}\\\\\Rightarrow\ h=10[/tex]
Hence, the height of the lamppost = 10 feet.
Setting up a proportional relationship between mirror and lamppost, the height of the lamppost is 10 feets.
Height of person, Hp = 5 feets Distance of person form mirror, Dp = 3 feets Distance of Lampost from mirror, Dm = 6 feets Height of Lampost = Hl =?Setting up a proportional relationship :
[tex]\frac{Hp}{Dp} = \frac{Hl}{Dm} [/tex]
[tex]\frac{5}{3} = \frac{Hl}{6} [/tex]
Cross multiply :
Hl × 3 = 6 × 5
3Hl = 30
Hl = (30 ÷ 3)
Hl = 10
Therefore, the height of the lamppost is 10 feets.
Learn more :https://brainly.com/question/18109354
Ryan earns $20.16 working for 3 hours. How much does he earn per hour?
Which description best describes the graph?
Linear increasing
Linear decreasing
Nonlinear increasing
Nonlinear decreasing
Answer: Hello there!
Let's analyze the graph.
The first thing you can see is that when x increases, y decreases. This means that our function is decreasing.
Now we need to see if it is linear or nonlinear. You can see that the function starts decreasing slowly and it gets sharper when x grows (in the graph you can see a little curve). A linear function is graphed with a straight line, and we can see that is not this case, then our function is nonlinear.
So the correct answer is Nonlinear decreasing, the fourth option.
Which of the following statements contain a variable? Check all that apply.
A. Half the speed of the car.
B. They scored 27 points.
C. Eighty miles per hour.
D. The number of different colors on the page.
How many cups of sorbet are used in 8 cups of punch. Ginger ale= 40%. Orange juice=25%. Pineapple=20%. Sorbet=15%
complete the factored form of the algebraic expression 18a + 3 = 3( _____+_____)
Mr.halls car used 2.2 gallons of gasoline this week. He drove a total of 37.9 miles. If the car got the same gas mileage for the entire trip.hiw many miles did the car travel for each gallon of gasoline.
Mr. Hall's car traveled approximately 17.23 miles per gallon of gasoline when he drove a total of 37.9 miles using 2.2 gallons.
Explanation:To calculate the number of miles Mr. Hall's car traveled per gallon of gasoline, we need to divide the total miles driven by the total gallons of gasoline used. Mr. Hall drove a total of 37.9 miles and used 2.2 gallons of gasoline. Thus, to find the miles per gallon (MPG), the calculation would be:
MPG = Total Miles Driven / Total Gallons of Gasoline Used
MPG = 37.9 miles / 2.2 gallons
MPG = 17.23 miles per gallon
So, for each gallon of gasoline, Mr. Hall's car traveled approximately 17.23 miles.
I have no idea how to do this can you help me?
Use the distributive property to evaluate each expression (6+4)(-12)= -6(9-4)= 5(-6+4)= 4(8 - 7)= (5 - 7)(-3)=
To evaluate expressions using the distributive property, you multiply the term outside the parenthesis by each term inside it separately. This process is carried out for each term, considering the sign rules for multiplication. The result is the sum of these individual products.
Explanation:When using the distributive property to evaluate each expression, we multiply the outer number by each of the terms inside the parenthesis.
For (6+4)(-12), we distribute -12 to both 6 and 4: (-12 × 6) + (-12 × 4) = -72 + -48 = -120.In -6(9-4), we distribute -6 to 9 and -4: (-6 × 9) + (-6 × -4) = -54 + 24 = -30.For 5(-6+4), we distribute 5 to -6 and 4: (5 × -6) + (5 × 4) = -30 + 20 = -10.With 4(8 - 7), we distribute 4 to 8 and -7: (4 × 8) + (4 × -7) = 32 - 28 = 4.Lastly, for (5 - 7)(-3), we distribute -3 to 5 and -7: (-3 × 5) + (-3 × -7) = -15 + 21 = 6.Remember, when multiplying two numbers with similar signs, the result is positive, and when multiplying numbers with opposite signs, the result is negative.
Help me simple this 42/90
Draw a picture that shows an example of a product of two even numbers. Write the matching multiplication sentence.
Trisha's garden is 9.87 m long and 1.09 m wide what is the area of her garden
show two ways 5 people can share a 3 segment chewy fruit worm equally
Method 1: Each person gets one segment, and the remaining two segments are cut into halves.
Method 2: Each person gets a half segment, and the remaining segments are cut into thirds.
Method 1: Each person gets one segment, and the remaining two segments are cut into halves:
Step 1: Give one segment to each person.
Step 2: Cut the remaining two segments into halves.
Step 3: Distribute the halves evenly among the five people.
So, each person will get one whole segment and one half segment.
In total, each person will get 1.5 segments.
Method 2: Each person gets a half segment, and the remaining segments are cut into thirds:
Step 1: Cut each of the three segments into thirds.
Step 2: Give one-third of each segment to each person.
Step 3: Each person will also get a half segment from the remaining two segments.
So, each person will get 0.5 segments from the three initial segments and 0.5 segments from the two remaining segments.
In total, each person will get 1 segment.
Both methods ensure that each of the 5 people gets an equal share of the 3-segment chewy fruit worm.
if 2 2/3 + 1 4/9 how do i = that into a fraction to make it be more understandable
Is 5/8 greater than 1/2
The greater number between 5/8 and 1/2 is 5/8
How to determine which fraction is greaterFrom the question, we have the following parameters that can be used in our computation:
5/8 or 1/2
Express them as decimals
so, we have the following representation
5/8 = 0.625
1/2 = 0.50
By comparison
0.625 is greater than 0.50
using the above as a guide, we have the following:
This means that the greater number is 5/8
Read more about fractions at
brainly.com/question/31896427
#SPJ6
how are adding and subtracting decimals different from multiplying decimals
A bakery used 475 pounds of apples to make 1,000 apple tarts .Each tart contains the same amount of apple. How many pounds of apples are used in each tart
By dividing 475 pounds of apples by 1,000 tarts, we find that each tart contains 0.475 pounds of apples.
Explanation:To find out how many pounds of apples are used in each tart, we divide the total amount of apples used by the total number of tarts made. In this case, the bakery used 475 pounds of apples to make 1,000 apple tarts. So, we calculate 475 pounds ÷ 1,000 tarts, which gives us 0.475 pounds of apples per tart.
Final answer:
To find out how many pounds of apples are used in each tart, divide the total amount of apples used by the number of tarts. In this case, each tart contains 0.475 pounds of apples.
Explanation:
To find out how many pounds of apples are used in each tart, we need to divide the total amount of apples used by the number of tarts. In this case, the bakery used 475 pounds of apples to make 1,000 apple tarts. So, to find out how many pounds of apples are used in each tart, we can divide 475 by 1,000:
475 pounds ÷ 1,000 tarts = 0.475 pounds per tart
Therefore, each tart contains 0.475 pounds of apples.
during the 2011 season, a quarterback passed for 302 yards per game. he played 16 games how many total yards did he have?
4,832 yards
Further explanationGiven:
During the 2011 season, a quarterback passed for 302 yards per game. He played 16 games.Question:
How many total yards did he have?
The Process:
During the 2011 season, a quarterback passed for 302 yards per game, and he played 16 games.
To find out how many yards he has in the 2011 season, we must multiply the number of passes per game by the number of games he has played.
[tex]\boxed{ \ 302 \times 16 = \ ? \ }[/tex]
Let us use the following strategy:
[tex]\boxed{ \ 302 = 300 + 2 \rightarrow (300 + 2) \times 16 = \ ? \ }[/tex]
Recall that [tex]\boxed{ \ a \times (b + c) \leftrightharpoons (a \times b) + (a \times c) \ }[/tex]
[tex]\boxed{ \ = (300 + 2) \times 16 \ }[/tex]
[tex]\boxed{ \ = (300 \times 16) + (2 \times 16) \ }[/tex]
[tex]\boxed{ \ = (3 \times 16 \times 100) + (2 \times 16) \ }[/tex]
[tex]\boxed{ \ = (48 \times 100) + (32) \ }[/tex]
[tex]\boxed{ \ = (4,800) + (32) \ }[/tex]
[tex]\boxed{\boxed{ \ 4,832 \ }}[/tex]
Thus, he had 4,832 total yards during the 2011 season.
Learn more How many times does he switch strokes during the race? brainly.com/question/11494844 7 copies of the sum of 8 fifths and 4 brainly.com/question/961462 [tex]\frac{2}{3}[/tex] of the product of [tex]\frac{3}{8}[/tex] and 16 brainly.com/question/961462Keywords: during, the 2011 season, a quarterback passed, for 302 yards, per game, and, he played, 16 games, how many, total, he have, 4,832
Five less than 3 times a certain number is equal to the original number plus 7 what is the original number? ´-`)
Five less than 3 times a certain number is equal to the original number plus 7. The original number is 6.
How to estimate the original number?From the above given information, we get
3x-5 = x+7
Adding 5 to both sides of the equation, we get
3x-5+5 = x+7+5
Simplifying the above equation
3x = x+12
Subtract x from both sides
3x-x = x+12-x
Simplify
2x = 12
Divide both sides by 2
[tex]$\frac{2 x}{2}=\frac{12}{2}[/tex]
Simplify
x = 6
Therefore, the original number is 6.
To learn more about algebra
https://brainly.com/question/17201233
#SPJ2
Final answer:
To solve the student's problem, which is an algebraic expression, we set up an equation (3x - 5 = x + 7) and solve for x to find that the original number is 6.
Explanation:
The equation inspired by the student's question can be represented algebraically. This type of problem is a linear equation and an essential concept in algebra.
First, let's let the variable x represent the certain number. The problem states that five less than three times this number is equal to the number plus seven. The equation based on the problem statement is:
3x - 5 = x + 7
To solve for x, we can simplify and rearrange the equation:
Move all the terms with x to one side of the equation by adding -x to both sides:
3x - x - 5 = x - x + 7 2x - 5 = 7
Add 5 to both sides to isolate the term with x:
2x - 5 + 5 = 7 + 5 2x = 12
Divide both sides by 2 to solve for x:
2x/2 = 12/2 x = 6
Therefore, the original number, represented by x, is 6.
John is planning a trip to Disneyland in Los Angeles, CA. He is leaving his house in Sacramento with a full tank of gas. The table below shows how much gas he will use along the way.
When 10 is added to half the sum of a number and 8, the result is 30. What is the number
The mystery number is really 32.
What does it mean to solve an equation?An equation represents equality of two or more mathematical expression.
Solutions to an equation are those values of the variables involved in that equation for which the equation is true.
The mystery number = M
The sum of the number and 8 = M + 8
Half of that sum = (1/2)(M + 8)
10 added to that sum = (1/2)(M + 8) + 10
Thus (1/2) (M + 8) + 10 = 30
Now, subtract 10 from each side:
(1/2) (M + 8) = 20
Multiply each side by 2 :
M + 8 = 40
Subtract 8 from each side:
M = 32 .
So the mystery number is really 32.
Learn more about solving equations here:
https://brainly.com/question/18015090
#SPJ2
Question#2: a wise man once said 300 reduced by 4 times my age is 32 what is his age
Please can you find this out thx
17 only
what's 3 3/4 x 2? SIMPLIFIED
A baseball pitcher can throw a ball 120 feet per second. At his rate, how long would it take the ball to travel 300 feet? (Show your work)
a nail is 0.1875 inches thick.what is it's thickness as a fraction?
Final answer:
The thickness of a nail that is 0.1875 inches can be converted to a fraction by expressing it in terms of eighths of an inch, resulting in a fractional thickness of 3/16 inches.
Explanation:
To convert the thickness of a nail from inches to a fraction, we can express the decimal 0.1875 inches in terms of fractional parts of an inch. Since there are 16 eighths in a whole, we can multiply both the numerator and denominator of the fraction 1875/10000 by a number that gives us a denominator that is a multiple of 8. Multiplying both by 2 gives us 3750/20000, which simplifies to 3/16 when we divide both numerator and denominator by 1250.
Therefore, the thickness of the nail is 3/16 inches as a fraction.
Sue likes to be help____ and clean up her table
to figure out how many hours it will take to drive from his home to his's cousin's house,a student divides 289 by 60 and estimates that it will take about 4.5 hours.explain whether you think this a reasonable estimate
The sum of 3 fifteens and 4 twos