Answers
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Work Shown:
Convert the time 7:45, which represents 7 min 45 sec, to seconds only
7:45 = (7 min) + (45 sec)
7:45 = (7*60 sec) + (45 sec)
7:45 = (420 sec) + (45 sec)
7:45 = (420+45) sec
7:45 = 465 sec
Do the same for 5:51
5:51 = (5 min) + (51 sec)
5:51 = (5*60 sec) + (51 sec)
5:51 = (300 sec) + (51 sec)
5:51 = (300+51) sec
5:51 = 351 sec
So the initial time is 465 seconds and it drops to 351 seconds
Subtract the values to find the amount dropped: 465-351 = 114
Divide that difference over the initial time: 114/465 = 0.24516
Move the decimal over 2 spots to the right to convert to a percentage: 0.24516 --> 24.516%
Then round to the nearest hundredth of a percent (2 decimal places) to go from 24.516% to 24.52% which is our final answer
So the reduction is roughly 24.52%
This means if you took 24.52% of the initial time and subtracted it off, then you'd get to about 351 seconds.
Answer:
24.52%
Step-by-step explanation:
Related Questions
What is the sixth term of the sequence?
an= −3 ⋅ 2n+1
Enter your answer in the box.
a6=
Answers
-3*2(6)+1
-3*12+1
-36+1
-35=a6
Answer: its actually -384 and I TOOK THE TEST I promise !!!
Step-by-step explanation:
the figure is made of up of a cone and a cylinder, to the nearest whole number what is the approximate volume of this figure. PLEASE HELP FAST
Answers
Volume of cylinder = πr²h
π = 3.14
r = 4/2 = 2 mm
h = 2 mm
So, volume of cylinder equals:
[tex]3.14 *(2)^{2}*2 =25.12[/tex] mm³
Volume of cone = [tex] \frac{1}{3} \pi r^{2}h [/tex]
π = 3.14
r = 2 mm
h = 3 mm
So, volume of cylinder equals:
[tex] \frac{1}{3}*3.14* (2)^{2}*3=18.84 [/tex]mm³
Thus, total volume of the figure = 25.12 + 18.84 = 43.96 mm³
A line with a slope of 33 passes through (2,5)2,5. Which choice is an equation of this line? a)y+5=3x+2 b)y-5=3x-2 c) y-5=(x-2) d)y-2=3(x-5)
Answers
Answer:
y - 5 = 3 . (x - 2)
Step-by-step explanation:
A linear equation can be written in point-slope form.
y - y₁ = m. (x- x₁)
where
x is the independent variable
y is the dependent variable
(x₁, y₁) is an ordered pair representing a point through which the line passes
m is the slope
Given the slope is 3 (m = 3) and the line passes through the point (2, 5) (x₁ = 2, y₁ = 5), we can write the point-slope form of the linear equation.
y - 5 = 3 . (x - 2)
I think this might correspond to b, although it should have a parenthesis to be correct.
These are the first sentences in the short story, “the gift of magi” by O. Henry: “one dollar ad eighty/seven cents. That was all. And sixty cents of it was in pennies” what are the possible number of coins to make $1.87? Use the equation that represents the value of the coins to complete the table
Answers
So the rows are read from left to right, now down. This is probably a little late to be answering this, but see how the top row say 4 6 5? 4 quarters = 100, 6 dimes = 60, 5 nickels = 25, all together is 185. It's just asking you to fill in the blanks to make each row equal $1.87. So for pennies, you would put 2 to make 185+2 = 187 or $1.87. I was confused looking at this too. I was staring at it for an hour and I googled to see how other people answered this.
On Monday, more than 500 people attended a county fair. Fourteen of the people who attended the fair that day were selected at random and asked how many rides they went on that day.
a.0
b. 2.8
c. 3
d.8
Answers
Hope this helps!:)
PLZ HELP ME, I AM ONLY IN LITTLE GRADE AND ITS EASY FOR YOU GUYS AND PLZ HELPPPPPPPPPPPP!!!!!!!!!!!
Q:Together, Xavier, Yolanda, and Zachary have $4.44. If each person has the same amount, how much money does each person have?
Answers
To figure out how much money each person has, we need to divide.
4.44 ÷ 3 = 1.48
So each person has $1.48
Hope this helps you!
Always remember, you are a Work Of Art!
- Nicole :) <3
Dwayne wants to buy a bowling ball that has a price of $120. As a member of a bowling league, he is entitled to a 15% discount off the price of the bowling ball. He will also have to pay 6% sales tax on the discounted price of the bowling ball. Dwayne thinks that the final price of the bowling ball can be determined by taking 9% off the original price. Is Dwayne correct? Support your answer with a detailed explanation.
Answers
$120-15%=$102
$102+%6=$108.12
so %6 represents tax
and 15% is his discount
if you were to take away %9 then you would get $109.20
$120-9%=109.20
so Dwayne is incorrect, because $108.12 ( his true final price) isn't equal to $109.20 (the price it would be if it was 9% off)
I hope this helps!
No, Dwayne is not correct.
What is mean by Percentage?A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.
To Calculate the percent of a number , divide the number by whole number and multiply by 100.
Given that;
Dwayne wants to buy a bowling ball that has a price of $120.
And, As a member of a bowling league, he is entitled to a 15% discount off the price of the bowling ball. He will also have to pay 6% sales tax on the discounted price of the bowling ball.
Now,
Here, Dwayne wants to buy a bowling ball that has a price of $120.
Hence, After 15% discount the price is,
⇒ 15% of 120
⇒ 15 x 120 / 100
⇒ $18
Hence, After discount the price is,
⇒ 120 - 18
⇒ $102
And, He will also have to pay 6% sales tax on the discounted price of the bowling ball.
Hence, The price of ball is,
⇒ $102 + 6% of 102
⇒ $102 + $6.12
⇒ $108.12
Since, Dwayne thinks that the final price of the bowling ball can be determined by taking 9% off the original price.
Hence, We can formulate;
⇒ $120 - 9% of 120
⇒ $120 - 10.8
⇒ $109.2
Thus, Dwayne is not correct.
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!!!!!!!!PLEASE HURRY !!!!!!!! The length of the base of a rectangular prism is 8 inches. The width of the prism is 4 1/2inches, and the height is 3 1/2
inches. What is the volume of the prism?
4 A) 84 in3
B) 921
C) 104 in3
D) 126 in3
Answers
Answer:
It is b
Step-by-step explanation:
Kersha has two jobs. During the day she works as an office clerk, and in the evening she works as a cashier. Her office job pays her $12.00 per hour. Her cashier job pays her $8.25 per hour. In one week, Kersha worked 55 hours. She earned a total of $585.
How many hours did Kersha work in each job?
Office clerk: 31 hours; cashier: 24 hours
Office clerk: 20 hours; cashier: 35 hours
Office clerk: 35 hours; cashier: 20 hours
Office clerk: 28 hours; cashier: 27 hours
Answers
Answer: c) Office clerk: 35 hours; cashier: 20 hours.
The correct answer is that Kersha worked as an office clerk for 35 hours and as a cashier for 20 hours.
To solve this problem, we can set up a system of equations based on the information given. Let's denote the number of hours Kersha worked as an office clerk as [tex]\( x \)[/tex] and the number of hours she worked as a cashier as [tex]\( y \).[/tex]
From the problem statement, we know the following:
1. Kersha earns $12.00 per hour at her office job.
2. Kersha earns $8.25 per hour at her cashier job.
3. Kersha worked a total of 55 hours in one week.
4. Kersha earned a total of $585 in one week.
Using this information, we can write two equations:
For the total number of hours worked:
[tex]\[ x + y = 55 \][/tex] (Equation 1)
For the total earnings:
[tex]\[ 12x + 8.25y = 585 \][/tex] (Equation 2)
Now we have a system of two equations with two variables. We can solve this system using substitution or elimination. Let's use the substitution method.
First, we can solve Equation 1 for [tex]\( x \):[/tex]
[tex]\[ x = 55 - y \][/tex]
Now we substitute [tex]\( x \)[/tex] in Equation 2 with [tex]\( 55 - y \):[/tex]
[tex]\[ 12(55 - y) + 8.25y = 585 \][/tex]
Expanding the equation, we get:
[tex]\[ 660 - 12y + 8.25y = 585 \][/tex]
Combining like terms, we get:
[tex]\[ -3.75y = 585 - 660 \][/tex]
[tex]\[ -3.75y = -75 \][/tex]
Dividing both sides by -3.75 to solve for [tex]\( y \)[/tex], we get:
[tex]\[ y = \frac{-75}{-3.75} \][/tex]
[tex]\[ y = 20 \][/tex]
Now that we have the value of [tex]\( y \)[/tex], we can find [tex]\( x \)[/tex] using Equation 1:
[tex]\[ x = 55 - y \][/tex]
[tex]\[ x = 55 - 20 \][/tex]
[tex]\[ x = 35 \][/tex]
Therefore, Kersha worked 35 hours as an office clerk and 20 hours as a cashier. The correct option is:
Office clerk: 35 hours; cashier: 20 hours.
Write each vector as a linear combination of the vectors in s. s = {(2, 0, 7), (2, 4, 5), (2, −12, 13)} (a) u = (−1, 7, −7)
Answers
.. (2, 4, 5)/16 -9*(2, -12, 13)/16 = (-1, 7, -7)
Explain how to find the surface are of a triangular prism using only the the dimensions of the figure.
Answers
A CD which usually sells for $15.78 has a 15% discount. Estimate the amount of the discount.
Answers
[tex]\bf \begin{array}{ccll} amount&\%\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 15.78&100\\ a&15 \end{array}\implies \cfrac{15.78}{a}=\cfrac{100}{15}\implies \cfrac{15.78\cdot 15}{100}=a[/tex]
You need to round 15.78 to get 16. You then multiply 16 to 15 and divide by 100 to get your answer :
2.4
Which would also be $2.40
a pieace of cheese is in the shape of a triangular prism.the dimensions of the cheese are shown below
what is the surface area of the piece of cheese
a)14.5
b)20.5
c)29
d)32
Answers
1) Two triangular faces
2) Three rectangular faces.
Surface area is the SUM of the areas of all of the faces.
Let us find these faces one by one:
1.
As you know, the area of the triangle is:
[tex] \frac{1}{2} * base * height [/tex]
Since, the base = 6 inches, and height = 4 inches;
Therefore, The area of ONE triangle = (1/2) * 6 * 4 = 12 inches squared.
In triangular prism, there are two triangles, therefore,
Two triangular faces = 2 * 12 inches = 24 inches squared --- (A)
2.
Now let us find the areas of three rectangular faces...
Since, two of the three rectangular faces are the same, therefore, we would find the area of one rectangular face, and multiple the result with two to get the total area of two rectangular faces.
Area of one rectangular face = base * height.
Since, base = 0.5 inches, height = 5 inches, therefore,
Area of one rectangular face = 0.5 * 5 = 2.5 inches squared.
Now that we have one rectangular face, therefore,
Area of two rectangular faces = 2 * 2.5 = 5 inches squared.
The area of the third rectangular base = 6 * 0.5 = 3 inches squared
Therefore,
The area of the three rectangular faces = 5 + 3 = 8 inches squared --- (B)
Now add both "area of two triangular faces(A)" and "area of three rectangular faces(B)" to get the final surface area of the triangular prism.
Surface Area of the triangular prism = Area of Two Triangular faces + Area of Three Rectangular faces
Surface Area = 24 + 8 = 32 inches squared
The surface area of the triangular prism = 32 inches squared.
The correct option is: d
-i
Answer:
Answer is d
Step-by-step explanation:
sorry that im 4 years late
To make each costume, Rachel uses 6 yards of material and 3 yards of trim. Suppose she uses a total of 48 yards of material to make several costumes. How many yards of trim does she use? Write the rule you used to find the number of yards to trim
Answers
[tex]48 \div 6 = 8 \\ 8 \times 3 = 24[/tex]
(48/6)3=24
(f/6)3=t f= total fabric used t=total trim used
In rectangle MNPQ with side MN = 16 in, point L is the midpoint of PQ and m∠QLM = 45°. Find the perimeter of the rectangle.
Answers
we know that
MN=16 in-------------> PQ=MN
PQ=16 in
L is the midpoint of PQ-----------> distance QL=PQ/2
QL=8 in
if m∠QLM = 45°
then
MQ=QL
MQ=8 in
Perimeter=[MN]*2+[MQ]*2=16*2+8*2=48 in
the answer is 48 in
Give the other person brainliest they deserve it .
Write a system of equations and solve.
Answers
https://brainly.com/question/8829608
(Extra points)
The lunch bill for Marty and Breanna add a dinner totaled $18.37. Tax on the meal was 6%, and they wanted to leave a 15% tip. How much was the meal including tax and tip?
Answers
Add 6% of this as tax by either multiplying by dinner cost by 1.06 (to get dinner + tax)
For tip... If you calculate the 15% before, then you would add it together with the tax to get 21%, and then your answer would be calculated in the same way as just the tax.
If you tip the amount after tax, then take your answer for the (dinner + tax) part and use the same method, but with 15%.
(dinner + tax) x 1.15 = dinner, tax + tip
Final answer:
To calculate the total cost of Marty and Breanna's meal including tax and tip, add a 6% tax and a 15% tip to the original bill of $18.37 to get a total of $22.23.
Explanation:
To find the total cost of the meal for Marty and Breanna including tax and tip, we first calculate the tax. Since the tax rate is 6%, we convert that to a decimal (0.06) and multiply by the total cost of the meal ($18.37):
0.06 × $18.37 = $1.10 (rounded to the nearest cent).
Next, we calculate the tip, which is 15% of the pre-tax meal cost. We turn 15% into a decimal (0.15) and multiply by the meal cost:
0.15 × $18.37 = $2.76 (rounded to the nearest cent).
To find the total amount paid including tax and tip, we add all the amounts together:
$18.37 + $1.10 + $2.76 = $22.23
So, the total cost of the meal including tax and tip is $22.23.
What postulate is illustrated by the diagram above?
Answers
You work for a furniture moving company. Your boss sends you to the hardware store to buy tie down rope. He tells you to buy the best deal. What is the best deal on rope?
A) 10 feet for $7.00
B) 20 feet for $13.00
C) 50 feet for $28.00
D) 100 feet for $57.50
Answers
Answer:
Option C- 50 feet for $28.00 is the best deal because it offers rope $0.56 per feet.
Step-by-step explanation:
To know what is the best deal on rope, we calculate the price for 1 feet rope from the given deals.
A) 10 feet for $7.00
1 feet = 7.00 ÷ 10 = $0.70
B) 20 feet for $13.00
1 feet = 13.00 ÷ 20 = $0.65
C) 50 feet for $28.00
1 feet = 28 ÷ 50 = $0.56
D) 100 feet for $57.50
1 feet = 57.50 ÷ 100 = $0.575
Option C) 50 feet for $28.00 offers lowest price, so this is the best deal.
Answer:
The best deal is "50 feet for $28.00"
C is correct
Step-by-step explanation:
We need to buy tie down rope for moving furniture.
We have to choose best deal from four option.
We are given length of rope and price of rope.
We can identity best deal if we know the price of rope per feet.
So, first we change each option into per feet.
Option A) 10 feet for $7.00
Price of 10 feet rope = $7
Price of 1 feet rope = $0.70
Option B) 20 feet for $13.00
Price of 20 feet rope = $13.00
Price of 1 feet rope = $0.65
Option C) 50 feet for $28.00
Price of 50 feet rope = $28.00
Price of 1 feet rope = $0.56
Option D) 100 feet for $57.50
Price of 100 feet rope = $57.50
Price of 1 feet rope = $0.5750
Now, we arrange each per feet price and check best deal.
0.70 > 0.65 > 0.57 > 0.56
The minimum cost is $0.56
Hence, The best deal is "50 feet for $28.00"
LEon made 4 liters of lemonade for the party, but it was too strong, it was 14% lemon juice. How much 8% lemonade should he add to make a mixture that is 10% lemon juice?
can someone show me how to solve this using the table or bucket method? thanks
Answers
For a mixture of solutions to form a resulting solution, we know
V1 * N1 + v2 * N2 = V * N
where, V1 = Volume of mixture of 1 N1 = Concentration of mixture 1V2 = Volume of mixture of 2 N2 = Concentration of mixture 2
V = volume of mixture N = Concentration of mixture
So solving we get:
(4+x)*10 = 4*14 + x * 8or, 10x-8x = 4*14-4*10or, 2x = 16or x = 8
so 8 litres of the solution B must be added to the solution
each week Samantha can pay as much $15 for her school at lunch. Write an inequality showing how much Samantha spends at lunch.
Answers
Let us say Samantha spends $x for her school at lunch every week.
We are given that she can spend as much as $15 every week for her school at lunch every week.
As much as stands for maximum quantity that she can spend.
So $15 is the maximum she can spend.
Writing an inequality,
[tex] x \leq 15 [/tex]
The rectangular top of his table has an area of 3^7 square inches and a length of 3^4 inches. What is the width of the table top?
A. 9 inchesB. 27 inchesC. 2,187 inchesD. 59,049 inches
Answers
Answer:
27
Step-by-step explanation:
Because 3 plus 7 equals 12 plus another 9 equals 27
The width of the rectangular table top is 27 inches.
The correct answer is option (B).
What is the area of rectangle?A = l × w, where 'l' is the length and 'w' is the width of the rectangle
For given question,
The rectangular top of Karim's table has an area of [tex]3^7[/tex] square inches and a length of [tex]3^4[/tex] inches.
[tex]\Rightarrow A =3^7~sq.in.~,l=3^4~in.[/tex]
Using the formula for the area of the rectangle,
[tex]\Rightarrow A=l\times w\\\\\Rightarrow 3^7=3^4\times w\\\\\Rightarrow w=\frac{3^7}{3^4}\\\\ \Rightarrow w=3^7\times 3^{-4}\\\\\Rightarrow w=3^{7-4}\\\\\Rightarrow w=3^3\\\\\Rightarrow w=27~in.[/tex]
Therefore, the width of the rectangular table top is 27 inches.
The correct answer is option (B).
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Points ABCD are connected to form rectangle ABCD. If G is plotted at (7, 4), would rectangle EFGH be similar to rectangle ABCD? Explain.
Answers
We suspect additional coordinates (possibly in a diagram) are missing from the problem statement.
ANSWER FAST PLEASE 25 PTS
Which of the following statements best describe(s) a pair of similar polygons, ABCD and EFGH?
Polygons ABCD and EFGH have different shapes and are always different sizes.
Polygons ABCD and EFGH have similar shapes and are sometimes different sizes.
Polygons ABCD and EFGH have the same shape and are sometimes different sizes.
Polygons ABCD and EFGH have the same shape and are always different sizes.
Answers
Polygons ABCD and EFGH have the same shape and are sometimes different sizes.
Please help me with questions 18 and 19
Answers
--------------------------------------------------------------
19)
Answer is choice A) 2
CB/GF = CD/GH
6/3 = 4/GH
6*GH = 3*4
6*GH = 12
GH = 12/6
GH = 2
a cafeteria table has a length of 8 feet and a width of 3 feet. If 3 tables are pushed together, what is the combined area of the tables?
Answers
can somebody please show me how to find A? thanks
Answers
Answer C
Using Thales, 3/8=5/A==>A=5*8/3=40/3
On a map, the distance between two historical markers is 4.5 inches, and 2.5 inches represents 10 miles. What is the actual distance between the historical markers? Enter your answer in the box.
Answers
tuckers bedroom is a rectangle that measures 3 1/3 yards by 4 1/2 yards. His dad buys two area rugs that each has a length of 4 yards. One rug has an area of 16 square yards. The other is 12 square yards. Which rug will fit Tucker's room? a length of 4 yards. One rug has an area of 16 square yards. The other is 12 square yards. Which rug will fit Tucker's room?
Answers
Rug 1 has a area of 16 square yards, meaning that the width is also 4 yard(L*w=16, where Length=4)
Rug 2 has a Length of L=4 but the area is just 12 square yards, so here we have the width of 3 yards (12/4=3)
the rug number 2 will fit in tucker's bedroom
Answer:
Step-by-step explanation:we have 2 area rugs, and each has a length of 4 yards
Rug 1 has a area of 16 square yards, meaning that the width is also 4 yard(L*w=16, where Length=4)
Rug 2 has a Length of L=4 but the area is just 12 square yards, so here we have the width of 3 yards (12/4=3)
the rug number 2 will fit in tucker's bedroom
Two secant segments intersect outside a circle as shown. What is the value of x?
Answers
3*13=2*(x+2)
39=2x+4
2x=35
x=17.5