The simplest form is 3/40
What is fraction?A fraction is a part of a whole. In arithmetic, the number is expressed as a quotient, in which the numerator is divided by the denominator.
Given:
30 * 1/4%
= 30* 1/400
= 30/400
=3/40
=0.075
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Add.
(6x^3+3x^2−2)+(x^3−5x^2−3)
Express the answer in standard form.
is this in standard form ? if it isn't then what would it be in standard form ?
Figure ABC is to be translated to Figure A'B'C' using the rule (x, y) → (x−3, y+4). Triangle ABC on the coordinate plane with the ordered pairs for A as 1,1, B as 2,5, and C as 3,2. Which coordinates will best represent point A'? (−2, 5) (4, −3) (−2, −3) (4, 5)
Community coffee company wants a new flavor of cajun coffee. how many pounds of coffee worth $7 a pound should be added to 20 pounds of coffee worth $2 a pound to get a mixture worth $5 a pound
Let us say that:
x = pounds of $7 coffee
So that:
7 x + 2 * 20 = 5 * (x + 20)
7x + 40 = 5x + 100
2x = 60
x = 30 pounds
Therefore 30 pounds should be added.
To get a mixture of coffee worth $5 a pound, you should add 30 pounds of coffee worth $7 a pound to 20 pounds of coffee worth $2 a pound.
Explanation:To solve this problem, we can use the method of mixtures. Let's assume that x pounds of coffee worth $7 a pound is added to 20 pounds of coffee worth $2 a pound. The total weight of the mixture will be (x + 20) pounds. The total value of the mixture will be the sum of the values of the two types of coffee.
The value of the 20 pounds of coffee worth $2 a pound is 20 * 2 = $40. The value of the x pounds of coffee worth $7 a pound is 7x. So, the total value of the mixture will be $40 + 7x.
Since we want the mixture to be worth $5 a pound, we can set up the equation:
(40 + 7x) / (20 + x) = 5
To solve this equation, we can cross-multiply:
(40 + 7x) = 5(20 + x)
Expanding the right side of the equation, we get:
40 + 7x = 100 + 5x
Subtracting 5x from both sides, we get:
2x = 60
Dividing both sides by 2, we get:
x = 30
Therefore, 30 pounds of coffee worth $7 a pound should be added to 20 pounds of coffee worth $2 a pound to get a mixture worth $5 a pound.
Which graph below shows a system of equations with infinitely many solutions?
A)coordinate plane with two parallel lines
B)coordinate plane with two intersecting lines
C)coordinate plane with two coinciding lines
D)coordinate plane with two intersecting lines
Answer: C)coordinate plane with two coinciding lines has infinitely many solution.
Step-by-step explanation:
Since, By option A) If there is a coordinate plane with two parallel lines.
Then, It has no solution ( because, we get the solution at the the intersection point of the two lines but parallel lines do not intersect each other).So, it does not have infinite many solution.
By Option B) If there are two intersecting lines then we can get only one solution. So, it does not have infinite many solution.
By Option C) If there are two coinciding lines then we can get infinite number of intersection points therefore the system must have infinite number of solution.
Note: here, Option D) is same as Option B)
Therefore Only option C) is correct.
A 12 foot ladder is placed 4 feet away from a house as shown. What is the value of x, rounded to the nearest degree ?
Answer: The value of x is 70.52°.
Step-by-step explanation:
Since we have given that
Length of ladder = 12 foot
Length of base = 4 feet
We need to find the value of 'x'.
We will use "Cosine of triangle":
[tex]\cos x=\dfrac{4}{12}\\\\x=\cos^{-1}(\dfrac{1}{3})\\\\x=70.52^\circ[/tex]
Hence, the value of x is 70.52°.
f(x)=(x^3+6) inverse
The inverse of this function is f(x) = [tex] \sqrt[3]{x - 6} [/tex]
You can find the value of any inverse function by switching the f(x) and the x value. Then you can solve for the new f(x) value. The end result will be your new inverse function. The step-by-step process is below.
f(x) = x^3 + 6 ----> Switch f(x) and x
x = f(x)^3 + 6 ----> Subtract 6 from both sides
x - 6 = f(x)^3 ----> Take the cube root of both sides
[tex] \sqrt[3]{x - 6} [/tex] = f(x) ----> Switch the order for formatting purposes
f(x) = [tex] \sqrt[3]{x - 6} [/tex]
And that would be your new inverse function.
Find the distance between the points t(13, 1.6)t(13, 1.6) and v(5.4, 3.7)v(5.4, 3.7).
7.88 units is the distance between points T(13, 1.6) and V(5.4, 3.7).
To find the distance between the points T(13, 1.6) and V(5.4, 3.7), we can use the distance formula:
Distance formula:
For two points [tex](x_1, y_1)[/tex]and [tex](x_2, y_2)[/tex], the distance between them is [tex]\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}.[/tex]
Let's plug in the coordinates of points T and V:
Distance = [tex]\sqrt{(5.4 - 13)^2 + (3.7 - 1.6)^2}[/tex]
= [tex]\sqrt{(-7.6)^2 + (2.1)^2}[/tex]
= √(57.76 + 4.41)
= √62.17
= 7.88.
So, the distance between points T(13, 1.6) and V(5.4, 3.7) is approximately 7.88 units.
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Use compatible numbers to solve the problem 326 divided by 44.
A 340 divided by 32 = 10
B 320 divided by 40 = 8
C 330 divided by 30 = 11
D 352 divided by 44 = 8
PLEASE ONLY ANSWER IF YOU KNOW THE ANSWER FOR SURE
Please explain the answer and why the answer is correct
Answer:
B
Step-by-step explanation:
b is the closest answer to th actual aswer ad the most reasonable
What is 8 21/40 I don't understand how to do it
State whether each sequence is arithmetic or geometric, and then find the explicit and recursive formulas for each sequence.
Part1. 10,15,20,25,30.. Step 1.State whether this sequence is arithmetic or geometric and find the explicit formula. show your work. Step 2. find the recursive formula. Show your work.
Part 2. 2,6,18,54,162.. Step 1. State whether this sequence is arithmetic or geometric and find the explicit formula. show your work. Step 2.find the recursive formula. Show your work
Final answer:
The first sequence is arithmetic with an explicit formula of a_n = 10 + (n - 1) × 5 and recursive formula a_n = a_(n-1) + 5, a_1 = 10. The second sequence is geometric with an explicit formula of a_n = 2 × 3^(n-1) and recursive formula a_n = a_(n-1) × 3, a_1 = 2.
Explanation:
Analysis of Sequences
The first sequence: 10, 15, 20, 25, 30... increases by a constant amount of 5 which is an indication of an arithmetic sequence. The explicit formula for an arithmetic sequence is a_n = a_1 + (n - 1)d, where a_1 is the first term and d is the common difference between the terms. In this case, a_1 = 10 and d = 5. Hence, the explicit formula is a_n = 10 + (n - 1) × 5. The recursive formula for an arithmetic sequence is a_n = a_(n-1) + d, which would translate to a_n = a_(n-1) + 5 with a_1 = 10.
The second sequence: 2, 6, 18, 54, 162... multiplies by a common ratio of 3 which classifies it as a geometric sequence. The explicit formula for a geometric sequence is a_n = a_1 × r^(n-1), where a_1 is the first term and r is the common ratio. For this sequence, a_1 = 2 and r = 3, so the explicit formula is a_n = 2 × 3^(n-1). The recursive formula for a geometric sequence is a_n = a_(n-1) × r, which for this sequence is a_n = a_(n-1) × 3 with a_1 = 2.
There are 14 boys and 6 girls in Emily’s class. One student in Emily’s class is chosen each day to hand out calculators to all the students. Also, one student in Emily’s class is chosen each day to collect calculators at the end of class. The same student can be chosen for each job. Each student is equally likely to be chosen. What is the probability a girl is selected to do both jobs on Monday?
A. 9/100
b. 107/190
C. 3/5
d. 3/38
Same girl can be chosen for both jobs, is the probability with replacement. Multiply the individual probabilities.
(6/20) * (6/20) = 9/100
The probability of a girl being selected to do both jobs on Monday will be 3 / 38. Then the correct option is D.
What is probability?Its basic premise is that something will almost certainly happen. The percentage of favorable events to the total number of occurrences.
There are 14 boys and 6 girls in Emily’s class.
One student in Emily’s class is chosen each day to hand out calculators to all the students.
Also, one student in Emily’s class is chosen each day to collect calculators at the end of class.
The same student can be chosen for each job.
Each student is equally likely to be chosen.
Then the total number of the students will be
Total students = 14 + 6
Total students = 20
Then the probability a girl is selected to do both jobs on Monday will be
P = ⁶C₂ / ²⁰C₂
P = 15 / 190
P = 3 / 38
Then the correct option is D.
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In the time a person on a bicycle travels 4 miles a person in a car travels 30 miles assuming a constant speed how far will the car travel while the bicycle travels 40 miles
The car will travel 300 miles while the bicycle travels 40 miles
Explanation:Let's first calculate the ratio of distances traveled by the bicycle and the car in the given scenario:
Ratio of distances = Distance traveled by car / Distance traveled by bicycle
Ratio of distances = 30 miles / 4 miles = 7.5
This ratio represents the speed ratio between the car and the bicycle. Now, we can use this ratio to find the distance the car will travel while the bicycle travels 40 miles:
Distance traveled by car = Ratio of distances * Distance traveled by bicycle
Distance traveled by car = 7.5 * 40 miles = 300 miles
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What is the total finance charge for a $4,250 loan at 13.25% interest compounded monthly for 24 months
The total finance charge for a $4,250 loan at 13.25% interest compounded monthly for 24 months can be calculated using the formula: Total Finance Charge = Total Amount Repaid - Principal Amount.
Explanation:The total finance charge for a $4,250 loan at 13.25% interest compounded monthly for 24 months can be calculated using the formula:
Total Finance Charge = Total Amount Repaid - Principal Amount
First, calculate the total amount repaid:
Convert the annual interest rate to the monthly interest rate by dividing it by 12: 13.25% / 12 = 1.1042%Convert the loan term from months to years: 24 months / 12 = 2 yearsCalculate the total amount repaid using the formula: Total Amount Repaid = Principal Amount + InterestNow, calculate the principal amount:
Principal Amount = Loan Amount = $4,250
Finally, substitute the values into the formula and calculate the total finance charge:
Total Finance Charge = Total Amount Repaid - Principal Amount
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What is the standard form equation of the line shown below? Graph of a line going through negative 3, negative 1 and 3, 2 y + 1 = one half(x + 3) y = one halfx + five halves −x + 2y = 1 x − 2y = −1
Answer:
The correct answer is D, "x − 2y = −1."
Step-by-step explanation:
I just completed the test.
What's the unit rate for 4 shirts for $32:00
How many numbers are evenly divisible by four between 39 and 59?
39/4=9.
59/4=14.
add 14.+9.=23
now divide 23/4=5
40 is the first number evenly divided by 4 and is the 10th multiple of 4 (4*10=40)
56 is the last number evenly divisible by 4 and is the 14th multiple of 4 ( 4*14 =56)
14-10 = 4 +1 = 5
there are 5 numbers evenly divisible by 4
What is the formula to find the midpoint on a coordinate plane?
The local toy store has a bin of toy vehicles for sale. The bin holds b bikes and c cars. If the store sells 1/3 of the vehicles in the bin, which expression represents the number of vehicles remaining in the bin?
The expression that can be used to represents the number of vehicles remaining in the bin is (b + c) - 1/3(b + c)
How to write a mathematical expression?Number of bikes = bNumber of cars = cTotal vehicles = b + c
Number of vehicles sold = 1/3 of total vehicles
= 1/3(b + c)
Number of vehicles remaining = (b + c) - 1/3(b + c)
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The expression that represents the number of vehicles remaining in the bin is 2/3 (b + c).
To determine the number of vehicles remaining in the bin after selling 1/3 of them, we start by calculating the total number of vehicles initially present. This total number is represented by b + c, where b is the number of bikes and c is the number of cars.
If the store sells 1/3 of the vehicles, the number sold can be represented as:
(b + c) / 3
The number of vehicles remaining in the bin would be the original total minus the number sold:
(b + c) - (b + c) / 3
We can simplify this expression by finding a common denominator:
(b + c) - (b + c) / 3 = 3(b + c)/3 - (b + c) / 3 = (3(b + c) - (b + c)) / 3 = (2(b + c)) / 3
Therefore, the expression that represents the number of vehicles remaining in the bin is 2/3 (b + c).
helpppppppppppppppp mathhhhhhhhhhhh
evaluate this piecewise function at x=-4 and x=4
Answer:
When x = –5, y =
3.
When x = –1, y =
-2.
When x = 3, y =
-4
What is the decay rate?
Using the function f(x) = 2x + 7 find the following: (show your work)
1. f(x) = 13
2. f(x)=21
To use function notation we either replace the x in the equation or the f(x) in the equation.
To find f(2) we replace the ________ in the equation with _________ and then solve for f(x).
To find f(x)=2 we replace the _________ in the equation with __________ and then solve for x.
The sum of 5 consecutive integers is 310 What is the third number in this sequence?
310/5 = 62
60 +61 +62 +63 +64 = 310
3rd number is 62
Which equation can be used to find the answer? an aquarium worker removed 78 fish from a tank. there were still 186 fish left in the tank. how many fish were in the tank before any were removed?
a. f ÷ 2 =78 f = 156 156 fish
b. f ÷ 2 =186 f = 372 372 fish
c. f – 78 = 186 f = 264 264 fish
d. f + 78 = 186 f = 108 108 fish?
Answer:
f/2=186 fish
186 x 2 = 372
372 fish left in the tank
Step-by-step explanation:
irrational numbers can never be precisely represented in decimal form . why is this?
In which section of the credit report is a list of all monthly payments?
Suppose a railroad rail is 3 kilometers and it expands on a hot day by 12 centimeters in length. Approximately how many meters would the center of the rail rise above the ground
The center of the rail would rise approximately 0.06 meters above the ground.
The expansion of the railroad rail is given as 12 centimeters. To convert centimeters to meters, you divide by 100 since there are 100 centimeters in a meter.
So, the expansion in meters is 12/100 meters.
Now, the center of the rail would rise approximately half of this expansion because the rail expands equally on both sides. Therefore, the rise in the center of the rail above the ground would be
=1/2 × 12/ 100.
Let's calculate that:
Rise in the center= 1/2 × 12/100
Rise in the center=6/100
Now, to express this fraction in decimal form, you divide the numerator by the denominator:
Rise in the center= 0.06
So, the center of the rail would rise approximately 0.06 meters above the ground.
Describe the shape of the data for German male adults, and explain how you came to that conclusion. Are there any outliers in the data?
Answer:
the answer is
Step-by-step explanation:
skewed left and 220
Sydney has 972$ to spend on tickets. if each ticket costs 27$ how many tickets can she purchase
divide total cost by ticket price
972/27 = 36 tickets
The functions f(x) and g(x) are shown below: f(x) = 5x g(x) = 5x Which statement best describes the graph of f(x) and g(x)?
The graph of f(x) will eventually exceed the graph of g(x).
The graph of g(x) will eventually exceed the graph of f(x).
The graphs will both have their y-intercept equal to 1.
The graphs will both have their y-intercept equal to 5.
The given functions f(x) and g(x) are not exceeding each other at any point as they are same function.
Both the graphs of these functions have same y-intercept of 0.
What is a function?A function is the relation between two sets. A function relates the domain to the range.
Here, f(x) = 5x and g(x) = 5x.
Therefore, both functions are equal and their graph will be same.
Hence, none of them exceeding the other one.
If we compare both functions with standard form: y = mx + c, it is clear that both functions have same y-intercept of 0.
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