128 is the product of Julie's savings and 8
Use the variable j to represent Julie's savings.
128=8j; divide both sides by 8
j=16
In your lease agreement you are allowed 25000 km per year for free. After that you are charged $0.08 per km. After yoir 5 year term, you drove a total of 140000 km. How much do you owe?
After 5 year term, the distance covered is 140000 km, the charge paid is, $1200
What is multiplication?The fundamental concept of repeatedly adding the same number is represented by the process of multiplication. The results of multiplying two or more numbers are known as the product of those numbers, and the components that are multiplied are referred to as the factors.
Given that,
In lease agreement, the distance allowed 25000 km per year for free
After that the charge will be $0.08 per km
After 5 year term, you drove a total of 140000 km
The owed amount = ?
So, in 5 year term the distance which is free according to agreement,
⇒ 5 × 25000
⇒ 125000
Now, the distance for which charge has given
⇒ 140000 - 125000
⇒ 15000
Charged amount = $0.08 per km
The owed amount = 0.08 × 15000
= $1200
Hence, the amount owed is $1200
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A color printer prints 31 pages in 12 minutes. how many minutes does it take per page?
A bridge is 28 meters long. Find the length of a scale model if the scale is 1 cm = 5.5 meters. Round to the nearest tenth.
a.
5.1 cm
c.
4.7 cm
b.
5.5 cm
d.
6.4 cm
Based on the length of the bridge and the scale used, the length of the scale model is a. 5.1 cm.
What is the length of the scale model?This can be found as:
= Length of Bridge / Number of meters per centimeters
Solving gives:
= 28 / 5.5
= 5.09
= 5.1 cm
In conclusion, option A is correct.
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Solve for x.5(x – 10) = 30 – 15x
Answer:
x=4
Step-by-step explanation:
Hey 5ever can u solve dis please.
Factor:
(3x+5xy)^2
At the beginning of every year molly deposits 200 in a savings account thst offers 20% interest annually. The total amount molly woukd have in her account after 3 years is? I got 345.60 but wrong?
The area of a parallelogram is modeled by the formula, A = lw. Solve the equation for w.
A. w=Al
B. w=I/A
C. w=A/I
D. w=2AI
Answer:
.C
Step-by-step explanation:
On a multiple choice test with 13 questions, each question has four possible answers, one of which is correct. for students who guess at all answers, find the standard deviation for the number of correct answers.
which decimal is closest in value to the fraction below 1/9 ?
a) 0.111
b) .33333
c) 0.7
Write an algebraic expression for 4 more than p
4 workers get paid 160,000 for working for five days, how much will 5 workers get paid for working for a day
Given f(x) = x2 + x − 2 and g(x) = 2x − 4, identify (f + g)(x).
what is the coefficient of x^2y^3 in the expansion of (2x+y)^5
Answer:
The coefficient of x²y³ is 40.
Step-by-step explanation:
The binomial expansion is defined as
[tex](a+b)^n=^nC_0a^n+^nC_1a^{n-1}b+...+^nC_ra^rb^{n-r}+....+^nC_nb^n[/tex]
The expression is
[tex](2x+y)^5[/tex]
Expand the binomial expansion.
[tex](2x+y)^5=^5C_0(2x)^5+^5C_1(2x)^{4}(y)+^5C_2(2x)^{3}(y)^2+^5C_3(2x)^{2}(y)^3+^5C_4(2x)^{1}(y)^4+^5C_5(y)^5[/tex]
Combination formula:
[tex]^nC_r=\frac{n!}{r!(n-r)!}[/tex]
[tex](2x+y)^5=32 x^5 + 80 x^4 y + 80 x^3 y^2 + 40 x^2 y^3 + 10 x y^4 + y^5[/tex]
Therefore the coefficient of x²y³ is 40.
Answer:40
Step-by-step explanation:
algebra 2 test
Need help. Have photo
How many feet of chain fence are necessary to enclose a dog pen that is square and has an area of 64 square feet?
Doing this, we get that 32 feet are needed.
Square:
The area of a square of side s is:
[tex]A = s^2[/tex]
And the perimeter is:
[tex]P = 4s[/tex]
Area of 64 square feet
This means that:
[tex]s^2 = 64[/tex]
[tex]s = \sqrt{64}[/tex]
[tex]s = 8[/tex]
The side of the square is of 8 feet.
Perimeter:
Side of 8 feet, so:
[tex]P = 4s = 4(8) = 32[/tex]
32 feet of chain fence are needed.
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At 1:00 p.m. a car leaves st. louis for chicago, traveling at a constant speed of 65 miles per hour. at 2:00 p.m. a truck leaves chicago for st. louis, traveling at a constant speed of 55 miles per hour. if it is a 305-mile drive between st. louis and chicago, at what time will the car and truck pass each other?
To find out when the car and truck will pass each other, set up an equation where the sum of the distances covered by each at their respective speeds equals 305 miles. After solving, it's determined they will pass each other at 4:00 p.m.
To determine at what time the car and truck will pass each other, we need to calculate how far each vehicle will have traveled before they meet. The car leaves St. Louis at 1:00 p.m., while the truck leaves Chicago at 2:00 p.m., one hour later. We assume they meet after the car has been traveling for t hours and the truck for t - 1 hours.
The distance the car travels is the product of its speed and time, which can be calculated as 65 miles per hour times t hours. The truck's distance is 55 miles per hour times (t - 1) hours. Since the total distance between St. Louis and Chicago is 305 miles, we combine these distances to form the equation:
65t + 55(t - 1) = 305
Solving this equation:
65t + 55t - 55 = 305120t - 55 = 305120t = 305 + 55120t = 360t = 360 / 120t = 3 hoursSince the car has been traveling for 3 hours after 1:00 p.m., the two vehicles will pass each other at 4:00 p.m.
Let f(x)=√7x and g(x)=x+8, whats the smallest number that is the domain of f^o g?
Final answer:
The smallest number in the domain of the composite function f^o g, is -8.
Explanation:
To find the smallest number that is in the domain of the composite function fo g, we need to consider the domains of the individual functions f(x) and g(x). First, since f(x) = √7x, f is only defined for x ≥ 0, as the square root function requires non-negative input. Secondly, g(x) = x+8 is defined for all real numbers, as it's a linear function.
However, the composite function f(g(x)) will also require that the output of g(x) be non-negative, because this output becomes the input for f(x). Thus, we need to find the smallest x such that g(x) is non-negative, which occurs when x+8 ≥ 0. Solving for x gives us x ≥ -8.
Hence, the smallest x in the domain of fo g is -8.
Circle A and circle B are congruent. CD is a chord of both circles. If AB = 8 ft and CD = 6 ft, how long is a radius?
Let us say that the intersection point of lines AB and CD is called point E. The lines AB and CD are perpendicular to each other which also means that the triangle CEB is a right triangle.
Where the line CB is the radius of the circle while the side lengths are half of the whole line segment:
EB = 0.5 AB = 0.5 (8 ft) = 4 ft
CE = 0.5 CD = 0.5 (6 ft) = 3 ft
Now using the hypotenuse formula since the triangle is right triangle, we can find for the radius or line CB:
CB^2 = EB^2 + CE^2
CB^2 = (4 ft)^2 + (3 ft)^2
CB^2 = 16 ft^2 + 9 ft^2
CB^2 = 25 ft^2
CB = 5 ft = radius
Answer:
5ft
Step-by-step explanation:
Find the inverse
f(x) = [tex] \frac{x}{x + 2} [/tex]
When is buying a house and renting it out a profitable venture?
Answer:
When what you enter for rent is greater than the mortgage, taxes, maintenance and rent.
Step-by-step explanation:
Buying the house is an investment if we do it to generate income. Otherwise, it is simply the place where we live, spend time and enjoy with our family
The purchase for investment purposes is when we buy apartments for rent or for the purpose of renovating and selling them quickly for a higher price.
Solve for x..
a) x= 8
B) x= 22.5
C) x= 32.4
D) x= 40.5
What is 65 percent converted into a fraction in simplest form\?
In the diagram, is the perpendicular bisector of and is also the angle bisector of . If m = x, which quantity is equal to sin ?
The quantity equal to sin ∠DPB is sin(x/2), corresponding to option B.
In the given diagram, overline PN serves as the perpendicular bisector of overline AB, implying that point N lies on the midpoint of segment AB.
Additionally, overline PN functions as the angle bisector of ∠CPD. Since ∠CPD measures x degrees, by the angle bisector theorem, ∠DPN and ∠DPB each measure x/2 degrees.
Now, to determine sin ∠DPB, we consider the right triangle DPN. By definition, sin θ = opposite/hypotenuse.
In this triangle, the opposite side to ∠DPB is overline DN, and the hypotenuse is overline DP.
Therefore, sin ∠DPB = DN/DP.
Since ∠DPN = x/2, applying trigonometric ratios in right triangle DPN, sin(x/2) = DN/DP.
Hence, the quantity equal to sin ∠DPB is sin(x/2), corresponding to option B.
The probable question may be:
In the diagram, overline PN is the perpendicular bisector of overline AB and is also the angle bisector of ∠ CPD If m∠ CPD=x , which quantity is equal to sin ∠ DPB ?
A. sin π /2
B. sin x/2
C. cos x/2
D. cos π /3
We know that y=mx+b is the formula we use for lines. Is the value of "m" considered to be a term, a coefficient or a factor?
Question 3 options:
Term
Coefficient
Factor
Identify the slope of the line shown in the graph below:
The sum of two numbers is 64 . the smaller number is 14 less than the larger number. what are the numbers?
The value of a larger number is 39 and the smaller number is 25.
Given that,
The sum of the two numbers is 64.
And, the smaller number is 14 less than the larger number.
Let us assume that,
The larger number is = x
Then, the value of smaller numbers = x - 14
Since the sum of the two numbers is 64.
Hence we get;
x + (x - 14) = 64
2x - 14 = 64
2x = 64 + 14
2x = 78
x = 78/2
x = 39
Thus, The larger number is = 39
Then, the smaller number = 39 - 14
= 25
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Create a set of numbers where:
the mode is equal to 10
the median is equal to 12
the average is 12
Marie is taking a test that contains a section of 10 true-false questions. How many of the possible groups of answers to these questions have at least 5 correct answers of true? Hint: Assign the variable x in the binomial expansion to be the number of true answers and y to be the number of false answers.
To solve this problem, we use the combination equation to find for the possible groups of answer to the questions. Since we are looking for at least 5 correct answers out of 10 questions, therefore we find for 10 ≥ r ≥ 5. We use the formula for combination:
nCr = n! / r! (n – r)!
Where,
n = total number of questions = 10
r = questions with correct answers
For 10 ≥ r ≥ 5:
10C5 = 10! / 5! (10 – 5)! = 252
10C6 = 10! / 6! (10 – 6)! = 210
10C7 = 10! / 7! (10 – 7)! = 120
10C8 = 10! / 8! (10 – 8)! = 45
10C9 = 10! / 9! (10 – 9)! = 10
10C10 = 10! / 10! (10 – 10)! = 1
Summing up all combinations will give the total possibilities:
Total possibilities = 252 + 210 + 120 + 45 + 10 + 1 = 638
Answer: 638
Find all solutions to the equation. (sin x)(cos x) = 0
To solve the equation (sin x)(cos x) = 0, we find that sin x equals zero when x is an integral multiple of π , while cos x equals zero at odd multiples of π/2 . Therefore, our solutions are x = nπ and x = (2n + 1)π/2 for any integer n.
To find all solutions to the equation (sin x)(cos x) = 0, we need to identify the values of x at which either sin x = 0 or cos x = 0, because if either factor on the left-hand side is zero, the product will be zero.
For sin x = 0, the solutions are where x is an integral multiple of π . This can be written as x = nπ, where n is any integer (..., -3, -2, -1, 0, 1, 2, 3, ...).
For cos x = 0, the solutions occur at odd multiples of π/2. Therefore, the solutions can be represented as x = (2n + 1)π/2, where n is any integer.
Combining both sets of solutions, we have x = nπ and x = (2n + 1)π/2, for n being any integer.