Sydney can read 5/4 or 1.25 pages in one minute
Data;
number of pages = 50time taken = 40 minuterate = ?What is RateThis can be defined as the measure of one unit against another unit.
If it take Sydney 40 minutes to read 50 pages, let's calculate how many pages she will read in one minute to determine her rate.
[tex]40 pages = 50 minutes\\x pages = 1 minute[/tex]
Let's cross multiply both sides and solve for x
[tex]50 pages = 40 minute\\x pages = 1 minute\\x = \frac{50*1}{40}\\x = 1.25 page[/tex]
From the calculations above, Sydney can read 5/4 or 1.25 pages in one minute.
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Convert 30 feet per second to miles per minute.
5280 ft = 1 mi
Round to the nearest hundredth.
We know that:
1 mile = 5280 ft
1 minute = 60 sec
Therefore to convert this we simply use the conversion factors:
(30 ft / s) * (60 s / 1 min) * (1 mi / 5280 ft) = 0.34 mi / min
So we got 0.34 miles per minute.
If f(x)=x^2-3x,find f(-18). Show work
I need help please I’m lost
Can someone please help me with this problem?
Let f(x)=(x-2)^3+8.
Show that this function is one-to-one algebraically.
I've been stuck on this problem for quite some time now. I'm not asking for answers just a little explanation on what I need to do to solve it.
For about 10 years after the french revolution, the french government attempted to base measures of time on multiples of ten: one week consisted of 10 days, one day consisted of 10 hours, one hour consisted of 100 minutes, and one minute consisted of 100 seconds. what are the ratios of (a) the french decimal week to the standard week and (b) the french decimal second to the standard second? assume that the definition of a "day" remains the same.
Explanation of the ratios of French decimal time to standard time after the French Revolution.
Explanation:Ratio of French Decimal Week to Standard Week:
1 French decimal week = 10 days, whereas 1 standard week = 7 days. So, the ratio is 10/7.
Ratio of French Decimal Second to Standard Second:
1 French decimal second = 0.01 standard second since 1 hour = 100 French decimal minutes = 100 x 0.01 = 1 standard hour.
(a) The ratio of the French decimal week to the standard week is [tex]\( \frac{10}{7} \)[/tex].
(b) The ratio of the French decimal second to the standard second is [tex]\( \frac{5}{3} \)[/tex].
To find the ratios of the French decimal week to the standard week and the French decimal second to the standard second, we'll compare the durations of these units in the French decimal system to those in the standard system.
(a) Ratio of the French decimal week to the standard week:
In the French decimal system:
- One French decimal week consists of 10 days.
In the standard system:
- One standard week consists of 7 days.
So, the ratio of the French decimal week to the standard week is:
[tex]\[ \text{Ratio} = \frac{\text{French decimal week}}{\text{Standard week}} = \frac{10 \text{ days}}{7 \text{ days}} \][/tex]
(b) Ratio of the French decimal second to the standard second:
In the French decimal system:
- One minute consists of 100 seconds.
In the standard system:
- One minute consists of 60 seconds.
So, the ratio of the French decimal second to the standard second is:
[tex]\[ \text{Ratio} = \frac{\text{French decimal second}}{\text{Standard second}} = \frac{100 \text{ seconds}}{60 \text{ seconds}} \][/tex]
Now, let's simplify these ratios:
(a) Ratio of the French decimal week to the standard week:
[tex]\[ \frac{10}{7} \][/tex]
(b) Ratio of the French decimal second to the standard second:
[tex]\[ \frac{100}{60} = \frac{5}{3} \][/tex]
So, the ratios are:
(a) for the French decimal week to the standard week.
(b) [tex]\( \frac{5}{3} \)[/tex] for the French decimal second to the standard second.
Which expression is equal to 2−√ 32 ?
8i√2
−8√2
8√2i
−8i√2
Answer:
A. [tex]8i\sqrt{2}[/tex]
Step-by-step explanation:
We have been given a radical expression [tex]2\sqrt{-32}[/tex]. We are asked to find equivalent expression to our given expression.
Using radical rule [tex]\sqrt{-a}=\sqrt{-1}\cdot \sqrt{a}[/tex], we can write [tex]\sqrt{-32}[/tex] as product of [tex]\sqrt{-1}\cdot\sqrt{32}[/tex].
[tex]2\sqrt{-32}=2\cdot \sqrt{-1}\cdot\sqrt{32}[/tex]
Substitute [tex]\sqrt{-1}=i[/tex]:
[tex]2\sqrt{-32}=2i\cdot\sqrt{32}[/tex]
[tex]2\sqrt{-32}=2i\cdot\sqrt{2\cdot 16}[/tex]
[tex]2\sqrt{-32}=2i\cdot\sqrt{2\cdot 4^2}[/tex]
[tex]2\sqrt{-32}=2*4i\cdot\sqrt{2}[/tex]
[tex]2\sqrt{-32}=8i\sqrt{2}[/tex]
Therefore, the equivalent expression would be [tex]8i\sqrt{2}[/tex].
The expression which is equal to 2√-32 is; 8i√2
According to the question, we have been given the radical expression; 2√-32
First, the expression can be evaluated as follows;
=2√-32= 2√-1 × 32We must recall that, In complex numbers, √-1 = i.
= 2i√32= 2i√16 ×2= 8i√2Therefore, the expression which is equal to 2√- 32 is:. 8i√2
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What is the sum of the polynomials
Answer:
B its 100% this one i promise
Step-by-step explanation:
The sum of the polynomials (17m - 12n - 1) and (4 - 13m - 12n) will be
⇒ 4m - 24n + 3
Option B is true.
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The polynomials are,
⇒ (17m - 12n - 1) and (4 - 13m - 12n)
Now, Sum of the polynomial is find as;
The polynomials are,
⇒ (17m - 12n - 1) and (4 - 13m - 12n)
It can be written as;
The polynomials are,
⇒ 17m - 12n - 1
- 13m - 12n + 4
---------------------------
4m - 24n + 3
---------------------------
Thus, (17m - 12n - 1) + (4 - 13m - 12n) = 4m - 24n + 3
Therefore, The sum of the polynomials (17m - 12n - 1) and (4 - 13m - 12n) will be
⇒ 4m - 24n + 3
Option B is true.
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Eli took the fleet of 8 vans for oil changes. All of the vans needed windshield wipers which cost $24 per van. The total bill was $432. Write an equation to find out what oil change cost . Solve the equation
Jennifer is saving money to buy a bike. The bike costs $245. She has $125 saved, and each week she adds $15 to her savings. How long will it take her to save enough money to buy the bike?
ax+2xy=14 solving for y
Answer:
[tex]y=\dfrac{14-Ax}{2x}[/tex]
Step-by-step explanation:
The given expression is :
[tex]Ax+2xy=14[/tex].............(1)
We need to find the value of y. Subtracting "Ax" on both sides of equation (1) as :
[tex]Ax-Ax+2xy=14-ax[/tex]
[tex]2xy=14-Ax[/tex]
Dividing both sides of above equation by "2x" as :
[tex]\dfrac{2xy}{2x}=\dfrac{14-Ax}{2x}[/tex]
[tex]y=\dfrac{14-Ax}{2x}[/tex]
So, the value of y is, [tex]y=\dfrac{14-Ax}{2x}[/tex]. Hence, this is the required solution.
When the sun is at 31 above the horizon, a tree casts a 42 ft. shadow. how tall is the tree?
There are 2.54 centimeters in an inch how many inches are in 51.78 centimeters round to the nearest tenths
Write an equation for the cubic polynomial function whose graph has zeroes at 2, 3, and 5.
Can any of the roots have multiplicity?
How can you find a function that has these roots?
Answer:
The roots cannot have multiplicity because the function is specified as cubic and 3 roots are given.
To find the function, write f(x) = (x – 2)(x – 3)(x – 5), and simplify the right side.
Find the simple interest on a $2,219 principal, deposited for six years at a rate of 5.11%
round to the nearest tenth.
Identify the property that is demonstrated below:
ab = ba
a. commutative property of addition
b.commutative property of multiplication
c. identity property of multiplication
d.associative property of multiplication
A cheetah ran 300 feet in 2.92 seconds. What was the cheetah’s average speed in miles per hour? Show your work.
60 seconds per minute, 60 minutes per hour
60*60 = 3600 seconds per hour
5280 feet per mile
300/5280 = 0.0568 of a mile
2.92/3600 = 0.000811 of an hour
0.0568 / 0.000811 = 70.028 miles per hour
round to 70 miles per hour
A scientist inoculates mice, one at a time, with a disease germ until he finds 2 that have contracted the disease. if the probability of contracting the disease is 1/6, what is the probability that 8 mice are required?
On a farm, there are 20 fewer cows than twice the number of pigs. If there are 50 cows, how many pigs are there? Write a two step equation to model the scenario and answer it.
please answer both questions thank you.
Best buy shoes had a back to school special. The total bill for four pairs of shoes came to $69.24 ( before tax ) What was the average price for each pair of shoes?
QUESTION 2 If you only purchased 1 pair of shoes at Best Buy Shoes instead of the four described in problem 20, how much would you have paid, based on the average price?
Answer: a) $17.31, b) $17.31.
Step-by-step explanation:
Since we have given that
Total bill for four pairs of shoes = $69.24
Number of pairs of shoes = 4
We need to find the average price for each pair of shoes .
So, Average price would be
[tex]\dfrac{\text{Total amount}}{\text{Number of pairs of shoes}}\\\\=\dfrac{69.24}{4}\\\\=\$17.31[/tex]
If he purchased only 1 pair of shoes, the amount he has to pay based on average price would be $17.31.
Hence, a) $17.31, b) $17.31.
Final answer:
The average price for each pair of shoes from the total bill of $69.24 is $17.31. If only one pair of shoes was purchased, it would also cost $17.31.
Explanation:
To find the average price for each pair of shoes in the first question, you divide the total bill by the number of pairs of shoes. In this case, the total bill is $69.24 for four pairs of shoes.
Step-by-step calculation:
Divide the total cost ($69.24) by the number of pairs (4).
The calculation will be $69.24 / 4 = $17.31.
The average price for each pair of shoes is $17.31.
For the second question, if you were to purchase only one pair of shoes, the cost would be equal to this average price, which is $17.31.
At the movie theatre, child admission is $5.50 and adult admission is $9.40 . On Monday, four times as many adult tickets as child tickets were sold, for a total sales of $1379.20 . How many child tickets were sold that day?
35 points in a game if the team scored 21 points the first half the fraction of the total scored in the second half was
35 -21 = 14
14/35 reduces to 2/5
Sari has 3 times as many pencils as sam.together they have 28 pencils how many more pencils does sari have
Suppose that there are three astronauts outside a spaceship and they decide to play catch. all the astronauts weigh the same on earth and are equally strong. the first astronaut throws the second one toward the third one and the game begins. describe the motion of the astronauts as the game proceeds. how long will the game last?
Andreas invested $1000 in savings account. After 4 years, the account had earned a total of $112 simple interest without any additional deposits. What was his interest rate.
Please help me! Im really confused on how to solve problems like this
Write the equation of a line that has a slope 1/3 and y-intercept 4.
In slope-intercept form, y = (1/3)x + 4 can be used to represent the equation of a line with a slope of 1/3 and a y-intercept of 4.
Explanation:In mathematics particularly in algebra, the equation of a line is usually formulated in the slope-intercept form, which is y = mx + b. Where m is the slope of the line and b is the y-intercept. For a line with a slope of 1/3 and y-intercept of 4, you would substitute 1/3 for m and 4 for b. Therefore, the equation of the line would be y = (1/3)x + 4
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Which of the following phrases would represent this expression?
the quotient of x and 3
the quotient of 3 and x
the product of 3 and x
the difference of x and 3
Answer:
The quotient of x and 3 is the answer i hope it works
Simplify square root of 5 plus the square root of 125 plus 25. I don't understand. Can someone please help me?