Answer:
32 revolutions per minute(rpm)
Step-by-step explanation:
v inversely proportional to t
so if v increases t will decrease and vice versa
inverse equation is xy=k
xy=k
48×20= 960 (revolutions)
then you'll take k(960) and divide it by number of teeth
so..
960/30 = 32 revolutions per minute
A city has 1,242 law enforcement officers in the police department. If the officers are divided equally into 18 groups, how many officers will be in each group
Answer C: 69
Step-by-step explanation:
1242 divided by 18 = 69
The price of an item yesterday was $130. Today, the price rose to $299. Find the percentage increase.
Answer:
130%
Step-by-step explanation:
Use the formula for percent change: difference = % * original price
To find the difference, you have to do 299 - 130, which is 169.
The original price is $130 because this is the price before it rose to $299.
Now, you have the equation 169 = % * 130.
We don’t know the percentage right? No, so we have to find the percentage by dividing 169 by 130, which gives you 1.3. Lastly turn 1.3 into a percentage by multiplying 1.3 by 100, and 1.3 as a percentage is 130%. So therefore, the percent increase is 130%.
130%
Step-by-step explanation:
Yesterday = $130.
Today = $299 .
((final price - initial price)/(initial price)) × 100%
= (($299 - $130)/$130) × 100%
= ($169/$130) × 100%
= $1,3 × 100%
= 1,3 × 100%
= 130%
Somebody help
The graph shows the calling charges of two cell phone companies. At how many minutes do the two companies charge
20
18
cell phone
company A
16
14
+
+
10
Charges
cellphone
company B
10 20 30 40 50 60 70 80
Time (minutes)
OA 0
OB. 15
OC 20
OD 40
Put it to more points longer the question is so n00000
can someone help pls
Answer: hehehe
Step-by-step explanation:
Your mom
( BRAINLIEST QUEATION)
A bank offers 2% simple interest per year. A woman opens an account with deposit of 900 pounds. She closes the account 2 years later. How much will she withdraw.
simple interest formulae = PRT/100
where
p stands for percentage (2%)
r stands for rate ( 900)
t stands for time (2 years )
2×900×2/100
=3600/100
=36
Deposit interest
Level : SHS Keyword : deposit interest, simple interestDeposit Interest in 2 years
= D × i × T/365 days
= 900 pounds × 2% × (365 × 2 years)/365 days
= 900 pounds × 0.02 × 730 days/465 days
= 900 pounds × 0.02 × 2
= 36 pounds
Her Deposit in 2 years
= 900 pounds + 36 pounds
= 936 pounds
So, her deposit if she will withdraw is 936 pounds
#LearnWithEXO
someone help please!!
Answer:
Step-by-step explanation:
Which express is equivalent to (1/the square root of y)-1/5
Answer:
1/10 I think not really sure lol
Step-by-step explanation:
1/10 now brainliest and enjoy.
Answer: 1/10squarerootY i think
Combining like terms plz ?
Answer:
9g - 6
Step-by-step explanation:
7g - 9 + 2g + 3
9g - 9 + 3
9g - 6
Answer:
9g-6
Step-by-step explanation:
7g-9+2g+3= (7g+2g)+(-9+3)
Solve:
9g-6
Hope this helps!
Convert -18° to radians
Answer:
−
π
10
radians
Step-by-step explanation:
To convert degrees to radians you multiply by π180° π 180 ° since a full circle is 360° or 2π radians.
hello everyone ,
i am having some problems solving this question in maths
Arrange 13.25 kg, 14560 g, 13.6 kg, 12000 g in descending order ,
Write the following decimals as fractions. Reduce the fractions to lowest
form.
a) 3.6 b) 12.5
i hope u also consider explaining
thank you all .
Answer:
Descending order:
14560g
13.6kg
13.25kg
12000g
a.) [tex]\frac{18}{5}[/tex]
b.) [tex]\frac{25}{2}[/tex]
Step-by-step explanation:
To find the difference between kg or g, either divide kg by 100 to convert to g, or multiply g by 1000 to convert to kg.
If we were to put everything into g:
14560g
13600g
13250g
12000g
See how they are still in the correct order?
If we were to put everything into kg:
14.56kg
13.6kg
13.25kg
12kg
Still in descending order!
___________________
Now to find out how to put the decimals into fractions:
Multiply by 10 (since there is only 1 digit behind the decimal, for every digit behind the decimal you multiply by another factor of 10, so if you have 2.55 you multiply by 100)
Following this we get:
36
125
Now divide by the same factor (10), we can't change the value of the number, just the way they look!
[tex]\frac{36}{100}[/tex]
[tex]\frac{125}{10}[/tex]
All that's left is it reduce!
[tex]\frac{18}{5}[/tex]
[tex]\frac{25}{2}[/tex]
And as you can see, we are back to the number I had put in the solution!
How do you turn into a fraction a number with negative exponents ?
Answer:
A negative exponent involves taking the inverse of the number, then multiplying it by itself once it's in the denominator of the fraction.
whats the answer 100x100-234+098
Answer: Simplify the expression.
9864
PLEASE HELP!!!
for questions 8-10 write an equation of the line graphed.
Answer:
8.) y=4/3x+2
9.)y=-0.5x+5
10.)x=1
Area work I’ve completely forgotten how to do it
Answer:
18 x 4 = 72
72/2 = 36
36 is the answer
Step-by-step explanation:
solve for y
6x - 3y = 15
hint: subtract 6x, divide by -3, simplify
Answer:
2.5
Step-by-step explanation:
6x-3y=15 because you have to times through 6x and 3y
Jackson deposits $4,200 in a savings account that pays 3.5% annual interest.What is the total value of the account after 10 years
Answer:
5924, 51
Step-by-step explanation:
X = 4200(1.035)^10
And put it in a calculator
The total value of the account after 10 years is $5,924.52.
Given that,
The deposited amount is $4,200.The rate of interest is 3.5%.And, the time period is 10 years.Based on the above information, the calculation is as follows:
[tex]= \$4,200 \times (1 + 3.5\%)^{10}[/tex]
= $5,924.52
Therefore we can conclude that the total value of the account after 10 years is $5,924.52.
Learn more: brainly.com/question/13324776
At a local department store, slacks have been reduced to $27. This price is at 69.2% of the original price for slacks. Given this, what was the original price of the slacks? Round your answer to the nearest whole number if necessary.
Answer:
39$
Step-by-step explanation:
hope it helps <333
Given the line below.
Write the equation of the line, in point-slope form. Identify (x1, y1) as the point (-2, -1). Use the box provided to submit all of your calculations and final answers.
Answer:
y + 1 = [tex]\frac{1}{2}[/tex] (x + 2)
Step-by-step explanation:
The equation of a line in point- slope form is
y - y₁ = m(x - x₁)
where m is the slope and (x₁, y₁ ) a point on the line
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 2, - 1 ) and (x₂, y₂ ) = (2, 1 )
m = [tex]\frac{1-(-1)}{2-(-2)}[/tex] = [tex]\frac{1+1}{2+2}[/tex] = [tex]\frac{2}{4}[/tex] = [tex]\frac{1}{2}[/tex] and (x₁, y₁ ) = (- 2, - 1 ) , then
y - (- 1) = [tex]\frac{1}{2}[/tex](x - (- 2) ) , that is
y + 1 = [tex]\frac{1}{2}[/tex] (x + 2)
la palabra tremulas es una palabra grave o esbrujula?
Answer:
Step-by-step explanation:
La palabra trémula es esdrújula porque la sílaba tónica es la antepenúltima sílaba. Las palabras esdrújulas siempre llevan tilde (acento ortográfico).
Find the distance between (6,-5) and (8,-8)
PLZ HELP!
Add.
−16 + (−29) + 49 =
4
62
94
Answer:
4 is the answer
Step-by-step explanation:
have a nice day :)
Answer:
4
Step-by-step expla
Graph the solution to 40x? +90x+ + 65x + 15 >0 on a number line.
Answer:
the answer is B
Step-by-step explanation:
the answer is B
The functionf(x)is shown in the graph.
What is the equation forf(x)?
Enter your answer in the box.
Answer:7/5x -3
Step-by-step explanation:
someone plz help me.............
Answer:
anser is 56
Step-by-step explanation:
What is the value of 4C9 ?
Liv earns $9.50 for every two bracelets she sells. The equation y = 4.75x can be used to represent this situation.
What is the constant of proportionality? Express your answer in decimal form.
Answer:
2.58
Step-by-step explanation:
It is given that
A = {1, 2, 3, 4, 7} and B = {2, 4, 8, 10).
(i) List all the elements in A∩B in set notation.
(ii) Draw a Venn diagram to represent the sets A and B.
Answer:
(i) A∩B = {2,4}
(ii) I don't know how to attach pictures in brainly so i can't send the veen diagram
help please and thank you
Answer:
12
Step-by-step explanation:
25.2 / 2.1
The divisor should be a whole number. Multiply the dividend and the divisor by 10.
= 252 / 21
= 12
HELP PLEASE I'M CONFUSED I DON'T KNOW THE ANSWER!!!
Answer:
the answer is 3 1/9
Step-by-step explanation:
if you see how many times you can fit 9 into 28 you will see it can happen three times but you still have 1 leftover hence the 1/9
Sarah and Emily ran a 324m race. If Sarah ran it in 61.3 seconds and Emily ran it in 60.4 seconds, how much faster was Emily than Sarah? Round to the nearest hundredth and give your answer in meters per second.
=======================================================
Work Shown:
Distance = rate*time
rate = distance/time
----------------
For Sarah, she runs 324 m in 61.3 seconds. Her speed is:
rate = distance/time
rate = (324 m)/(61.3 sec)
rate = (324/61.3) meters per second
rate = 5.28548 meters per second approximately
----------------
Repeat the same set of steps for Emily
rate = distance/time
rate = (324 m)/(60.4 sec)
rate = (324/60.4) meters per second
rate = 5.36423 meters per second approximately
----------------
The last thing to do is subtract the results we got
5.36423 - 5.28548 = 0.07875
This then rounds to 0.08 meters per second when rounding to two decimal places.