Answer:
change the order, so the terms line up
20g+15m=300
g+m=17
multiply the second equation by 20, so the 20g and -20g can cancel out
20g+15m=300
-20g-20m=-340
solve the equation, then divide -5 to both sides to isolate the m
-5m=-40
m=8
substitute the value of m into one equation to find the other value
g+8=17
g=9
write them in ordered paired form
(9, 8)
Step-by-step explanation:
hope this helps :)
what is the volume of a prism if the length is 11ft the width is 8ft and the height is 9ft
Answer:
792ft
Step-by-step explanation:
V=LxWxH, so all you do is do 11 times 8 times 9 to get the answer to that question
Find the volume of the pyramid. 2.4 m 1.4 m 1.8 m
Answer:
It should be 2.016 m cubed
Step-by-step explanation:
the formula is V= 1/3 ( l × w × h ) if you want to check
help! what is
737 is it
natural number
real number
rational number
irrational number
integer
Erica drove 200 miles and Steve drove 212.0 kilometers. Who drove
farther? (1km = 0.62 mile)
Answer:
212×0.62=131.44 so Erica drove farther.
Answer:
The answer is Erica drove farther.
Step-by-step explanation:
212 kilometers is 131 miles and Erica drove 200 miles so Erica drove further.
Which inequality represents the situation written below?
The temperature outside today should be at least 40 degrees.
Answer:
at least 40 means minimum 40.
option G
Determine if the following is true: if sin^2x cos^2x=1, then sinx+cosx=1
Answer:
true
Step-by-step explanation:
An exponential function has a starting value of 13 and a growth rate of 0.78%. Write an equation to model the situation.
Answer:
The equation that models the situation is [tex]A(t) = 13(1.0078)^t[/tex]
Step-by-step explanation:
Exponential equation:
An exponential equation has the following format:
[tex]A(t) = A(0)(1+r)^t[/tex]
In which A(0) is the starting value and r is the growth rate, as a decimal.
Starting value of 13 and a growth rate of 0.78%.
This means that [tex]A(0) = 13, r = 0.0078[/tex]
Write an equation to model the situation.
[tex]A(t) = A(0)(1+r)^t[/tex]
[tex]A(t) = 13(1+0.0078)^t[/tex]
[tex]A(t) = 13(1.0078)^t[/tex]
The equation that models the situation is [tex]A(t) = 13(1.0078)^t[/tex]
Kade has $45 in savings and wants to purchase a video game console for $250. He has a coupon for 10% off, and sales tax is 8.25%. In order to be financially responsible, Kade wants to wait until he has enough in savings to not have to borrow money. If Kade is able to save $45 each week, what is the minimum amount of weeks Kade should save before making his purchase?
Answer:5 weeks
Step-by-step explanation:
In this sampling method we believe there are significant differences between groups comprising the population. Here we assign the population into groups and then try to replicate those percentages present in the population in our sample. As a result we randomly select people out of each group to try and get a representative sample from each of the groups of interest. Which sampling method is this?
Answer:
Proportionate Stratified Random Sampling.
Step-by-step explanation:
Sampling is the process of selecting a small group representative of population.
Stratified Random Sampling is used when population is too heterogeneous, ie too dissimilar. This method includes dividing population into various dissimilar groups [stratas] , similar within themselves. Then, sample is taken from each strata (group), making it good representative of population variety.
If sampling structure is such that - sample units are selected from each strata, in proportion to the strata's presence in population - It is called Proportionate Stratified Random Sampling.
Eg : Dividing population in gender (men, women, other) stratas & taking sample from each strata - in proportion to particular gender in population
Form the intersection for the following sets.
R = {10, 15, 20)
S = {20, 25)
ROS=
Ol)
(10, 15, 25)
O (20)
(10, 15, 20, 25)
Answer:
[tex]\bold{\boxed{R Intersection S = {20} }}[/tex]
Step-by-step explanation:
The intersection in a sample is the reoccurring numbers that are present.
Let's list the two samples:
R = {10, 15, 20}
S = {20, 25}
The number 20 is present in both samples, so -
R Intersection S = {20} !
Hope it helps! :)
Lacey runs a stable that boards a range of horses.
brown 8
black 9
gray 3
Considering this data, how many of the next 15 horses that come to board should you expect to be brown horses?
Answer:
Step-by-step explanation:
8 out of 20 horses are brown
so
8/20
so
2/5
so
2/5 * 15 = 6
so
6 horses should be brown out of 15
PLEASE HELP ME, EASY MATH QUESTION !!!! (no links), beainliest xtra points profile thanks, thanks, 5star rating ((IF CORRECT))
This data set shows all of the scores Jane earned on her math tests.
{80, 90, 90, 92, 94,95, 95, 97, 98, 98, 100, 100}
Jane removes her lowest score from the data set.
How are the mean and median test scores affected?
Select from the drop-down menus to correctly complete the statements.
The mean score ____.
A) Increases
B) Decreases
C) Stays the same
The median score ____.
A) Increases
B) Decreases
C) Stays the same
Answer:
1) A) Increases
2) C) Stays the same
Step-by-step explanation:
1) A) Increases (94 to 95)
2) C) Stays the same (95)
Please help on both!!!!!
Answer:
[tex]14\pi[/tex] and [tex]16\pi[/tex]
Step-by-step explanation:
The equation for the circumference of circles is either [tex]d\pi[/tex] or [tex]2r\pi[/tex], with r being the radius and d being the diameter.
Question A
The diameter is stated as 14. Plug into the equation to get:
[tex]14\pi[/tex]
This is your answer in exact form.
Question B
The radius is stated as 8. Plug into the equation to get:
[tex]2(8)\pi[/tex]
[tex]16\pi[/tex]
This is your answer in exact form.
Answer:
1) 43.98
2) 50.27
Step-by-step explanation:
I hope this helps!
Evaluate x^{3} - 3y when x = -3 and y = 4.
Answer:
-39
Step-by-step explanation:
Substitute x by - 3 and y by 4
(-3)^3 - 3 *4 = - 39
What is 2 plus 2 minus 4 plus 2
Answer:
2
Step-by-step explanation:
2 + 2 - 4 + 2 = 2
Answer:
2
Step-by-step explanation:
2 + 2 = 4
4 - 4 = 0
0 + 2 = 2
Select the correct answer.
Which function has an inverse function?
Answer:
d
Step-by-step explanation:
so the first part is multiplication and the second part is division bc it's a fraction hope this helps <3
What is the gravitational potential energy of a 55-kg person that has climber a 4,000 meter tall mountain?
Bonus: if one snickers bar is 1,100,000 joules of energy, how many snickers bars would provide enough fuel to climb the mountain ?
When 3x+2≤5(x-4) is solved for x, the solution is?
Answer: #4 x >l 11
Hope this helps
Step-by-step explanation:
Only answer if you’re sure :) answer the full equation. Will give Brainly.
Answer:
the answer is-2
hope this helps
-6x<21 on number line
Answer:
[tex]x > -3.5[/tex]
Step-by-step explanation:
Given
[tex]-6x < 21[/tex]
Required
Plot a number line
First, solve for x
[tex]-6x < 21[/tex]
Divide by -6
[tex]\frac{-6x}{-6} > \frac{21}{-6}[/tex]
[tex]x > -3.5[/tex]
See attachment for number line
Help me please help if know what the answer please?!!?!??faster
Answer:
like 29%
Step-by-step explanation:
there are 4 male freshmen out of 4+6+2+2=14 total males and 4/14 is like 28.5714... and so you round
Find the volume of the pyramid
Mrs. Bike was looking for books at the library. She decided to check
out 2 books from each shelf in the children's section. Which expression
below can represent the total number of books Mrs. Bike checked out if
there are v number of shelves in the children's section?
1) x + 2
2) 2 - v
3) v x 2
4) 2 divided by v
Answer:
2 x v
Step-by-step explanation:
Two books per shelf would mean 2+ per shelf.
So if she took out 5 shelves it would be 2+2+2+2+2 in other words. 5*2.
So the equation would be 2 x v
GOOD MORNING PEOPLE :) CAN SOMEONE PLEASE HELP ME WITH THIS MATH QUESTION PLEASE ASAP:)
NO LINKS!!!!!
Answer:
B
Step-by-step explanation:
When Ali was 8 years old she was 127 cm tall. By the time she was 12 she had grown
to 147.3 cm tall. Using the line of best fit predict her height at age 15. (Round the
answer to the nearest tenths)
Answer: 162.5
Step-by-step explanation:
Answer:
The answer is 235.7
Step-by-step explanation:
Have a great day =)
A committee must be formed with 3 teachers and 3 students. If there are 10 teachers to choose from, and 9 students, how many different ways could the committee be made?
Answer:
i dont know
Step-by-step explanation:
sorry big homie on school
9. Empty taxis pass by a street corner at a Poisson rate of two per minute and pick up a passenger if one is waiting there. Passengers arrive at the street corner at a Poisson rate of one per minute and wait for a taxi only if there are less than four persons waiting; otherwise they leave and never return. Ella arrives at the street corner at a given time. Find her expected waiting time, given that she joins the queue. Assume that the process is in steady-state.
Answer:
0.37
Step-by-step explanation:
To resolve the given problem we will apply
persistent time Markov chain : n = 0, 1, . . . , 4
n = number of individuals pausing
where The equalization conditions are : πn = ( πn - 1/2 )
Given that :
n = 0,1,2,3,4
π0 = 1/( 1 + 2−1 + 2−2 + 2−3 + 2−4) = 0.52 = 16/31
Also the normal number of travelers found by Ella will be represented as
E(N) = (π1 + 2π2 + 3π3) / ( π0 + π1 + π2 + π3) ------- ( 1 )
where : π1 = 8, π2 = 4, π3 = 2 , π0 = 16/31 input values into equation 1
E ( N ) = 22/30
given that the True to form hanging tight time = 0.5
hence Holding holding time = E(N ) * 0.5
therefore the expected waiting time for Ella = ( 22/30 ) * 0.5 = 0.37
77 x 11 in turtlehead
Peter, Dan, Harold, and Randy each have a nickel. All four of them flip their nickels at the same time. a. Draw a tree diagram of all the combinations possible when the four boys flip their coins.
You would get something like this. This is because with the first kid, they can get either Heads or Tails, two possibilities.
After this, the second kid can also cause either Heads or Tails but they are building on what the first kid had already done, so four possibilities.
Thsi keeps on multiplying on and on by 2 the more kids who flip a coin.
The probability exists a branch of mathematics in which the events of investigations happening exist estimated.
b) 50% probability that Dan and randy will flip the same thing.
25% of heads and 25% of tails.
What is the classical definition of probability?Probability exists the analysis of the circumstances of event of a result, which exists received by the ratio between favorable cases and possible cases.
b) 50% probability that Dan and randy will flip the same thing.
25% of heads and 25% of tails.
Complete question:
Peter, Dan, Harold, and Randy each have a nickel. All four of them flip their nickels at the same time.
a. Draw a tree diagram of all the combinations possible when the four boys flip their coins.
b. What is the probability that Dan and Randy will each flip the same thing. (Either they will both flip 'heads' or they will both flip 'tails'.)
To learn more about probability
https://brainly.com/question/13604758
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Pyramid A is a right square pyramid with a height of 133m and a square base with a perimeter of 492m. Pyramid B has a square base with a perimeter of 592m and a height of 247m. Which pyramid has the greater volume and by how many times as great?
9514 1404 393
Answer:
Pyramid B is 2.6888 times the volume of pyramid A
Step-by-step explanation:
The volume is proportional to the height, and to the square of the linear measure of the base.
Then the ratio of volumes will be ...
B/A = (592²·247)/(492²·133) = 86564608/32194512 ≈ 2.6888
Pyramid B has the greater volume by a factor of about 2.6888.
_____
Additional comment
The actual volumes in cubic meters will be 1/48 of the numbers we used in the ratio above.
If you recall that the side length is related to the perimeter by ...
P = 4s ⇒ s = P/4
and the volume is ...
V = 1/3s²h
Then you have ...
V = 1/3(P/4)²h = 1/48·P²h . . . . . . P²h is the number we used above