9514 1404 393
Answer:
8 3/4 hours
Step-by-step explanation:
Time is inversely proportional to speed for the same distance. The time for 1.2 times the speed will be 1/1.2 times the given time:
(10.5 h)/1.2 = 8.75 h
It will take 8.75 hours at the increased speed.
Really need help on this math question! “Jill is draining her pool before winter arrives.
Initially the pool has 2000 gallons of water.
The pool is draining at a rate of 8 gallons per minute.
Write a function to model this situation.”
Answer:
f(x)=2000-8x
Step-by-step explanation:
2000 is initial amount that gets subtracted
8x is the amount of gallons being siphoned out, where x is t, or minutes.
I NEED HELP ASAP PLEASE HURRY
Marc wants to buy a bestselling book and a DVD of the movie based on the book. He has $30 to spend. Find the estimated total cost of the two items by rounding their prices to the nearest dollar. Will Marc be able to purchase both items with the money he has?
Prices, including taxes: Book: $10.58 and DVD: $19.50
The estimated total to the nearest dollar is $29, so he can afford both items.
The estimated total to the nearest dollar is $31, so he can afford both items.
The estimated total to the nearest dollar is $29, so he cannot afford both items.
The estimated total to the nearest dollar is $31, so he cannot afford both items.
Answer:
The estimated total to the nearest dollar is $31, so he cannot afford both items.
Step-by-step explanation:
10.58 rounded is 11
19.50 rounded is 20
11+20=31
Answer:
I think it would be last one. Based on the idea that 10.58 would round up to 11.00, and the DVD would add up to 20.oo
that would equal 31.00, and he only has 30.00 to spend.
So I would say D.
Step-by-step explanation:
3(4x+8) + 3(2x - 6)
Match the equivalent expressions
Answer:=18x+6
Step-by-step explanation:
3(4x+8)+3(2x-6)
12x+24+6x-18
12x+6x+24-18
18x+6
A company makes spherical tanks that store chemicals. Their standard model has a diameter of 6 meters, but a customer needs a larger tank whose capacity is 2.5 times the volume of the standard model. What is the approximate diameter of this larger tank? Round to the nearest tenth.
Answer:
The approximate diameter of the larger tank is 8.10 meters
Step-by-step explanation:
Here, we want to calculate the diameter of the larger tank
The volume of a sphere
V = 4/3 * π * r^3
Let us calculate the volume of the standard model
That will be;
Since diameter is 6 and r = d/2
r = 6/2 = 3 meters
V = 4/3 * π * 3^3 = 36 π m^3
Now, the volume of the larger tank is 2.5 times of this;
The volume of the larger tank is 2.5 * 36 π = 90 π m^3
So we can calculate the radius of this before we calculate its diameter
4/3 * π * r^3 = 90 π
4r^3/3 = 90
r^3 = 270/4
r^3 = 67.5
r = 3x√(67.5)
r = 4.07 m
Diameter here is 2 times this
= 4.07 * 2 = 8.14
Answer:
8.1
Step-by-step explanation:
SOMEONE pLZ HELP ME SOLVE THIS IM GETTING so MADDD
Answer:
Vertex Form: y= 2(x−1)^2−7
Step-by-step explanation:
I believe this is correct
which COULD be the new coordinates of point D?
Answer:
It is B
Step-by-step explanation:
4, -4 is longer than 2 units
-2, -2 is longer than 2 units
-1, -4 is longer than 2 units
AHH HELP-
solve for y.
-2x + y = 5
what does y equal and how did you solve it?
Answer:
x = - 5 + Y _ _ 2 2Step-by-step explanation:
I just moved all terms that don't contain x to the
right side and solved!
Hope this Helps!
I need help with this question pls
Answer:
yes
Step-by-step explanation:
yes it is because if 6ounces is $2.10 and the more ounces you add the higher the cost
btw just copy/paste :P
1000 divided by 4 equal to what
Answer:
250?
Step-by-step explanation:
1000÷4=250
I think this is the right answer.
Answer:
250
Step-by-step explanation:
100/4 =25
you just add another 0
While organizing her DVD collection, Jessica put 5 DVDs on the first rack, 10 DVDs on the second rack, 20 DVDs on the third rack, 40 DVDs on the fourth rack, and 80 DVDs on the fifth rack. If this pattern continues, how many DVDs will Jessica put on the sixth rack?
Answer:
160
Step-by-step explanation:
Number of DVDs put on the first rack = 5
Number of DVDs put on the second rack = 10
If we closely observe, the number of DVDs on the second rack is nothing but number of DVDs on the first rack multiplied by 2.
Number of DVDs put on the third rack = 20
If we closely observe, the number of DVDs on the third rack is nothing but number of DVDs on the second rack multiplied by 2.
Number of DVDs put on the fourth rack = 40
If we closely observe, the number of DVDs on the fourth rack is nothing but number of DVDs on the third rack multiplied by 2.
Number of DVDs put on the fifth rack = 80
If we closely observe, the number of DVDs on the fifth rack is nothing but number of DVDs on the fourth rack multiplied by 2.
Therefore, to find the number of DVDs on the sixth rack as per similar pattern, we need to multiply the number of DVDs on the fifth rack with 2.
Number of DVDs on the sixth rack = [tex]80\times 2 = \bold{160}[/tex]
3) FUNDRAISING At a fundraising event, $10 is donated for every mile ran.
Write a function to represent the situation. *
A. O d-10m
B. O d= m + 10
C. O d=10m +10
D. O dem
Answer:
A
step-by-step explanation:
"d" I take it means donations or amount donated so if it's 10 per mile ran or 10m then you would write the equation as d=10m so it's A. Hope You found this helpful :D
A function that represents the situation is d = 10m.
The correct option is A.
What is a function?A relation between a collection of inputs and outputs is known as a function. A function is a connection between inputs in which each input is connected to precisely one output. Each function has a range, co-domain, and domain.
Given:
At a fundraising event,
$10 is donated for every mile ran.
Let m be the number of miles.
And d is the total donation.
So, the function,
d = 10m
Therefore, d = 10m is the function.
To learn more about the function;
brainly.com/question/28303908
#SPJ5
HELP MATH STIKES AGAIN!
Hotel A hotel charges $140 per night for the first two people and $10 for each additional person. Hotel B charges $80 per night for the first two people and $20 for each additional person. At how many additional people per night is the rent for the two rooms the same.
I will mark brainlyist for correct answer
Answer:
9
Step-by-step explanation:
Which equation describes a line perpendicular to line R that passes through the point
(3, –6)?
A.x – 3y = 21
B.3x + y = 3
C.3x – y = 15
D.3x – y = 3
Answer:a
Step-by-step explanation:
Can someone Help me I'm Stuck on these three Questions
Z+(-7)=-8
13=Z+18
12=T+3
Explain your answer
Thanks For the Help:)
Answer:
1.) z = -1
2.) z = -5
3.) t = 9
Step-by-step explanation:
z + (-7) = -8
=> add 7 to both sides
z = -1
13 = z + 18
=> subtract 18 from both sides
-5 = z
12 = t + 3
=> subtract 3 from both sides
9 = t
plz help i will mark you as brainlist
Answer:
C. Six is to the left of the zero and negative six is to the right.
Step-by-step explanation:
Simple, think of a number line and zero is in the middle, to the left there is positive numbers, like six, and to the right there is negative six.
what is
4.1 - 1.25 over 0.005
Answer:
Step-by-step explanation:
4.1-1.25=2.85
lets divide
2.85/0.005=570
Answer:
2.85/0.005=570
Step-by-step explanation:
Hope this helped have an amazing day!
level 2 record the letters in your triangle from left to right
Answer:
EGBFDHAIC
Step-by-step explanation:
Lol i did this before hope this helps!!
I need an answer to What is: p - 10 = 5
Answer:
P would be substituted with 15, so the equation would be accurate
Step-by-step explanation:
Which of the following numbers is between 0.40 and 0.47?
A) 7/50
B) 19/50
C) 21/50
D) 43/50
Answer:
C. 21/50 because 21/50 written in a decimal is 0.42
please HELP MEEEEEEEEEEEEEEE
hola me gusta la matematicas
Answer:
that is spanish for "hello, i like mathimatics"
Step-by-step explanation:
it is
Answer: Do you want a translation? If you do, it says, "Hello, I like Mathematics."
Step-by-step explanation: I know spanish.
How many terms are in the expression 4x2 + y - 0 ?
help pleaseeee
Answer:
3 I did the test to btw
Step-by-step explanation:
did the test
HELP ME 50 POINTS RN.
Answer:
the last one. hope I help u
Answer:
S<30
need explain that?
Each of the numbers 0, 2, 4, 6, 8, 10, 12, and 14 is written on a separate sheet of paper and placed into a box. One piece of paper is selected at random. Find the probability that the piece of paper selected contains the number 8 or a number less than 12.
Answer:
For the second, all numbers less than 12, that would be 87.5%
Step-by-step explanation:
There are eight numbers. 100 divided by 8 is 12.5. 12.5 multiplied by 7 is 87.5.
determine the slope of the table
Answer:
The slope is -1/2 or -0.5
Hope this helps!
Answer:
The slope is 5
Step-by-step explanation:
if you add 2 to -3 then you get your answer
If f(x)=2(x-3)x4, what is f(-2)? PLEASE HELP ILL GIVE BRAINLIEST
Answer:
-160
Step-by-step explanation:
All you have to do is substitute -2 for all values of x!
Is that last x raised to the power of 4 (looks like [tex]x^4[/tex])?
If so, the equation is:
[tex]f(-2)=2(-2-3)(-2)^4[/tex]
2(-5)(16)
-10(16)
-160
What is the solution to the system of equations below?
y=-x+6 and y-x-6
O no solution
O infinitely many solutions
O (-18, 12)
O (18, 0)
Answer:
O (-18, 12)
Step-by-step explanation:
brainiest plz
Choose
1. Identify the y-intercept of the line with the given equation. y= 3x + 12
A) x
B) y
C) 3
D) 12
Calliope Is going to buy a television for $1349. If sales tax is 8%, find the price of the television including tax.
Answer:
The price including tax is $1,456.92
Step-by-step explanation:
First we need to convert our percentage into a decimal.
0.08
Now we need to multiply our price by the sales tax.
$1,349.00 × 0.08 = $107.92
Our sales tax is $107.92.
Added to our price it's $1,456.92.
On Miss Gless iPhone, she has 400 songs 24 of those songs are country songs. What percent of her songs are not country?
Your answer:
help o_o
Answer:
94%
Step-by-step explanation: