Emily's average speed will be 62 mph for the trip
What is Average speed?Average speed is defined as the ratio of the total distance traveled by a body to the total time taken for the body to reach its destination.
Emily travels 186 miles in three hours.
To determine Emily's average speed, we can divide the distance she traveled by the time it took her to travel that distance. Her average speed would be:
⇒ average speed = distance / time
⇒ average speed = 186 miles / 3 hours
Apply the division operation, and we get
⇒ average speed = 62 mph
This is Emily's average speed for the trip.
Learn more about the average speed here :
brainly.com/question/12322912
#SPJ2
you made a 12 minute call using a calling card. The call costs $0.66. there is a $1.21 left on your card. if the rate stays the same, how many more minutes can you talk for using the card
Help me out mathematics
Answer:
a its a
Step-by-step explanation:
Leo has 2 5/8 ounces of sunblock.
He uses one third of an ounce at
the beach. How much does he
have left?
Answer:
2 7/24
Step-by-step explanation:
Answer:
Step-by-step explanation: 6
Down bad rn plz help
Answer:
[tex]8x - 7 = 7x + 22 \\ 8x - 7x = 7 + 22 \\ x = 29 \\ kj = 7 \times x \\ 29 \times 7 \\ = 203[/tex]
Step-by-step explanation:
plz mark me as brainliest plzzzzz
Rachel received 5/8 of the 72 vote cast for class president. How many votes did she receive
Answer: Rachel recieved 45 votes.
Step-by-step explanation: Any easy way to solve this is to has the demonimator equal the total amount of votes. So in the questions, 8 is the denominator and 72 is the total amount of votes. To get from 8 to 72, you need to multiple 8 by 9. And whatever you do to the denominator, you must do to the numerator. So, 5 times 9 equal 45 which is the number of votes Rachel recieved.
Which shows the distributive property?
5x+2= 2+5x
5(x+2) = 5x+10
5(x+2)= 5(2+x
Answer:
5(x+2) = 5x+10
Step-by-step explanation:
A movie-streaming service charges $3.75 to watch a
movie. The following year, the price increases to
$5.25. What is the percent increase in the cost to
stream a movie?
Answer:
5.25 is a 40% increase of 3.75.
Step-by-step explanation:
Percentage of increase = |3.75 - 5.25|/3.75 = 1.5/3.75 = 0.4 = 40%
given h(x) = 5x -1, find h(1).
The required value of h(1) for the function h(x) = 5x -1 is 4.
Given that,
A polynomial function is given h(x) = 5x -1, it value at x = 1 ios to be determined.
Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.
What is a polynomial function?A polynomial function is a function that applies only integer dominions or only positive integer powers of a value in an equation such as the quadratic equation, cubic equation, etc. ax+b is a polynomial.
Here, according to the question
function h(x) = 5x -1
at x = 1
h(1) = 5(1) - 1
= 5 - 1
= 4
Thus, the required value of h(1) for the function h(x) = 5x -1 is 4.
Learn more about polynomial function here:
https://brainly.com/question/12976257
#SPJ2
Please help, I will give brainliest, I am struggling badly.
Answer:
Step-by-step explanation:
Answer:
im pretty sure the answer is "infinite solutions" hope this helps
Solve For X. Please add an explanation.
Answer:
Your answer is 2.5
Hope that this is helpful. Vote and like it
Look at the question
Answer:
Step-by-step explanation:
The better buy is the one where you get more area of pizza per dollar (area/price).
Since the problem gives diameter, we assume the pizzas are circle-shaped.
Circle Area = pi x (radius)², and radius r = 1/2 of diameter d.
*************************************************************************************
Pizza 1: d = 8 and price is $10
r = 1/2 x d = 4
Area of Pizza 1 = πr² = π(4)² = 16π
*** area/price for Pizza 1 = 16π/$10 = 1.6π area per dollar
**********************************************************************************
Pizza 2: d = 14 and price is $16
r = 1/2 x d = 7
Area of Pizza 2 = πr² = π(7)² = 49π
*** area/price for Pizza 2 = 49π/16 = 3.0625π area per dollar
***********************************************************************************
Pizza 2 is the better buy, with more pizza per dollar.
The radius of a sphere is increasing at a rate of 4 mm/s. How fast is the volume increasing (in mm^3/s) when the diameter is 60 mm
Answer:
The volume is increasing at a rate of 1508 cubic millimeters per second when the diameter is 60 mm.
Step-by-step explanation:
Volume of a sphere:
The volume of a sphere is given by the following equation:
[tex]V = \frac{4\pi r^3}{3}[/tex]
In which r is the radius.
Implicit derivatives:
This question is solving by implicit derivatives. We derivate V and r, implicitly as function of t. So
[tex]\frac{dV}{dt} = 4\pi r^2 \frac{dr}{dt}[/tex]
The radius of a sphere is increasing at a rate of 4 mm/s.
This means that [tex]\frac{dr}{dt} = 4[/tex]
How fast is the volume increasing (in mm^3/s) when the diameter is 60 mm?
This is [tex]\frac{dV}{dt}[/tex] when [tex]r = \frac{d}{2} = \frac{60}{2} = 30[/tex]. So
[tex]\frac{dV}{dt} = 4\pi r^2 \frac{dr}{dt}[/tex]
[tex]\frac{dV}{dt} = 4\pi*(30)^2*4[/tex]
[tex]\frac{dV}{dt} = 1508[/tex]
The volume is increasing at a rate of 1508 cubic millimeters per second when the diameter is 60 mm.
If the probability of an event is 0.39, what is the probability of its complement?
Answer:
Step-by-step explanation:
p'=(1-0.39)=0.61
A car dealership decreased the price of a certain car by 12%. The original price was $37,400.
(a) Fill in the blank to write the new price in terms of the original price. Write your answer as a decimal.
New=price × Originalprice
(b) Use your answer in part (a) to determine the new price.
Newprice:$
Answer:
$32912
Step-by-step explanation:
new price = price decrease × original price
new price = 0.88 × 37400
37400 decrease 12% =
37400 × (1 - 12%) = 37400 × (1 - 0.12) = 32912
4. Cassie has a total of 110 coins in her piggy bank. All the coins are q
total value of $20.30. How many quarters and how many dimes are
Solution:
Reply Reply all Forward
Answer:
b
Step-by-step explanation:
its easy
Answer:
there are 62 quarters and 48 dimes
Step-by-step explanation:
d + q = 110......d = 110 - q
0.10d + 0.25q = 20.30
0.10(110 - q) + 0.25q = 20.30
11 - 0.10q + 0.25q = 20.30
-0.10q + 0.25q = 20.30 - 11
0.15q = 9.30
q = 9.30/0.15
q = 62 <==== there are 62 quarters
d = 110 - q
d = 110 - 62
d = 48 <==== there are 48 dimes
Camilla walked 456 feet in the forest. How many yards did Camilla walk?
Answer:
152 yards
Step-by-step explanation:
456 divided by 3 equals 152
Answer:
456 feet equal 152 yards
Step-by-step explanation:
The student council at mountain view high school plans to conduct a survey to determine the student body's opinion of the new lunch menu. Which of the following sampling methods would be most likely to result in UNDERCOVERAGE bias?
A. Setting up a booth in the lunchroom where students can give their thoughts
B. Obtaining an alphabetical list of all students and surveying every 10th student
C. Handing out a questionnaire to seniors only
D. Handing out a survey to the first 50 students entering the cafeteria at lunch
Answer:
c
Step-by-step explanation:
just did it on a.pex
Please help, I will give brainliest, I am struggling badly.
Answer:
1 solution
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
When a virus is placed on a tobacco leaf, small lesions appear on the leaf. To compare the mean number of lesions produced by two different strains of virus, one strain is applied to half of each of 8 tobacco leaves, and the other strain is applied to the other half of each leaf. The strain that goes on the right half of the leaf is decided by a coin flip. The lesions that appear on each half are then counted. The data are given below:
Leaf Strian 1 Strain 2
1 31 18
2 20 17
3 18 14
4 17 11
5 9 10
6 8 7
7 10 5
8 7 6
What is the number of degrees of freedom associated with the apropriate t-test for testing to see if there is a difference between the mean number of lesions per leaf produced by the two strains?
a. 7.
b. 8.
c. 11.
d. 14.
e, 16.
Answer: a. 7
Step-by-step explanation: Degrees of Freedom is the number of values "allowed" to vary. For example:
In the experiment above, the sample has 8 tobacco leaves. Two strains will be applied to each leaf. The decision of which strain goes to the right or left is random. Each strain have 7 possible leaves it can be applied, because, for the last, the eight leaf, there is no choice.
Therefore, the degrees of freedom for this experiment is 7.
It can also be calculated as
df = n - 1
df = 8 - 1
df = 7
PLEASE HELP I WILL GIVE BRAINLEST.
Answer:
it would be 6*7=42 plus (13-7)*(6-3)/2 which equals 9, so 42+9=51
A map of a park is created on a coordinate plane. Each until on the map represents 1 kilometer. A tennis court is located at (0, 4). An eating area is located at (-3 -1) A dog is located at (-3, 4).
Answer:
Jul 11, 2016 · - Gush Tela, a 54-year-old man who was forced to flee with his family after the town of Humera, located in Ethiopia's Tigray region, was shelled by the Ethiopian Army. He was describing the scene he encountered as he returned to the town several days later; he and his family are now in a refugee camp in Sudan (as quoted on The Guardian )
Step-by-step explanation:
Can anyone help me???
Answer:
x=14√3
y= 28
Step-by-step explanation:
Below i've attached a 30-60-90 triangle
we can see from the picture that the side length opposite from 30 is just a
which means at a=14
The hyp is equal to 2a= 28
and x is equal to 14√3
Calculate slope
(0,-3), (-4,7)
Answer:
Step-by-step explanation:
(7 + 3)/(-4 - 0) = 10/-4 = -5/2
Question 9 of 10
What is the value of n?
11330
nº
1142°
A. 810
O B. 38°
C. 47°
D. 850
Answer:
n = 85
Step-by-step explanation:
Sum of supplementary angles = 180°
HELP BRAINLIEST IF RIGHT
Answer:
x<2.93
Step-by-step explanation:
During summer vacation Amanda ran a lemonade stand she bought a total of 65 lemons each bottle of lemonade need six lemons how many full batches can she make
Answer:10
Step-by-step explanation:
Kala will rent a car for a day. The rental company offers two pricing options: Option A and Option B. For each
pricing option, cost (in dollars) depends on miles driven, as shown below.
no 1
Option A
Option 3
Cost
10
(in dollars)
TO
Miles driven
Х
5
?
(a) If Kala drives the rental car 300 miles, which option costs more?
Option A Option B
How much more does it cost than the other option?
so
(b) For what number of miles driven do the two options cost the same?
If Kala drives more than this amount, which option costs more?
Option A Option B
Solve step by step:
n + 8 = -10
Answer:
n=-18
Step-by-step explanation:
subtract 8 from both sides.
then you do -10 subtracted by 8 and thats -18.
1/4( 16x-8)-8x= -1/3 ( ? x+9)
What is the only value you can substitute to have no values of x?
What number would I need to change 9 to have all values of x?
Answer:
d.16
Step-by-step explanation:
4(b - 4) ; b = 5
pls help
Answer:
The answers is 4
Step-by-step explanation:
Replace The variable b with 5 in the expression.
4( ( 5 ) - 4)
Subtract 4 from 5
4 - 1
And lastly multiply 4 by 1
I really hope this helps I am if I missed something please let me know but yeah I hope this helps you very much