Using the relation between velocity, distance and time, it is found that it will take her 6 hours to get to the arch.
What is the relation between velocity, distance and time?Velocity is distance divided by time, that is:
v = d/t.
For this problem, we have that:
She drives 390 miles, hence d = 390.Her velocity is of 65 miles per hour, hence v = 65.We can solve the equation for t to find the time, hence:
65 = 390/t
65t = 390
t = 390/65
t = 6.
It will take her 6 hours to get to the arch.
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4) -3x - 2y = -17
9x + 2y = 23
A) (1,7)
B) (10,7)
C) (5, 7) D) (-7, 7)
Answer:
A). (1, 7)
Step-by-step explanation:
-3x – 2y = -17
9x + 2y = 23
____________+
6x = 6
x = 6/6
x = 1
9x + 2y = 23
9(1) + 2y = 23
9 + 2y = 23
2y = 23 - 9
2y = 14
y = 14/2
y = 7
An NBA trainer wants to know if his stretching routine is helping the players on his team jump higher. He records the average height jumped for 8 players before completing his stretching routine, and then again after they have stretched. What is the parameter? Group of answer choices dbar = the true sample mean difference in jump height mu_d = the true sample mean difference in jump height dbar = the true population mean difference in jump height mu_d = the true population mean difference in jump height
Answer:
a. mu_d = the true population mean difference in jump height
Step-by-step explanation:
In statistical parlance, observations used for a study could either be randomly chosen points or members of a large group or population, this small chosen observation obtained from a larger group is called the sample, the statistical measures or characteristic of such group is called statistic; while statistical characteristic, computations or measurement of the entire group of observations is called the parameter.
Mean of sample are usually represented with a bar sign on top such as (xbar) ; while mean of a population is represented as μ.
Help me please. This is due tonight.
Answer:
84=40x+.22
-.22 -.22
83.78=40x
83.78/40=2.0945
you can drive at most 2 miles per day
Questions:
1. If the run of a ramp increases and the rise stays the same, how does the slope of the ramp change?
9514 1404 393
Answer:
slope decreases
Step-by-step explanation:
The slope of a ramp is directly proportional to the rise and inversely proportional to the run. When the run increases, the slope decreases.
PLEASE HELP
Select the graph that shows the correct sum.
Answer: It’s the second option
Step-by-step explanation:
An iPad that was originally on sale for $1075 is now on sale for $ 623.50. What is the percent markdown( percent decrease)?
y + 5 = (x + 3)
slope (m): ?
coordinates: ?
Answer:
Your slope would be: -5
Step-by-step explanation:
First we need to format it into a linear equation which is: y= mx+b
y+5= (x+3)
and than minus 5 on each side to get:
y=(x+3)-5
than use distributive property to get:
y= -5x+-15
your slope would be:
-5
and than you can get any coordinates from the line if you graph the line on the site "desmos" so just use that site :)
hope it helps!
Sue has 100 dimes and quarters. If the total value of the coins is $21.40, how many of each kind
of coin does she have?
Catherine has an unpaid balance on her credit card of $345.38. She has new charges of $195.65 this month and her monthly interest rate on the unpaid balance is 1.75%. What is the total balance on her monthly bill (to the nearest whole cent)?
$561.90
$555.55
$550.50
$570.08
None of these choices are correct.
Answer:
345.38+195.65+((345.38×(0.0175÷12))
=541.53
If the triangle has a base length of 8in and a total area of 32 in what is the height
PLEASE HELP! DUE IN 5 MINS!
Answer:
1.33
15.96
1.25
15.00
this week
96 cents
Aubree took a taxi from her house to the airport. The taxi company charged a pick-up
fee of $2.20 plus $2.75 per mile. The total fare was $59.95, not including the tip. How
many miles was the taxi ride?
At a local fitness center, members pay a $10 membership fee and $4 for each aerobics class. Nonmembers pay $6 for each aerobics class. For what number of aerobics classes will the cost for members and nonmembers be the same?
Answer:
5 classes
Step-by-step explanation:
Let x represent the number of aerobics classes
Create an equation that sets the member and nonmember prices equal to each other, then solve for x:
4x + 10 = 6x
10 = 2x
5 = x
So, after 5 aerobics classes, the costs will be the same.
find the value of each variable in the parallelogram
Answer:
1. x = 15°
2. y = 12
Step-by-step explanation:
1. Determination of the value of x.
(5x – 5) + 110 = 180 (Adjacent angles add up to 180)
5x – 5 + 110 = 180
5x + 105 = 180
Collect like terms
5x = 180 – 105
5x = 75
Divide both side by 5
x = 75/5
x = 15°
2. Determination of the value of y.
3y – 4 = 2y + 8 (opposite sides are equal)
3y – 4 = 2y + 8
Collect like terms
3y – 2y = 8 + 4
y = 12
a basket had 120 star apples and mangoes.if there are 90 mangoes what is the ratio of mangoes to star apples.?
Answer:
3 : 1
Step-by-step explanation:
120-90=30
90 mangoes
30 apples
90 : 30 divide both by 10
9 : 3 divide both by 3
3 : 1
A box contains 48 marbles. Two-thirds of the marbles are red. Three-fourths of the red marbles in the box are red and striped. How many of the marbles in the box are red and have stripes?
A.24 marbles
B.12 marbles
C.32 marbles
D.16 marbles
Answer:
C
Step-by-step explanation:
Answer: 24
Step-by-step explanation: 24
Simply multiply all of the fractions with the total number of marbles
48(2/3)(3/4)
Your friend needs your help. His parents have told him that it is time for him to start paying for his own cell phone. After completing some research on the internet, you have narrowed down his options. Option 1 charges $0.30 for each cell phone call and $25 for unlimited text messaging. Option 2 charges a flat rate of $40.
Which plan is the best option?
Answer:
For less than 50 calls, option 1 is the best, while for more than 50 calls, option 2 is the best.
Step-by-step explanation:
Option 1:
For n calls, the cost is given by:
[tex]C_{1}(n) = 25 + 0.3n[/tex]
Option 2:
The cost is flat of 40, so [tex]C_{2}(n) = 40[/tex]
Which plan is the best option?
Depends on the number of calls, as for a high number, [tex]C_1[/tex] will be higher than [tex]C_2[/tex]. We have to find this number. So
[tex]C_{1}(n) > C_{2}(n)[/tex]
[tex]25 + 0.3n > 40[/tex]
[tex]0.3n > 15[/tex]
[tex]n > \frac{15}{0.3}[/tex]
[tex]n > 50[/tex]
This means that for less than 50 calls, option 1 is the best, while for more than 50 calls, option 2 is the best.
Tell whether the triangles are similar. Explain your answer.
Please help!!
how do I find 16% of 575
Answer:
92
Step-by-step explanation:
The easiest way for me to find any percentage of a number is to find what 1% is and then multiply by the % amount. So to answer this question I would do 575/100 which is 5.75 and this is 1% then multiply 5.75 by 16 to get 92 so a 16% of 575 is 92. (Double check to make sure I'm correct)
helppppp!!!!!!!!!!!plz
Answer:
the answer is point A it's the first one point A
Answer: One of your answers are right. (B and A)
Step-by-step explanation: The opposite of positive 2 will be negative 2, and -2 is at Point A.
if I go into the store with $26 and I leave and come out with $11.70 how much did I spend
Answer:
$14.30
Step-by-step explanation:
26 - 11.70 = 14.30
determine the relationship between the measures of the given angles
∠PTV > ∠VPT. This is because the angle opposite to the larger side is greater.
What are angles and dihedral angles? What is equation modelling? In Euclidean geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles formed by two rays lie in the plane that contains the rays. Angles are also formed by the intersection of two planes. These are called dihedral angles.Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.Given is a 2 - D image as shown in the question.
It can be concluded that ∠PTV > ∠VPT. This is because the angle opposite to the larger side is greater.
Therefore, ∠PTV > ∠VPT. This is because the angle opposite to the larger side is greater.
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I'm fishing. The probability of catching a fish on each cast of my rod (each attempt) is 0.23. Each attempt is independent. If I made 12 attempts and wanted to find the probability that I caught 2 or fewer fish, is this a geometric or binomial situation
Answer:
This is a binomial situation.
Step-by-step explanation:
For each attempt, there are only two possible outcomes. Either you catch a fish, or you do not. This can mean that either we have a binomial distribution, or a geometric.
However, each attempt is independent, which means that in each attempt, the probability of catching a fish is the same, and that this is a binomial situation.
The probability of catching a fish on each cast of my rod is a binomial distribution.
From the question, we can see that there are two possibilities which are whether you catch a fish or not. This gives two possibilities showing that we have a binomial distribution.
However, each attempt is independent, which means that one attempt does not affect the other. This is therefore a binomial situation.
Hence the probability of catching a fish on each cast of my rod is a binomial distribution.
Learn more on binomial probability here: https://brainly.com/question/15246027
The sales tax in Whittle City is 7%, how much tax is charged on a purchase of $53?
Answer:
3.71$
Step-by-step explanation:
Answer:
$3.71 hope this helps
Step-by-step explanation:
-X – 3, solve for a when g(x) = 6.
PLSSS
If I have 41 red mechanical pencils and each pencil has 3 pieces of lead in it. How many pieces of lead are there in all
Answer:
there are 123 pieces of lead in all
how to write 8 + 9x in algebraic expression
Answer:
17x
Step-by-step explanation:
Answer:
8+9+x?
Step-by-step explanation:
Ken earned $128 from his part-time job this summer. He spent 25% of his money on games. He is going to donate 1/6 of the remaining money to charity. How much will the charity receive?
A) $15
B) $16
C) $32
D) $80
Please explain how to do it also
Answer:
B) $16
Step-by-step explanation:
Alright so first you want to take the total amount of money made :
$128
Next you want to find 25% of this number (or 1/4) and subtract it from the total.
So :
128 / 4 = 32
So now we take 128 and subtract 32. (32 = 1/4 or 25% of 128)
128 - 32 = 96
Ken now has $96 left over after spending money on games.
So now that we have this number we need to find 1/6 of it because he took 1/6 of the money after he bought games and put it towards charity.
So :
96 / 6 = 16
16 is equal to 1/6 of his leftover money after games and is the amount the charity received.
B) $16
I hope this helps! :)
If you are confused or have any questions please comment or dm and I would be happy to help.
Also change the pfp FeelsGoodMan
Answer:
B) $16
Step-by-step explanation:
1. First let's find how much he spent on games. Multiply 0.25 to 188. 0.25 x 128 = 32.
2. Now subtract that amount from the original $128. 128 - 32. = 96.
3. Then, multiply 1/6 from 96. 1/6 x 96 = 16. This $16 is the amount the charity will receive.
a bag contains 3 red balls 3 green ball and 1 blue ball.a ball is chosen at random and then placed back in the bag. a second ball is chosen at random. Find the probability that :a) the first ball is red?
Answer:
its a three out of seven then it stays the same
Step-by-step explanation:
What is 49% in a decimal
Answer:
0.49
Step-by-step explanation:
Answer:
Step-by-step explanation:
49% = 0.49 in decimal form. Percent means 'per 100'. So, 49% means 49 per 100 or simply 49/100. If you divide 49 by 100, you'll get 0.49 (a decimal number).