Charlie and Violet met for lunch at a restaurant between their two locations (exactly in the middle). It took
Charlie 2.6 hours to get there, but it only took Violet two hours because she was driving 15 mph faster than
Charlie. The distance between the two of them initially was 260 miles. Find the speed of the two drivers.
Charlie
Violet
mph
mph
Answer:
Charlie 55 miles per hour
Violet 65 miles per hour
Step-by-step explanation:
Charlie and Violet met for lunch at a restaurant between Memphis and New Orleans. Since, Charlie left Memphis and drove towards New Orleans, and Violet left New Orleans and drove towards Memphis, the total distance that they covered altogether is the total distance between Memphis and New Orleans.
It is given that the distance between Memphis and New Orleans is 394 miles. This means, the total distance both covered = 394 miles
Charlie drove for 4.8 hours and Violet drove for 2 hours. Let the speed of Charlie be x miles per hour. Since, the speed of Violet was 10 miles per hour faster than Charlies, the speed of charlie was (x + 10) miles per hour
Since, distance = speed multiplied by time
Distance covered by Charlie = 4.8x
Distance covered by Violet = 2(x + 10)
Altogether they covered 394 miles,
So,
394 = Distance covered by Charlie + Distance covered by Violet
394 = 4.8x + 2(x + 10)
394 = 4.8x + 2x + 20
374 = 6.8x
x = 55
Since, x represents the speed of Charlie, the speed of charlie was 55 miles per hour and speed of Violet was 65 miles per hour
if m=6 and n=12 what is 2m+5
Answer:
17
Step-by-step explanation:
2m+5
2(6)+5
12+5
17
Answer:
2m+5
2(6)+5 ( if m=6, n=12 )
2×6+5
12+5
17
Step-by-step explanation:
Hope it is helpful.....
last year megan had 63 books in her collection now she has 112 books what is the percentage increase
Answer:
56.25%
Step-by-step explanation:
Divide
63/112 = .5625
Convert to a percentage
56.25%
Here are 7 numbers.
3.51
3
.
1.1
4.
4.5
2.5
2.81
Calculate the mean of these 7 numbers.
Answer:
3.06
I hope this helps you :)
Which of the following statements is NOT true about the graph of a system of equations with no solutions?
A. The lines will have the different slopes.
B. The lines will have different y-intercepts.
C. The lines will share none of the same points.
D. The lines will have the same slope.
Answer:
A
Step-by-step explanation:
A would be the best answer here because equations with no solutions would be parallel. That means they would have the same slope but with different y-intercepts. Since where the equations share points would be the solution, they cannot share points either.
Explain how to change 86% into an equivalent ratio written in simplest form
Answer:
I can't explain here since I can't write numbers.
Step-by-step explanation:
does anyone know this lol i just need a short explanation
Answer: pretty sure it’s because the left and bottom sides add up to equal the top side
Step-by-step explanation:
The area of a rectangular sheet of metal is 135 square inches. The perimeter is 48 inches. What are the dimensions of the sheet?
Answer: The length is 15 inches and breadth is 9 inches
Step-by-step explanation:
Given : Area of rectangular sheet = 135 square inches
Perimeter of rectangular sheet = 48 square inches
Now Area of rectangular sheet = [tex]Length\times Breadth[/tex] = 135 square inches
perimeter of rectangular sheet = [tex]2\times (Length+Breadth)[/tex] = 48 square inches
Thus [tex](Length+Breadth)[/tex] = 24 square inches
Thus Length = 15 inches
Breadth = 9 inches
Quick answer please
Answer:
D) 20m³
Step-by-step explanation:
1/2x4x2x5=20
7) 28 is 35% of what number?
Answer:
80
Step-by-step explanation:
28×100÷35=80
Pleaseeeeeeeeeeeeeeeee help nowwwwwwwwwwwwwww
what is the value of x?
Answer:
can be anything
Step-by-step explanation:
there's no context
Answer:
The letter "x" is oftenly used in algebra to mean the value that not shown yet it is even called a variable or sometimes even unknown in example x+5=10 , the 'x' is the variable.
I hope this will help u
Emilio made 51 potholders. Each potholder cost him $2.80 to make. If he sells each potholder for $3.26, how much profit will he make =)
Answer:
Your answer will be $166.26
Step-by-step explanation:
i found this out because i multiplied 51 times 3.26
Find 10.8% of 405. Round to the nearest tenth.
If 4(x – 3) + x = –2x + 10, what is the value of x?
Answer:
x=22/7
Step-by-step explanation:
4x-12+x=-2x+10
5x-12=-2x+10
5x=-2x+10+12
5x=-2x+22
5x+2x=22
7x=22
x=22/7
3. Blackberry is also in the business of selling phones. The data for the profit that Blackberry makes on selling tablets is represented by the following equation with profit being P(b) and b being number of blackberry phones sold (both variables in millions):
P(b) = -x2 + 8x – 8
a. Use the quadratic formula to solve the equation. What do these points tell us about the graph?
b. Complete the following table. Based on the table, estimate the vertex for the function. Is the vertex a max. or a min. point?
Blackberry: Profit from Smart Phones Sold
Smart Phones sold (in millions) b Profit (in millions of dollars) P(b)
-1
0
2 4
3
4
5 7
6
c. Sketch a graph for Blackberry. Label the x and y axis (for b and P(b))
Here is my answer. I left the latter question in a. as I don't actually know the answer. Anyway, I hope this is helpful although not complete.
What are 5 other types of waves (besides visible light) that are found in electromagnetic spectrum.
Answer:
The other types of EM radiation that make up the electromagnetic spectrum are microwaves, infrared light, ultraviolet light, X-rays and gamma-rays.
Step-by-step explanation:
Internet.
can someone help me really fast?
What are indications of a computer hardware problem? Check all that apply.
The printer is printing in black and white.
The keyboard keys are getting stuck.
plz
The computer monitor is going blank.
The pointer of the mouse freezes.
The images on the monitor look sharp.
Step-by-step explanation:
the answer is the keyboard keys getting stuck, it's something you can touch and feel, thus it's an hardware problem
Answer:
The printer is printing in black and white
Step-by-step explanation:
First person gets brainliest 4
45+9
Answer:
54
Step-by-step explanation:
Answer:
54
Step-by-step explanation:
What is the determinant of H=[0 2 3 -1 3 5 6 3 -2]
–58
–7
4
58
Answer:
-7
Step-by-step explanation:
right on edge 2021
The determinant of the provided matrix is -7 after opening the matrix option (B) -7 is correct.
What is the matrix?It is defined as the group of numerical data, functions, and complex numbers in a specific way such that the representation array looks like a square, rectangle shape.
It is given that a matrix:
[tex]\rm H = \left[\begin{array}{ccc}0&2&3\\-1&3&5\\6&3&-2\end{array}\right][/tex]
As we know, the determinant in arithmetic is a real number that is a variable of the rows and columns of a square matrix. It lets specifying a few aspects of the matrix and the linear map that the matrix provides.
Open the above matrix to find the determinant:
|H| = 0[(-6 - 15)] - (-1)[-4 - 9] + 6[10 - 9]
|H| = 0[-21] - (-1)[-13] + 6[1]
|H| = 0 - 13 + 6
|H| = -7
Thus, the determinant of the provided matrix is -7 after opening the matrix option (B) -7 is correct.
Learn more about the matrix here:
brainly.com/question/9967572
#SPJ2
The two trapezoids are congruent. What is the value of x?
Answer:
x=15
Step-by-step explanation:
for 20 points
How many meters are equal to 7 kilometers? Use the pattern in the number of zeros of the product when multiplying by a power of 10 to help you.
70 meters
7,000 meters
700 meters
70,000 meters
Use the following probability model to answer the question.
Event: For each adult resident in a city we ask how many
vehicles they own.
Number of Vehicles
Probability
0.04
0
1
0.41
0.38
0.13
UWN
0.03
0.01
Find the probability that an adult resident has 3 or more
vehicles. Give your answer as a number between 0 and 1.
Answer:
Step-by-step explanation:
Number of Vehicles Probability
0 0.04
1 0.41
2 0.38
3 0.13
4 0.03
5 0.01
X= 1
.13+.03+.01=0.17 (the amount with 3 or more cars)
0.17/1(Total amount of all probability)= 0.17 has 3 or more cars.
Probability is the chance of an event to occur from a total number of outcomes.
The formula for probability is given as:
Probability = Number of required events / Total number of outcomes.
The probability that an adult resident has 3 or more is 0.17
What is probability?
It is the chance of an event to occur from a total number of outcomes.
The formula for probability is given as:
Probability = Number of required events / Total number of outcomes.
We have,
The probability distribution of the number of vehicles is given as,
P(x) where x is the number of vehicles.
P(0) = 0.4
P(1) = 0.41
P(2) = 0.38
P(3) = 0.13
P(4) = 0.3
P(5) = 0.1
The probability that an adult resident has 3 or more.
= P(3) + P(4) + P(4)
= 0.13 + 0.03 + 0.01
= 0.17
Thus,
The probability that an adult resident has 3 or more is 0.17
Learn more about probability here:
https://brainly.com/question/14099682
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What equation is equal to 2y= 2x + 2?
Answer:
y = x+1
Step-by-step explanation:
2y = 2x+2 ( divide both sides of the equation with 2)
y = x + 1
What is the volume of this regular prism?
9.70 cubic inches
Step-by-step explanation:
To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.
Answer:
9.70 cubic inches
Step-by-step explanation:
Surface Area (SA) = √(25 + 10 * √5) * a² + 5 * l * h
2
Volume (V) = √(25 + 10 * √5) * a² * h
4
can anyone tell me time it's 11:24PM for me
Answer:
It's 11:55
Step-by-step explanation:
Calculate the area of the triangle:
A. 48 square units
B. 14 square units
C. 24 square units
D. 10 square units
HELP ME PLS PLS ASAP PLS PLZ PLS
Answer: C
Step-by-step explanation: 8(6)=24
Which table represents a quadratic function?
Answer:
Step-by-step explanation:
the bottom one forms a straight line.. so not that one
but the top one looks more like a cubic function .. maybe it could be a quadratic.
Can u guys pls help me on this question and pls explain how u got the answer
Answer:
17.4
Step-by-step explanation:
side 1=4.5
side 2=4.5
side 3=4.5
base 1=3.9
17.4