Answers
Answer:
2k + 5
Step-by-step explanation
did it on e2020
Related Questions
Create an equation that could be used to model the following scenario:
Alana spent half of her monthly income to pay for her cell phone bill. She then had to spend $38 to put gas in her car. She now has $17 left. How much money did she start the month with?
Answers
Answer: ( 38+17)x2=N
the answer in this equation is 110
Step-by-step explanation:
PLS HELP GUYS ILL GIVE BRAINLIEST!!!!!!!!!!!!!
1.5.4Practice:Scientific NotationPractice
Mathematics Grade 8
Points Possible:5
Name:Brooke Rowan Date:
Tips for Success
Read the assignment carefully and make sure you answer each part of the question or questions.
Check your work when you're done.
Your Assignment
Mercury is the closest planet to the Sun, with an average distance of 35,000,000 miles. It takes light about 3 minutes to travel from the Sun to Mercury.
Neptune is the farthest, with an average distance of 2.8 × 109 miles from the Sun.
How many times farther from the Sun is Neptune than Mercury? How long does it take light to reach Neptune? Follow the steps to find out.
1. Write the distance from the Sun to Mercury in scientific notation. Include units with your answer.
Write your answer in the space below.
2. Write and simplify an expression showing how many times farther Neptune is from the Sun than Mercury. Write the result in scientific notation.
Write your answer in the space below.
3. How many times longer does it take light from the Sun to reach Neptune than Mercury? Express this number in standard notation. Explain your reasoning.
Write your answer in the space below.
4. It takes light from the Sun about 3 minutes to reach Mercury. How many hours does it take light from the Sun to reach Neptune? Show your work.
Write your answer in the space below.
Answers
pls help will give brainliest
Answers
Answer:
In step three.
I hope this helps and teaches you a lesson.
Part I: Making the Race
Henri is Emile's younger brother and they are having a walking race. Emile can walk 2.5 meters per second whereas Henri walks 1 meter per second. Because Emile is faster, they give Henri a 45 meter head start. Emile knows Henri would enjoy winning the race, but they do not want to make the race so short that it is obvious Emile let Henri win.
1. How long should the race be so that Henri will win in a close race?
2. Describe or show your strategy on how you came up with your answer for #1.
Answers
Answer:
Step-by-step explanation:
To make the race close, the length of the race should be 450 meters.
Here's the reasoning behind the answer:
Let's first calculate how long it would take for Emile to catch up to Henri, assuming Henri starts 45 meters ahead.
The time it takes Emile to cover the same 45-meter distance is 45/2.5 = 18 seconds.
During this time, Henri would have walked a distance of 1 x 18 = 18 meters.
So, after 18 seconds, Emile will have caught up to Henri and will be 27 meters ahead of him (45 - 18 = 27).
To make the race close, we want Henri to finish just a split second before Emile. So, we can assume that Henri will finish the race just as Emile catches up to him.
Let's call the total distance of the race "d."
So, Henri will walk d meters, while Emile will walk d + 27 meters (the 27 meters is the distance Emile has to walk after catching up to Henri).
We can set up an equation to solve for d:
d/1 = (d + 27)/2.5
Solving for d, we get:
d = 450
So, the race should be 450 meters long for Henri to win in a close race.
Suppose 8x + 16 ice cream cones
were sold on Saturday and 7x - 9
were sold on Sunday. What is the total
number of ice cream cones sold?
A x + 7
B 152 +7
C 152 + 25
D 2 + 25
Answers
Answer:
B. 152 + 7
Step-by-step explanation:
(8x + 16) + (7x - 9)
8x + 16 + 7x - 9
15x + 16 - 9
15x + 7
None of these options have this answer, so we see A and B:
A. x + 7
B. 152 + 7
It can't be A because we have 15x and A is x + 7
By process of elimination we have B. 152 + 7
x = 10 and 2/15
I am really stuck on this can anyone help?
Answers
idk sry......
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Which of the following equations represents a linear function?
A: x = 3
B: y equals one half x minus 5
C: y equals three fourths x squared
D: 3x − 6 = 4
Answers
The solution is, Degree of functions y = x/2 - 5 is one, so, B: y equals one half x minus 5represents a linear function.
What is function?Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.
here, we have,
we know that,
A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.
The degree of polynomials in one variable is the highest power of the variable in the algebraic expression.
The degree of linear function is always one.
Degree of functions y = x/2 - 5, is one.
Hence, B: y equals one half x minus 5represents a linear function.
For more information on function :
brainly.com/question/20286983
#SPJ2
Find each probability.
Answers
Answer:
5,9
Step-by-step explanation:
I think row A would be 5 and B would be 9 im sorry if im wrong
5 on top 9 on bottom
A basketball player made 70 out of 100 attempted free throws. What percent of free throws was made?
The player made _____ % of the free throws attempted.
Answers
Answer:
70%
Step-by-step explanation:
answer this last question for me
Answers
Yesterday, 5% of the 120 sixth graders were late to school. How many sixth graders were late? Show your work or explain how you arrived at your answer.
Please keep it simple
Answers
Answer:
6
Step-by-step explanation:
1. 5% = 5/100 = 0.05
2. 0.05 x 120 = 6
WEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE.
Select all ratios equivalent to 3:2.
Answers
Answer:
18:12, 12:8
Step-by-step explanation:
18:12 = 3 * 6:2 * 6
12:8 = 3 * 4:2 * 4
Answer: 18 : 1 2 , 12 : 8
Cell phone company A charges $40 a month, with 500 free minutes and $0.10 a minute after that. Cell phone company B charges $25 a month and all minutes cost $0.05.
Answers
B = 25 + .05M
20 minutes a day for 30 days = 600 minutes per month
A(600) = 40+.1(100) = $50
B(600) = 25 + .05(100) = $30
Plan B is less expensive
40+.1(M-500)= 25+.05M
40-25- .1(500) = .05-.1M
.05M = 35
M= 35/.05 = 700 minutes will have the same cost under plan A or B
40+.1(200) = $60 under plan A
25+.05(700) = $60 under plan B
#SPJ1
Create an expression equivalent to 4(2x-3)-6x+74(2x−3)−6x+7 using the least number of terms.
NO LINKS
Answers
Answer:
144x-227
Step-by-step explanation:
4(2x-3)-6x+74(2x-3)-6x+7
Group like terms: 4(2x-3)+74(2x-3)-6x-6x+7
Add similar elements: 78(2x-3)-12x+7
Multiply: (78*2x)+(78*-3) -12x+7= 156x-234-12x+7
Group like terms: 156x-12x-234+7
Add the like terms: 156x-12x=144x and -234+7 = -227
Answer: 144x-227
8x-12-6x+148x-222-6x+7
159x-12-222+7
159x-203
As a fraction in simplest terms, what would you multiply the first number by to get the second?
Pls help I need the answer today....
Answers
Hallie and Mattie donated blue jeans to the clothing drive. Hallie donated 4 pairs of blue jeans. Mattie donated 6 pairs of blue jeans. Write a ratio to represent the relationship between Hallie's donation of jeans and Mattie's donation of jeans.
Answers
Answer:
2:3
Step-by-step explanation:
Hallie's Donation : Mattie's Donation = 4:6
simplified, it is 2:3
If you do 4/6 you’ll simplify to get 2/3.
please help me i will give brainliest to first person to anwser.
Answers
First we start with the formula for cylinders v=(pi)r(squared)h filled in Thats v=(3.14)(8 squared) (8) which brings us to the answer 1607.68 but you must round to the nearest tenth aka 1607.7
Answer:
The first option, V ≈ 1607.7 in²
Step-by-step explanation:
Find the volume of the given cylinder.
\(\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}\)
Given:
r = 8 in
h = 8 in
π = 3.14
Find:
V = ?? in³
\(\hrulefill\)
Now solving,
Substitute the given values into the formula:
=> V = (3.14)(8)²(8)
Using a calculator to simplify:
=> V = 1607.68 in²
Rounded to the nearest tenth:
∴ V ≈ 1607.7 in²
Thus, the first option is correct.
Find the missing values in the ratio table. Then write the equivalent ratios.
Answers
Answer:
trucks: 8, cars: 18
Step-by-step explanation:
kaylie and her family have decided to go on a mountain biking trip. use the graph tp draw a graph that represents their trip.
In one hour they rode one mile up the mountain. the next two hours they rode an additional three miles up the mountain. next, they stopped to have a lunch for an half hour. after lunch they rode two more miles up the mountain for two hours. finally they rode back to the bottom of the mountain in two hours.
Answers
Answer:
1234567891011121314151617
Answer:
where is the question?
Step-by-step explanation:
WHAT IS THE ANSWER PLEASE I NEED TO KNOW QUICKLY!!
Answers
Answer: 4/5 = 180/b; b = 225 boys
Answer:
Given that there are 4 boys for every 5 girls, we can set up the following proportion:
4/5 = x/180
where x is the number of boys.
To solve for x, we can cross-multiply:
5x = 4 * 180
5x = 720
x = 144
Therefore, there are 144 boys.
Step-by-step explanation:
your welcome, give me brainliest
Please answer the question.
Answers
The graph shows information about the lion population at a safari park. Lions were introduced in the park in 2010. In 2012, the park has a population of 32 lions. A year later, in 2013, the park has 128 lions. Write an exponential function that models this situation. Let X represent the number of years since 2010 and let f(x)represent the number of lions.
Answers
Ok sooo if you get the exponents all together and then divide then you should get your answer but since you’re on here and you need it then I’ll give it to you : f(x)=4 ; sine the past (x)2years there has been f(x) 4 times as much as lions.
Much appreciateddddd
Answers
Answer:
okay my cheese nachos with ghost pepper
Answer:
ok lol
Step-by-step explanation:
PLZZZ HELP ASAP
What is the solution for -3x ≥ 36?
x ≥ -12
x ≥ -108
x ≤ -108
x ≤ -12
Answers
Answer:
x ≥ -12
Step-by-step explanation:
Answer:
x ≤ -12
Step-by-step explanation:
-3x>= 36
X<= -12
when you divide x by a minus, the sign changes
easy math i'll mark brainliest
Answers
Q7: D
Q8: B
Step-by-step explanation:
Q7:
A cuboid is a three-dimensional shape, having six faces, where all the faces (top, bottom, and lateral faces) of the prism are rectangles, and every two opposing side faces are identical.
Therefore a cuboid is a rectangular prism.
Q8:
Volume of a cube
= l³
= 6 x 6 x 6
= 216 m³
2. B 216m^3
A pizza shop has four eighths of a cheese pizza pie and six eighths of a pepperoni pizza pie. How many pizza pies does the pizza shop have in all?
A. one eighth of a pizza pie
B. two eighths of a pizza pie
C. one and one eighth pizza pies
D. one and two eighths pizza pies
Answers
PLS HELP WILL MARK BRAINLIEST
Answers
Answer:
3
Step-by-step explanation:
I think its three i dont do alot of this but yea
Answer:
3
Step-by-step explanation:
I just know its 3 by looking it up lol
If x = 4, what is the y value for the following equation?
y = 12x + 6 - 2x + 2
y = 10
y = 12
y = 48
y = 52
Answers
Y=48+6-8+2
Y=48
Answer:
y = 48
Step-by-step explanation:
Substitute 4 in place of x in the equationThe equation should be y = 12 (4) + 6 - 2 (4) + 2Following the order of operations, multiple 12 x 4 and -2 x 412 x 4 = 48 and -2 x 4 = 8 Rewrite the equation again to y = 48 + 6 - 8 + 2When we solve the equation, y = 48help me pls.................
Answers
Answer:
a.) = 13
b.) = 27
c.) = 7.2
Step-by-step explanation:
a.)
5 × 2 ⅗
5 × 13/5
1 × 13 = 13
b.)
12 × 2 ¼
12 × 9/4
3 × 9 = 27
c.)
2 × 3.6 = 7.2
-TheUnknownScientist
Part 2: Organize Your Data
Create a table of values using the age and number of U.S. states named in 60 seconds.
A graph is provided with the first five points plotted. Use your table to add your five data points to the scatter plot.
You may create a new graph from scratch, containing all 10 points, print the sample graph and add your data, or save the sample as an image and use a drawing program to add your data to the image. If you choose to print and draw by hand, you need to be able to scan and upload your work at the end of the project.
A coordinate plane is shown. The x axis is labeled age in years and the y axis is labeled number of U.S. States named in 60 seconds. Five data points are already plotted on the graph. These points are located at 5 comma 7, 15 comma 42, 25 comma 49, 35 comma 35, and 65 comma 50.
Draw a line of best fit through your scatter plot. Draw by hand on your printed graph or use a drawing program on your computer to create the line.
Part 3: Drawing Conclusions
How did you decide where to place your line of best fit? Describe your reasoning.
Based on your data, describe the relationship between age and the number of U.S. states a person can name in 60 seconds.
Do you see any areas in your data or points that could be considered clusters or outliers? Explain your answer in complete sentences.
Answers
So I don’t know the other 5 points because you didn’t give the data about the age and number of US states named in 60 seconds, but using the 5coordinate points you gave, I was able to make this line of best fit.
So basically the units are counting up by 5.
The x axis is age in years and y axis is the number of US states named in 60 seconds.
Since you didn’t give me the data to make the other 5 points, I can’t really answer the last question, but from the graph that I did make, there are no points that would be considered outliers, and there are no clusters in sight.
(BTW THIS IS IMPORTANT!! - when you use the data to add the other 5 points, there might be an outlier or more then one outlier. And there might be a cluster. Just look at it after you graph the last 5 and change the answer I gave you if there is an outlier or cluster)
GRAPH IS HERE:
