Answer:O -18 divided by 2
Step-by-step explanation:
Willie left the mall and traveled toward the town hall at an average speed of 40 km/h. Gabriella left two hours later and traveled in the opposite direction with an average speed of 70 km/h. Find the number of hours Gabriella needs to travel before they are 410 km apart.
Answer:
Gabriella need to 2.45 hours of travelling to be 410km apart from Willie.
Step-by-step explanation:
In order to make them 410km apart and the time included in it is to be found
we proceed as
Willie left the mall earlier and Gabriella left two hours before
so willie has travelled for 2 hours while Gabriella was still at the initial point
with this logic we find the hours Gabriella needs as follows
Willie Gabriella
←←←←←←←← →→→→→→→→→→
40km/h 70km/h
X hours X+2 hours
40*x+70(x+2) = 410
40x+70x + 140=410
110x=270
x=270/110
x= 2.45hrs
The range of the following relation R{(3,-2), (1, 2), (-1,-4), (-1, 2)} is
Answer:
The range is all the y values.
Therefore, the range is : {-4,-2,2}.....I realize choice c has all the y values listed, however, if u have repeating y values, u only have to list it once.
Step-by-step explanation:
For some reason, in our history class, there are 14 boys than there are girls. If a total of 32 students are in the class, how many boys and how many girls are there?
Answer:
There are 23 boys and 9 girls in the class
Step-by-step explanation:
The given information is that the number of boys = 14 + The number of girls
The total number of boys and girls = 32
Let the number of girls = x
Therefore, we have;
The number of boys = 14 + x
The total number of boys and girls = 32 = The number of boys + The number of boys
The number of boys + The number of boys = 14 + x + x = 14 + 2·x
∴ The number of boys + The number of boys = 32 = 14 + 2·x
14 + 2·x = 32
2·x = 32 - 14 = 18
2·x = 18
x = 18/2 = 9
x = 9
Therefore, the number of boys is 14 + x = 14 + 9 = 23 boys
The number of boys = 23 boys
The number of girls = x = 9 girls
the number of boys = 23 boys
The number of girls = x = 9 girls
The number of girls = 9 girls
Therefore, there are 23 boys and 9 girls in the class.
How many terms are there in this linear polynomial? 2 m - n + 3
Answer:
3
Step-by-step explanation:
A term is any part of the equation that is separate from another part. In the equation, 2m - n + 3, 2m is a term because they are not separate, n is a term, and 3 is a term. I hope this helps and I hope it's not wrong but I don't think it is.
Brent divided 3 1/2 by 7. What number did he get?
Answer:
1/2 or .5
Step-by-step explanation:
Answer: 1/2
Step-by-step explanation:hope this helps! :)
(-1,2)(1.17) (3, -4)(1.20)
is this a function or relation
Answer:
relation
Step-by-step explanation:
graph y=4/5x - 7 pls
Answer:
I'm not exactly sure what you want answered here because you have the correct graph, but this is my graph and it's the same as yours
Emily wants to have her résumé printed. The printing company charges $24.50 for the first 100 résumés, and then a flat rate for each additional 100 résumés. Emily pays $48.50 for 300 résumés. Write a piecewise function that describes this situation. r(x) = and calculate how much is the flat rate for each additional set of 100 résumés after the first 100 résumés are purchased? Please label your answer and round to two decimal places (hundredths) if needed.
Answer:
________{$24.50 if x ≤ 1
r(x) - - - - - {24.50 + f(3 - 2) if x > 1
Flat rate paid for each additional 100 = $12
Step-by-step explanation:
Given that :
Cost of first 100 resume = $24.50
Flat rate for each additional 100 resumes
Total amount paid for 300 resumes = $48.50
Let x = number of sets of 100 resumes
Number of sets of 100 copies = {1, 2, 3}
Since first 100 copies = $24.50
r(x) = cost of printing resume
r(x) = 24.50 if x ≤ 1
Cost of additional 100 equals ;
Let flat rate paid for each additional 100 = f
r(x) = 24.50 + f(3 - 1) if x > 1
________{$24.50 if x ≤ 1
r(x) - - - - - {24.50 + f(3 - 2) if x > 1
The flat rate paid for additional 100 resume ;
(Total amount paid - cost of first 100) / 2
($48.50 - $24.50) / 2
$24 / 2
= $12
can you please explain slope, the y-intercept, how to find the equation and how to graph it properly?
Answer:
Slope is a line on a graph, you find slope with the m=yx+b equation. Y intercept is the point that the line crosses the y axis at, it is represented by b. X and Y in the equation are your coordinates. You graph it by starting at your y-intercept and going up in a straight line following the slope calculated.
Step-by-step explanation:
Think of a number. Add 5 to it, Subtract 3 and add 5 to it. Tell me your answer and I will tell you the number you chose.
Answer: cookie
Step-by-step explanation:
Answer:
9,999,723,143,213,413
Step-by-step explanation:
Which algebraic expression represents the phrase "seven more than half of a number”?
o 7 -1/2x
o -7+1/2x
o 1/2x+7
o -1/2x-7
PLEASE HELPPPP
Answer:
C
Step-by-step explanation:
Seven more is addition (+7)
Half a number would be represented by 1/2, and since the number is unknown, it would be represented by a variable (in this case, x)
C is the correct response
Hope this helps!
how do i factor this?
I don't know how to show the work but the answer is:
2(4x^2+3x-2)
The Organic Chemistry Tutor could help if you need to show your work
PLS HELP ASAP!! 20 POINTS
Answer:
The construction describe :---
a) The bisector of angle BAC.
how long will it take a dog to walk around the block if the distance is 6 miles in the dog walks 2 mph
Answer:
12 hours
Step-by-step explanation:
Answer:
Step-by-step explanation:
I think 62
A 20 foot ladder leans against a house the base of the ladder is 12 feet from the house. What is the distance from the ground to the top of the ladder?
Answer:
16ft
Step-by-step explanation:
Please see attached diagram depicting the above scenario.
Since the ladder leans against a house, then it forms a right angled triangle while the hypothenus is 20 foot, the distance of the base of the ladder is 12 feet from the house, hence we are required to find the point at which the ladder touches the house I.e height, rep by h.
We will apply Pythagoras theorem to solve the problem.
h^2 = 20^2 - 12^2
h^2 = 400 - 144
h^ 2 = 256
h = √256
h = 16ft
Hence, the distance from the ground to the top of the ladder is 16ft.
Answer:
Answer 16
Step-by-step explanation:
HELP MY RSM CLASS IS TOMORROW
Graph the lines given by the following equations:
y=3-1/2x
To calculate the y position given an x value, multiply the x value by -2 and subtract 3.
Answer:
switch the equation around so it looks like the slope intercept form
y= Mx + b
Step-by-step explanation:
y=3 - 1/2x
y= -1/2x +3
so when x = 0 you know this line is at 3 on the y axis
make a point on the graph at (0,3)
also you know that when x=6 they y is zero.. so
make a point on the graph at (6,0)
now draw a straight line between those two points on your graph :)
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Answer:
wow
Step-by-step explanation:
ILL MARK AS BRAINLESS PLS HELP HURRY WHAT THE AREA
Answer:
72 square inches
Step-by-step explanation:
Area = Length * width
= 12 * 6
= 72 square inches
Answer:
72 sq. in
Step-by-step explanation:
area = length, times, width
12 times 6 = 72
Nick has $3.90 in quarters and dimes, and the total number of coins is 27. How many quarters and how many dimes? Can I have some help with formatting?
Answer:
There are 19 dimes and 8 quarters
Step-by-step explanation: Q= Quarter and D=dimes
q+d= 27; q=.25 and d=.10;
.25q+.10d= $3.90
q= 27-d
.25(27-d)+.10d=3.90 >Distribute .25 through the parenthesis
= 6.75-.25d+.10d=3.90 >Combine like terms
= -.15d=3.90-6.75 >Subtract 6.75 from both sides of the equation
= -.15d=-2.85 >Subtract
= d=19 >Divide both sides by -.15
q= 27-d>>>>> q= 27-19
q= 8
If I multiply my number by 5, I will get 60 more than my number. What is my number?
Answer:
12 cuz 12 multiply by 5 and you get 60
Step-by-step explanation:
I need help i will give you Brainliest if it’s correct.. thank you.
Answer:
5 to the left and 7 up.
Step-by-step explanation:
Count 5 times to the left (starting from any one of the original points), then 7 units up from where ever you ended.
Aimee noticed her plant grew Two-thirds of an inch every week since it sprouted. She created this graph to show its growth.
On a coordinate plane, a graph titled Plant Growth has Weeks Since Sprouting on the x-axis and Height (inches) on the y-axis. Points (3, 2) and (6, 4) are plotted.
Which statement about Aimee’s graph is true?
Answer:do u have the statements
Step-by-step explanation:
Answer:
The answer is A
Step-by-step explanation:
Evaluate each expression for x =2 and Y = 5
Answer:
3: 14
4: 2/25
Step-by-step explanation:
To get to work in the morning, Amanda cycles for 10 miles at the rate of 12 mph. She makes a 10 minutes stop for a cup of coffee, and then rides a bus for 15 minutes. The speed of the bus is 45 mph. At what time will Amanda get to work if she leaves home at 8:30 AM?
Answer:
9:45 AM
Step-by-step explanation:
To get to work in the morning, Amanda cycles for 10 miles at the rate of 12 mph.
Time (hours) = Distance/speed
Hence, the time she spends cycling = 10mile/12 mph
= 0.8333333333 hour
Converting to minutes:
1 hour = 60 minutes
0.8333333333 hour =
0.8333333333 hours × 60 minutes/1 hour
= 50 minutes.
Hence, she spends 50 minutes cycling
She makes a 10 minutes stop for a cup of coffee, and then rides a bus for 15 minutes. The speed of the bus is 45 mph.
The total number of minutes she spends to get to work is calculated as:
(50 + 10 + 15)minutes
= 75 minutes.
It takes Amanda 75 minutes to get to work.
At what time will Amanda get to work if she leaves home at 8:30 AM?
= 8:30AM + 75 minutes
= 8:30 AM + 1 hour 15 minutes
= 9:45 AM
What is the slope of the line that passes through the points (4, 7) and (5,8)? Write
your answer in simplest form.
I need help fast ( there’s no answer choices grade 8)
Answer:
The slope is 1.
Step-by-step explanation:
M = Y2 - Y1
X2 - X2
M = 8 - 7
5 - 3
M = 1
1
M = 1
What is the solution: 3x + 9 = 2x + 5
What is the value of 10/0 . Show & explain why
Answer:
10/0 = 1/0 If the numerator is greater than or equal to the denominator of a fraction, then it is called an improper fraction. In that case, you could convert it into a whole number or mixed number fraction.
Step-by-step explanation:
hope this helps
answer:
10 / 0 =
undefined
step-by-step explanation:
the value of zero is zero. the natural numbers are often defined as beginning with a number like 1.
hope this helped <3 also if wouldn't mind could you pls give me brainliest? (im trying to level up) thanks! :)
Decide whether there is enough information to prove that r is parallel to s. If so, state the theorem you would use.
A. No, there is not enough information.
B. Yes. Alternate Interior Angles Converse
C. Yes. Alternate Exterior Angles Converse
D. Yes.Consecutive Interior Angles Converse
E. Yes. Corresponding Angles Converse
Answer:
B. Yes. Alternate Interior Angles Converse
Step-by-step explanation:
The two angles shown in the figure above are alternate interior angles. Each is located within the two parallel lines intersected by the transversal, and they also lie on opposite side of the transversal.
The marked alternate interior angles are congruent. Therefore, lines r and s are parallel. So, by the Alternate Interior Angles Converse, lines r and s are parallel.
Therefore, the right response to the question is:
"B. Yes. Alternate Interior Angles Converse".
Mega Movies hosted a film premiere on Friday night. They charged $7 for adults and $5 for children. One hundred twenty-
three adults and children attended, and $829 was made in ticket sales. How many children and how many adults went to the
film premiere?
Answer: 235
Step-by-step explanation: Just easy
Answer:
33 kids n 94 kids
Step-by-step explanation:
If the interval (a, “infinity”) describes all values of x for which the graph of f(x) = 4/x^2 - 6x +9 is decreasing, what is the value of a?
Answer:
1
Step-by-step explanation:
x^2 that squared its not included x have invisible 1 thats my answer is 1
Answer: the value of A is 3 :)
Step-by-step explanation:
