Answer:
9 notebooks would cost $6.75
Step-by-step explanation:
How I solved this problem was by taking the data and writing it out first.
During one trip, he got 2 boxes of pencils and 8 notebooks for $11.00
During the second trip, he got 3 boxes of pencils and 5 notebooks for $11.25
This led me to believe that the boxes were definitely more expensive than the notebooks, as there were many notebooks bought during the first trip, yet that trip was cheaper than the second. So, by the process of elimination, I started off the value of the notebooks to be $0.50, and the boxes of pencils to be $3.00, and I continued to experiment with values until I found two values that would work in both scenarios, the values being $2.50 for a box of pencils, and $0.75 for a notebook. (I know there's likely an easier way of doing this, but I haven't done a problem like this in a while, and this method works just fine. It's just a bit more time consuming.)
1st Case: 2(2.50) + 8(0.75) = 11
2 times 2.50 equals 5, and 8 times 0.75 equals 6. 5 added to 6 gives you a sum of 11.
2nd Case: 3(2.50) + 5(0.75) = 11.25
3 times 2.50 equals 7.50, and 5 times 0.75 equals 3.75. 7.50 added to 3.75 gives you a sum of 11.25
Now that it is known how much each notebook costs ($0.75), you would take that value and multiply it by 9, since you're wanting to know how many 9 would cost, and this gives you a product of $6.75.
I hope this helps :)
Answer:
it would cost £6.75
Step-by-step explanation:
Solve the following equation:
12(b+2)+3b=−1
Enter your answer as a fraction.
Answer: -5/3
Step-by-step explanation:
12(b + 2) + 3b = -1
12b + 24 + 3b = -1
15b + 24 = -1
15b = -1-24
b = -25/15 = -5/3
The solution to the equation 12(b+2) + 3b = -1 is b = -5/3.
What is the solution to the given equation?Given the equation in the question:
12( b + 2 ) + 3b = -1
To solve the equation 12( b + 2 ) + 3b = -1, first apply the distributive property.
Distribute the 12 across the terms inside the parentheses:
12( b + 2 ) + 3b = -1
12×b + 12×2 + 3b = -1
Simplifying, we get:
12b + 24 + 3b = -1
Collect and combine the like terms on the left side of the equation:
12b + 3b + 24 = -1
15b + 24 = -1
Subtract 24 from both sides of the equation:
15b + 24 - 24 = -1 - 24
15b = -1 - 24
15b = -25
Divide both sides by 15:
b = -25/15
Simplify
b = -5/3
Therefore, the value of b is -5/3.
Learn more about equations here: brainly.com/question/14686792
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I need help with this please ASAP!!!
Answer:
11.3
Step-by-step explanation:
i used the theorem of Pythagoras
Answer:
11.3
Step-by-step explanation:
In a right angled triangle: the square of the hypotenuse is equal to
the sum of the squares of the other two sides.
[tex]8^{2} + 8^{2} = x^{2}[/tex] (x is the hypotenuse)
64 + 64 = [tex]x^{2}[/tex]
[tex]x^{2}[/tex] = 128
=> x = [tex]\sqrt{128}[/tex] = 11.3137085 = 11.3
There are 10 shirts in a drawer. Eight of the shirts have short sleeves. Two shirts have long sleeves. Estimate the probability that you get a short-sleeved shirt if you select one out without looking.
Answer:
4/5
Step-by-step explanation:
8/10=4/5
Which of the following represents the additive inverse of h?
Answer:
B or -h
Step-by-step explanation:
i took the quiz
What is the area of a rhombus if one diagonal is 6 centimeters and the other diagonal is 8 centimeters?
Answer:
24 cm²
Step-by-step explanation:
The area (A) is calculated as
A = [tex]\frac{1}{2}[/tex] product of the diagonals, that is
A = 0.5 × 6 × 8 = 24 cm²
What is the slope of the line represented by y=3/4x-1 ? A. –1 B. -3/4 C. 3/4 D. 1
Answer:
3/4
Step-by-step explanation:
In the above equation the y-intercept is -1 and the slope of the equation is 3/4
Answer:
The answer is C or 3/4.
Step-by-step explanation:
This equation is in point-slope form or Y= mx+b. The variable m represents slope. So, just look for the number that stands in place of m. Hope this helps! Please mark Brainliest! :)
Choose the appropriate plan letter for each question
Plan____ has the lowest range
Plan____ has the highest y intercept
Plan___ is the plane that is the best value
c is the lowest range
a has the highest y incerpt
d is the best value
What is the solution to Negative 1 minus 7? A number line going from negative 10 to positive 10. –8 –6 6 8
Answer:
-8
Step-by-step explanation:
plug it into a calculator. its taking 7 away from an already negative number.
Answer:
-8 correct me if im wrong
Step-by-step explanation:
12. Use the graph of f(x) to find the solutions to the equation f(x)=0 (1 point)
two solutions: r= -10,2
two solutions: x = 10.-2
one solution: x= 10
no solutions
will give brainliest plz helppp!!!!
Answer:
A. True
B. False
C. False
D. False
Step-by-step explanation:
will the answer to 3 × 6 be even or odd?
help please!
-x - (-15) + -3.5x + 15
Answer: -4.5x + 30
Step-by-step explanation:
Simplify.
-x- (-15) - 3.5x +15
Remove parentheses.
-x + 15 -3.5x + 15
Collect like terms.
(−x−3.5x)+(15+15)
Simplify.
-4.5x + 30
Students in grade 7 and 8 were asked which food they liked best the results are shown in the table below?
Answer:
55% if the students like hotdods
Answer:
55%
Step-by-step explanation:
Which term can be added to the list so that the greatest common factor of the three terms is 12h3? 36h3, 12h6, __________
Answer:
36h6
Step-by-step explanation:
Answer:
48h^5
Step-by-step explanation:
If p stands for "this meal is delicious
Answer:
I don't understand.......
What is the rank of Brazil. (Percentile wise)
Answer:
I dont know it this is the answer u r looking for but out of everything on the list, brazil has 2.2222222222222 percent
Answer:
3.9%
Step-by-step explanation:
add up all the Olympic medals =485
Brazil = 19
to get the rank of Brazil 19/ 485 =0.039175..... multiply by 100 to get %
Math question down below
Answer:
6 and 3/4
Step-by-step explanation:
add all of the ones before 2 1/2
Math question down below
Answer:
c.
Step-by-step explanation:
10.98/2=5.49
16.19/3=5.40
21.15/4=5.29
26.85/5=5.37
A spinner with 4 colors is spun for a total of 50 trials. Yellow was selected 10 times. What is the experimental probability of the spinner landing on yellow?
A. 2/25
B. 1/5
C. 1/4
D. 2/5
Answer:
b. 1/5
Step-by-step explanation:
10/50 = 1/5
Use the graph or table to write a linear function that relates to y to x.
Answer:
the answer to the question is D
is it true that energy never moves
Answer:
False
Step-by-step explanation:
Energy is transferred from one object to another when a reaction takes place. Energy comes in many forms and can be transferred from one object to another as heat, light, or motion, to name a few.
elijah's credit card statement showed these items: Last Balance Payments Finance Rate New Charges $152.58 $45.00 1.5% $213.40 What is Elijah's new balance? $320.98 $322.59 $323.27 $397.51
Answer:
Option A,$320.98 is correct
Step-by-step explanation:
The new balance on Elijah's credit is the sum of the last balance plus new charges minus payments made.
last balance as shown by the statement was $152.58
new charges were $213.40
payment made by Elijah was $45
new balance=$152.58+$213.40-$45=$320.98
The rationale for this is that the new charges on the card account add to previous balance owed by Elijah while the payment of $45 made reduces overall balance.
Answer:
Other answer is incorrect. Elijah's new balance would be $322.59
Your welcome.
Calculate:|a|−|b|+|c|, if a=−8; b=−5; c=1
Answer:
The answer is 4.
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
|x| just means positive x so the equation turns into 8-5+1
8-5 = 3
3+1 = 4
I will mark brainliest! The question is the image attached, please help!
Answer:
x=20 and y=128.Option 2
Step-by-step explanation:
Since,the angles are vertically opposite,they are equal(property)
Therefore,
(3x-8)=(2x+12)
3x-8=2x+12
3x-2x=12+8
x=20,
Now,
Since,the angles are formed in a straight line,their sum is equal to 180(property)
Therefore,
y+(2x+12)=180
y+2×20=180-12
y=168-40
y=128
Therefore,x=20 and y=128
option 2 would be your answer because it explains the missing part where y is.
DVD players are going out of fashion in the modern era. If 400,000 DVD players were sold this year and sales are declining at a rate of 31% per year, how many will be sold 3 years from now?
130,000
131,404
128,000
399,876
Answer:
c
Step-by-step explanation:
Answer:
399,876
Step-by-step explanation:
So, 400,000 DVD sales with a 31% decline means in the first year following, there will be a decline of 124,000 DVDs sold. So we need to take 400,000-124,000 which equals a starting point for your two is 276,000 dvds. Then, add 123,876, which gives you 399,876.
Sorry if its blurry im on my laptop
Answer:
Step-by-step explanation:
1 in=2 ft
Bedroom 1
scale
17.5 in ×12.5in
actual
(17.5×2)×(12.5×2)
or
35 ft×25 ft
Living Room
scale
17.5 in×17.5 in
actual
35 ft×35 ft
Bathroom 1
scale
12.5 in×12.5 in
actual
25 ft×25 ft
Kitchen
scale
17.5 in ×12.5 in
actual
35 ft×35 ft
Bedroom2
scale
12.5 in ×12.5 in
actual
25 ft×25 ft
Entryway
scale
12.5 in×12.5 in
actual
25 ft×25 ft
Bathroom 2
scale
12.5 in×5 in
actual
25 ft×10 ft
Complete the following ratios:
Answer:
700/821, 429/821, 700/429
Step-by-step explanation:
SOH, CAH, TOA
Sin= opp/hyp
Cos= adj/hyp
Tan= opp/adj
Show the Euler-Descartes formula holds for the Great Pyramid of Cheops
Answer:
For the great pyramid of Cheops, V + F = E + 2 gives 5 + 5 = 8 + 2 which proves Euler-Descartes formula
Step-by-step explanation:
The great pyramid of Cheops is a square based pyramid therefore we have;
V + F = E + 2
Where:
V = Vertices
F = Faces
E = Edges
Hence, we have for a square pyramid;
V = 5 vertices (One at the peak, and four at the base edges)
F = 5 faces (The four lateral or side faces and the base)
E = 8 edges ( The four lateral edges and the four base edges)
Hence;
5 + 5 = 8 + 2 which proves Euler-Descartes formula.
Find the slope of this line: y=2x+7
Answer:
The slope is 2
Step-by-step explanation:
Y = mx+b y = mx+b is the shape of the slope-intercept where m is the slope.
Answer:
Slope = 2
Step-by-step explanation:
y=mx+b, in which m is the slope. Whatever number is paired with x is the slope.
what is the volume of the square pyramid ?
A. 2530 cubic feet
B. 10,240 cubic feet
C. 11,605.3 cubic feet
D. 30,720 cubic feet
(50 points)
Answer:
D
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
The volume of a square pyramid is [tex]\frac{a^2h}{3}[/tex], where a is the base edge and h is the height. Substituting in these values we get 10240.
