Answer:
We are given x represent the number of pencils purchased, and let y represent the total cost.
We also given 18 pencils for $4.50.
Therefore, cost of each pencil = 4.50/18 = $0.25
Total cost (y) = cost of each pencil × number of pencils.
Therefore, equation would be
y = 0.25x.
In order to graph it, let us find some points for graph using table.
Plugging x=4, we get
y = 0.25(4) = 1.
Plugging x=8, we get
y = 0.25(8) = 2.
We got two coordinates, (4,1) and (8,2).
Plotting those points on the graph and joining the points.
We can see that graph represents the proportional relationship.
Step-by-step explanation:
Number the steps for balancing equations:
Kijuan needs to buy eggs to make breakfast for the next week. Each carton of eggs holds 12 eggs. Which of the following equations represents the relationship between the number of eggs that Kijuan will , y, and the number of cartons he buys, x ?
Answer:
[tex]\int\limits^a_b {x} \, dx[/tex]
Step-by-step explanation:
The number of pizzas is in a proportional relationship to the weight of the shredded cheese toppings. When shredded, a 50-lb block of cheese is enough to make 150 large pizzas. Find the constant of proportionality. Use pencil and paper. Explain how you can use a constant of proportionality to find how much cheese is on one slice of pizza if there are 8 slices per pizza.
Answer:
3
Step-by-step explanation:
There will be 1/24 cheese on 1 slice of pizza and the constant of proportionality is 1/3
What is proportion?The size, number, or amount of one thing or group as compared to the size, number, or amount of another.
Given that, a 50-lb block of cheese is enough to make 150 large pizzas.
For 150 pizzas there are 50 lb cheese, so for 1 pizza = 50/150 = 1/3
Therefore, the constant of proportionality is 1/3
There are 8 slices in one pizza, therefore cheese for each slice = 1/3*1/8 = 1/24
Hence, There will be 1/24 cheese on 1 slice of pizza and the constant of proportionality is 1/3
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Mr. Smith earns $375 per week as a salary plus he earns a 4% commission. If his total sales were $4,200, how much will he earn this week?
Answer:
$4,575
Step-by-step explanation:
If _______ angles are ______ then lines are parallel
For every 242424 meals Momoka prepared for customers last night, she prepared 222 meals for employees. Momoka prepared 156156156 meals. How many meals did Momoka prepare for customers and for employees last night?
9514 1404 393
Answer:
13 meals for employees143 meals for customersStep-by-step explanation:
2/24 = 1/12 of the 156 meals were for employees. That is ...
156/12 = 13 meals . . . . for employees
The remaining 156 -13 = 143 meals were for customers.
What does the value of the mean absolute deviation tell you about the spread of the data?
Answer:
The Mean absolute deviation of any data set is best for explain how spread out the data values are compared to each other and the mean. This value is found be finding the difference of all data points to the mean of the data set, and then finding the average of those, by adding them all up and dividing by the total number of data points there are. If the mean absolute deviation is larger, then this means that there is more variability in the data set, and it is in fact very spread out. Finding the average of the distances of data points from the mean can be very helpful in determining conclusions about data sets.
Step-by-step explanation:
Change wording
The Mean absolute deviation of any data set gives us an idea about the variability in a dataset.
What is mean absolute deviation?The mean absolute deviation of a dataset is the average distance between each data point and the mean.
The Mean absolute deviation of any data set is best to explain how spread out the data values are compared to each other and the mean.
This value is found to be finding the difference of all data points to the mean of the data set, and then finding the average of those, by adding them all up and dividing by the total number of data points there are.
If the mean absolute deviation is larger, then this means that there is more variability in the data set, and it is in fact very spread out.
Finding the average of the distances of data points from the mean can be very helpful in determining conclusions about data sets.
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What is the value of the expression of -(-4)
Answer:
4
Step-by-step explanation:
two negative signs are equal to a positive sign
How do I find the measurement indicated in these problems.
Answer:
13. In parallelograms, adjacent angles are always supplementary. This means that angles that are right next to each other will always add up to 180.
So for this one, the two given angles add up to 180, creating this equation:
7x - 4 + 9x - 8 = 180
this can be simplified to x = 12
substitute x into <D to get <D = 100
since we know that <D and <A are supplementary, subtract m<D from 180 to get <A = 80
14. In parallelograms, opposite angles are always congruent, this means that in this problem <C and <A are equal to each other
so we can create an equation: 9x + 13 = 11x - 3
solve this to get x = 8
substitute 8 into <C's equation to get <C = 85
Since <C and <B are adjacent, subtract <C from 180 to get <B = 95
15. <J and <L are opposite to each other, so we know they are congruent
this means we can create an equation: 2 + 24x = 26x - 2
solve this to get x = 2
plug this into the equation for <J
you get <J = 50
16. In parallelograms, lines that are opposite to each other are always congruent. So this means that lines JM and KL are congruent
this means that we can create an equation of 2x - 15 = x - 4
solve this to get x = 11
plug in x to the equation for KL
you get KL = 7
5/9+7/9 in simplest form
Answer:
1 1/3 one and one third
Step-by-step explanation:
1 1/3
Step-by-step explanation:
This is because 5/9 + 7/9 = 12/9. 12 is a value greater than 9, so you can take one value of 9 out of 12 and get 1 3/9. 1 3/9 can be simplified to 1 1/3 by dividing the denominator and numerator by 3.
Leaving you with 1 1/3
Can someone help me out on this?
Answer:
19/20
Step-by-step explanation:
1/5=0.20
hope that makes sense
what is 4613203.125 rounded as a whole number
Answer:
4613203
Step-by-step explanation:
To round as a whole number, take the decimals and see what the first number of the decimal is. if the number is 5 or more, its 1 more number. if its lower than 5, its not a whole number.
Solve the system.
y=6x-1
y=3x-4
The solution is _____
.
Explain your choice of method.
Answer:
(-1, -7)
Step-by-step explanation:
Solve by graphing.
Graph the two equations together.
The lines intercept at (-1, -7).
Hope this helps.
Answer:
Solution: (-1, -7)
Step-by-step explanation:
6x - 1 = 3x - 4
Subtract 3x from both sides;
3x - 1 = -4
Add 1 to both sides;
3x = -3
Divide both sides by 3;
x = -1
Substitute x into the equation;
y = 3(-1) - 4
y = -3 - 4
y = -7
What is JK? In the picture above
Answer:
pretty sure it's also 2.9 since the other two sides are the same
Step-by-step explanation:
Answer:
if you are looking for an angle it is 90 if you are looking for the length of the side it is 2.9
Step-by-step explanation:
Can anyone please help me on this!? I’ll give brainliest!
Answer
Step-by-step explanation:
4. -64
Multiplicative inverse
Answer:
the answer I got is -23, please let me know if I am wrong.
Duueee Tommorow Hellppp plzzz
Answer:
18
Step-by-step explanation:
3 *6= 18
or 18/100
or 9/50
Which rectangles similar to the one below?
Answer:
D
Step-by-step explanation:
because half of 8 and 14 is 4and 7
The line graphed below has a slope of ____.
3
1/3
-3
Answer:
-3
Step-by-step explanation:
Hope this helps!
Pls help I really need it
Answer:
x = 20
p =54
y= 54
Step-by-step explanation:
2x-4 = 96-3x
5x = 100
x = 20
2x-4 = 40-4 = 36
(180 - (36 x 2))/2
(180-72)/2
108/2
p = y =54
these are two different questions
ANSWER THESE FAST PLZ
Answer:
1. -3
3. -11
5. 2
7. 5
9. 13
11. -13
13. 11
15. 10
!!IMPORTANT!! 10 POINTS!!
Francis is playing an online puzzle game. He has 25 points and earns 5 points for puzzle he solves correctly. He will advance to the next round if his score is over 75 points. Which inequality can Francis use to find how many more puzzles he must solve to advance to the next round?
Answer:
x>10
or
5x+25>75
Step-by-step explanation:
Answer:
25 + 5x > 75
Step-by-step explanation:
Let x be the number of puzzles Francis needs to solve to advance to the next round.
25 points + (No. of rounds × Points per round) is more than 75 points.
25 points: 25
(No. of rounds × Points per round): 5x
is more than: >
75 points: 75
25 points + (No. of rounds × Points per round) is more than 75 points:
25 + 5x > 75
8 True or False: The substitution method is a method of solving systems of equations by adding equations together in such a way that the variables are set aside, one by one.
Answer: I personally think it's true but I am not for sure
Step-by-step explanation:
The two-way table below describes the practice habits of members of the school band and choir.
Practice Habits of School Musicians
Less than
30 Minutes per Day
At Least
30 Minutes per Day
Band Students
38
26
Choir Students
18
12
Which statement best describes the relationship between the two variables?
There is an association because the relative frequencies by row are different.
There is an association because the relative frequencies by row are similar.
There is no association because the relative frequencies by row are different.
There is no association because the relative frequencies by row are similar.
Answer:
the answer is c
Step-by-step explanation:
Answer:
the answer is c
Step-by-step explanation:
hope this helps :)
Find the slope. Explain what the slope and y-intercept means for the situation. Be sure to use your labels when explaining the real-life situation.
Answer:
Slope: 25, y-intercept: 0
Step-by-step explanation:
Take any two points. I'm going to take (3, 75) and (4, 100).
How to find slope: change in y/change in x
Change in y --> 100 - 75 = 25
Change in x --> 4 - 3 = 1
25 ÷ 1 = 25.
Slope is 25
Since 3 · 25 = 75, the y-intercept is 0.
The y-intercept stands for how much money someone gets for working 0 days, so they get $0 for working/whatever situation they're in for 0 days.
Two angles are supplementary if their measures add up to 180°. If one of two supplementary angles is (3x + 7)° while the other is (5x - 11), then x =
A.25
B.21
C.24
D.20
E.23
Answer:
E. 23
Step-by-step
3x + 7 + 5x - 11 = 180
* add 3x and 5x
8x + 7 - 11 = 180
* do 7-11
8x - 4 = 180
* add 4 to both sides to cancel it out
8x = 184
* divide 8 on both sides to get x alone
x = 23
14. A pair of cars, 280 miles apart, begin at the
same time to run toward each other. If car A from
city A runs at a rate that is 10 mph faster than car
B from city B, and if they meet 2 hours later, how
far is the place they meet away from city A?
Please help
Answer:
Step-by-step explanation:
hi malak
What value of x is in the solution set of 2x. 3 > 11 - 5x?
a. -3
b. 0
c. 2
d. 4
Answer:
i think option d
Answer:
The answer is D : 4.
Step-by-step explanation:
=2x-3>11-5x
=2x-3+5x>11
=7x-3>11
=7x>11+3
=7x>14
=7x/7>14/7
=x>2
By simplifying the problem, you can see that "x" must be greater than 2. Therefore, eliminating all other possible answers that are shown, but 4.
I answered the same questions with the same exact wording and explanation so please don't report any answers that are the same as this one, they are all mine and written by me.
A 5-column table with 6 rows titled Number of cans collected. Column 1 has entries 7, 8, 10, 11, 11, 14. Column 2 has entries 16, 17, 18, 18, 24, 25. Column 3 has entries 28, 29, 30, 30, 35, 37. Column 4 has entries 38, 40, 40, 41, 41, 41. Column 5 has entries 42, 42, 42, 42, 42, 43.
Students from Grover Middle School are recycling aluminum cans. The table shows the total number of cans brought in each school day for a period of six weeks. They collected a total of 862 cans. Use the drop-down menus to define the terms.
Mean:
Median:
Mode:
Range:
Answer:
mean: 28.73
median: 30
Mode: 42
Range: 36
Step-by-step explanation:
Took the test on edge2020
Answer:
Students from Grover Middle School are recycling aluminum cans. The table shows the total number of cans brought in each school day for a period of six weeks. They collected a total of 862 cans. Use the drop-down menus to define the terms.
Mean:
✔ 28.73
Median:
✔ 30
Mode:
✔ 42
Range:
✔ 36
Step-by-step explanation:
Correct answers