This graph shows a proportional relationship between the number of cello players and the number of violin players in a music group. What is the constant of proportionality?
Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.
What is the mean number of minutes spent on the phone?
Explanation:
The data from the stem-and-leaf plot is:
10,
24,25,26,
30,30,32,33,
40,45,46
Add up those values
10+24+25+26+30+30+32+33+40+45+46 = 341
Then divide over n = 11 which is the sample size.
341/11 = 31 is the arithmetic mean.
Answer:
341/11 = 31 is the arithmetic mean.
Step-by-step explanation:
Please Help!! Grade 7 Math!! K12!!
Answer:
See below
Step-by-step explanation:
To find the total cost we need to know whats fixed, and what's variable (changing)
Fixed: $14 handbag
Variable: $0.50 / earring
Set up your polynomial, rule of thumb, all variables get multiplied by x
Total cost = x($0.50/earring) + $14 handbag
Substitute 0,5,10, and 15 for x and see which one matches the answer choices
Set up your polynomial, rule of thumb, all variables get multiplied by x
Total cost = x($0.50/earring) + $14 handbag
Substitute 0,5,10, and 15 for x and see which one matches the answer choices
Step-by-step explanation:
HELP! A student starts a walk at (−6, 10). If the student walks 4 miles north, south, east, or west, which of the following could be their location at the end of the walk?
A. (10, −6), (6, −6), (−2, 14), (−10, 14)
B. (4, 10), (−14, 10), (−6, −2), (−6, 6)
C. (−6, 4), (−6, 6), (−2, 10), (4, 10)
D. (−10, 10), (−2, 10), (−6, 14), (−6, 6)
Solve 2(x + 7) = 28
A. x= 10.5
B. x= 14
C. x=21
D. x=7
Petra is making a batch of extra large donuts by stamping circles in dough using a pastry stamp with a diameter of 5 inches. For the donut hole, she stamps out a circle using a pastry stamp that has a diameter of 2 inches.
How many square inches of dough are left in the donut after the hole has been removed?
Step 1 - Find the radius of each circle
Step 2 - Find the area of the large circle
Step 3 - Find the area of the small circle
Step 4 - Area of large circle minus area of small circle
Area = \(\pi\)²
Describe how you solved this problem using complete sentences and include all relevant formulas and calculations. Use 3.14 for \(\pi\)
Answer:
16.49
Step-by-step explanation:
First we are going to find the area of the larger circle. You don't need to find the radius, you can just use the diameter(the radius is 2.5). 3.14 times 2.5 squared=19.63. Next, the radius of the smaller circle is 1. So, 3.14 ^1 squared=3.14 19.63 - 3.14= 16.49
The circumference of a circular park is approximately 18 feet. What is the approximate area inside the circular park?
Answer:
25.685 square feet.
Step-by-step explanation:
Circumference = 2 * π * radius
From this, we can derive the formula for the radius:
radius = Circumference / (2 * π)
Let's substitute the value of the circumference and calculate the approximate radius:
radius = 18 / (2 * π)
radius ≈ 18 / (2 * 3.14159)
radius ≈ 2.865 feet
Now that we have the approximate radius, we can calculate the area:
Area ≈ π * radius²
Area ≈ 3.14159 * (2.865)²
Area ≈ 3.14159 * 8.193225
Area ≈ 25.685 square feet
Therefore, the approximate area inside the circular park is approximately 25.685 square feet.
Round to the place of the underlined digit. 340,790 The rounded value of the whole number from the underlined digit is 4th grade queston. The underlined number is 3
Answer:300,000
Step-by-step explanation: if the 4 was a 5 or higher then the answer would’ve been 400,00 but since the number next to the underlined digit is 4 then it goes to 300,00. (4 or below leave it alone 5 or above give it a shove)
PLEASE HELP ME
Which expression correctly calculates the perimeter of the shape below?
A. 400
B. 100 + 100pi
C. 200 + 50pi
D. 200 + 100pi
don't know
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
please help me!
What is the radius and diameter of the following circle? 13\,\text{cm}13cm Radius ==equals \text{cm}cmstart text, c, m, end text Diameter ==equals \text{cm}cm
Answer:
Radius = 6.5cm
Diameter = 13cm
Step-by-step explanation:
The diameter is the length of one side of a circle to the other. It's already given in the diagram as 13cm.
The radius is half of the diameter. 13 divided by 2 is 6.5cm.
I need the answer I only solved half of this help pls f (n)=n/2 3n +1 if n is even if n is odd
Answer:
3
Step-by-step explanation:
Compare the perimeter and area of the original figure to the enlarged figure using proportions.
A small rectangle has a length of 2, and a width of 1. A large rectangle has a variable length of b, and width of 2. StartFraction enlarged side (2) over Original side (1) = StartFraction Enlarged perimeter (4 + 2 b) over Original perimeter (6) EndFraction. (StartFraction enlarged side (2) over Original side (1) EndFraction) squared = StartFraction Enlarged area (2 b) over Original area (2) EndFraction
Which statements describe true relationships? Check all that apply.
The enlarged area is 4 times the original area, which is the square of the scale factor.
The scale factor is One-half.
The enlarged perimeter is 2 times the original perimeter, which is the scale factor.
The perimeter is proportional to the scale factor and the area is proportional to the square of the scale factor.
The enlarged area and perimeter are equal.
plz help me I will mark brainliest and give thanks :D but only if you can it's fine if you don't know the answer.
Answer:
A,C,D
Step-by-step explanation:
I just got it right on edge2021
plz mark brainliest
A chemist prepares two acid solutions.
Solution 1
3 parts sulfuric acid to 7 parts water
Solution 2
4 parts sulfuric acid to 9 parts water
a. Use a ratio table to determine which solution is more acidic.
Solution 1 Solution 2
Water Sulfuric Acid
Water
Sulfuric Acid
7
9
21
18
42
45
63
63
Question 2
Solution
has the greater concentration.
Question 3
b. Use a graph to determine which solution is more acidic.
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Both graphs begin at $($ Response area, Response area $)$ . The graph for solution Response area is steeper, so it has Response area concentration of acid.
Answer:
Check Description for answer
Step-by-step explanation
do it urself
Answer:
A) solution 2 is more acidic than solution 1
Step-by-step explanation:
A chemist prepares two acid solutions:
Solution 1: 3 parts sulfuric acid to 7 parts water
Ratio of sulphur to water: 3/7 (3:7)
Solution 2: 4 parts sulfuric acid to 9 parts water
Ratio of sulphur to water: 4/9 (4:9)
___________________________________________________
Part A: (using ratios to determine which solution is more acidic)
First we make same denominator, since the denominators are 9 and 7, we have to find the lcm (lowest common multiple) they both have with is 63. To do that, we must multiply the denominators with either 7 or 9.
Solution 1: Numerator (3) multiplied by 9 and then denominator (7) multiplied by 9. This makes out fraction/ratio 27/63
Solution 2: Numerator (4) multiplied by 7 and then denominator (9) multiplied by 7. This makes out fraction/ratio 28/63
Since 28/63 (or just 28) is a larger quantity than 27/63 (or just 27) this means solution 2 is more acidic than solution 1.
Mathematical Line (Not sure what you would call this lol): 28 > 27
Part B: (Let 'y' amount of sulfuric acid mix with 'x' amount of water)
Equation of solution 1: y = 3/7x
Equation of solution 2: y = 4/9x
Please find attachment for graph.
Part C: Don't have a graph, sorry! (part a. method is more preferred to find more acidic because it gives the actual acidic amount.)
Malik made the number pattern 1, 3, 7, 15 following a rule. The rule is to double the number and add one. Which number would come after 15?
Answer:
16 is the answer
Step-by-step explanation:
Help pls. Also wdym this is to short yk why so long >:/
Answer:
Y= mx + b
so Y = 1/3x + 2
just substitute
What is the area of this figure?
Answer:
16+110=126 m²
Hope it helps :)
Answer:
Area of 1 st rectangle, length = 10m and breath = 15m
So using formula , rectangle = length × breadth
= 10 m × 15 m
=150^{2}
again,
Area of 2 st rectangle, length = 6m and breath = 4m
So using formula , rectangle = length × breadth
= 6 m × 4 m
= 24m^{2}
Now ,
Final area of whole box = 1^{st} area - 2^{nd} area
= 150m^{2} - 24m^{2}
= 126 m^{2} is answer
I need help with this question, I'm not very good at math and all help is appreciated!
Answer:
A
Step-by-step explanation:
We can solve for H by isolating it on one side of the equation, as follows:
J/H - I/H = G
Taking H as the common denominator:
(J - I)/H = G
Multiplying both sides by H:
J - I = GH
Adding I to both sides:
J = GH + I
Dividing both sides by G:
H = (J - I)/G
So the answer is
(A)
H = (J - I)/G.
Answer: A
Step-by-step explanation:
\(\frac{J}{H} = G + \frac{I}{H}\) >Since you are solving for H bring I/H to the other side
by subtracting I/H from both sides
\(\frac{J}{H}- \frac{I}{H} = G\) >There is a common denominator so you can
combine the fractions
\(\frac{J-I}{H} = G\) >Multiply both sides by H or cross multiply whichever
way your mind things about how to get H on top
\(J-I = G(H)\) >Divide both sides by G
\(\frac{J-I}{G} = H\) >Answer is A
\(\sqrt{\frac{p}{2}-2 } = \sqrt{p-8}\)
\(\boldsymbol{\sqrt{\dfrac{p}{2}-2}=\sqrt{p-8}}\)
Cancel the square root on both sides.
\(\boldsymbol{\sf{\dfrac{p}{-2}-2=\sqrt{p-8} }}\)Multiply both sides by 2.
\(\boldsymbol{\sf{p-4=2p-16 }}\)Subtract p from both sides.
\(\boldsymbol{\sf{-4=2p-16-p }}\)Simplify
\(\boldsymbol{\sf{-4=p-16 }}\)Add 16 to both sides.
\(\boldsymbol{\sf{-4+16=p }}\)Simplify
\(\boldsymbol{\sf{12=p}}\)Swap sides.
\(\boldsymbol{\sf{p=12 \ \ \to \ \ \ Answer}}\)↓
Verification\(\boldsymbol{\sqrt{\dfrac{p}{2}-2}=\sqrt{p-8} \ \ \to \ \ \ Exercise \ normal.}\)
Let p=12.
\(\boldsymbol{\sqrt{\dfrac{12}{2}-2}=\sqrt{12-8}}\)Simplify 12/6 to 6.
\(\boldsymbol{\sqrt{6-4}=\sqrt{12-8} }\)Simplify 6-2 to 4.
\(\boldsymbol{\sqrt{4}=\sqrt{12-8} }\)Since 2×2=4, the square root of 4 is 2.
\(\boldsymbol{2=\sqrt{12-8} }\)Simplify 12-8 to 4.
\(\boldsymbol{2=\sqrt{4} }\)Since 2×2=4, the square root of 4 is 2.
\(\boldsymbol{2=2}\)Checked ✅\(\huge \red{\boxed{\green{\boxed{\boldsymbol{\sf{\purple{Pisces04}}}}}}}\)
Use number properties to simplify the following expression.
-5 + (5 + 3)
show each step in simplifying the expression and explain which property you used in each step.
Answer:
3
Step-by-step explanation:
the answer is 3, because you always have to add the numbers in parantheses first. and 5+3= 8 (commutive of addition). u bring down the -5 and you have -5 + 8 = 3.
-5+(5+3)
-5+8
3
Can someone help me with this question!!
Answer:
8
Step-by-step explanation:
area = bh/2
32.4 yd² = 8.1 yd × s / 2
s = 8 yd
NEED HELP ASAP. ASSISTANCE IS GREATLY APPRECIATED.
What is the volume, in cubic inches, of a cone that has a radius of 9 inches and a height of 16 inches? Use 3.14 for π (pi), and round to the nearest hundredth.
Answer:
The volume (V) of a cone can be calculated using the formula: V = (1/3)πr^2h, where r is the radius and h is the height.
Substituting the given values, we get:
V = (1/3) x 3.14 x 9^2 x 16
Calculating this expression gives us:
V = 1810.08 cubic inches
Rounding to the nearest hundredth gives us:
V ≈ 1810.08 cubic inches (rounded to two decimal places)
Therefore, the volume of the cone is approximately 1810.08 cubic inches.
Answer:
1363.04
Step-by-step explanation:
V = (1/3) * 3.14 * 9^2 * 16
Simplifying:
V ≈ 1363.04 cubic inches
What’s your least favorite bank and provide 5 reasons.
Answer:
Chase. Visiting the bank is inconvenient. Scheduling time out of a busy day, driving in traffic, finding parking, waiting in line – generally speaking, these are your average person’s least favorite activities. Unfortunately, these are the sacrifices you will make when visiting your local bank.
Step-by-step explanation:
7 ones 6 tenths = _____________ tenths
PLS HELP!!!
Answer:
7.6?
Step-by-step explanation:
Answer:
6.7
Step-by-step explanation:
I need help with these math problems, if you could help me out it would be great thanks.
Answer:
I can help!!!
Step-by-step explanation:
Answer: 33: -3 + 8 = 5 (5 • 2 = 2.5)
34: 12 -| -7 |
Step-by-step explanation:
Pleaseeee Helpppp Meeeee this one!
Answer:
Its the first one, fourth one, sixth one and the last one.
Step-by-step explanation:
Grouping is when you have to do math inside the bracket or parentheses. it can't be the second one.
Answer: I am not 100% sure but I think it is
-8(-5)(10)(-2), -3(2)+(-10)÷2, 10÷{5[-5(3.2)]+-7.8, 8÷2(-4+10)
Step-by-step explanation:
Grouping symbols are:
parentheses, brackets, braces, radicals, and fraction lines. Show where a group starts and ends, and help to establish the order.
I apologize for this taking forever to type, it was all the brackets and etc.
Which equation has the solution x = 3? Select each correct answer. Responses 5x−7=1 5 x minus 7 equals 1 9−3x=0 9 minus 3 x equals 0 2x + 4 = 10 2, x, + 4 = 10 3x + 1 = 9 3, x, + 1 = 9 9x−1=4 9 over x end fraction minus 1 equals 4 x3+5=6 x over 3 end fraction plus 5 equals 6 (dont answer)
Answer:
Step-by-step explanat
none of them
At the store you want to buy a bunch of 3d printed Christmas gifts for your family. Each large tree costs $4.50 , and each small tree costs $2.25, If you buy 4 large trees, and can spend a total of $50. Write and solve an inequality for number of small trees (s) you can buy
We know that each large tree costs $4.50, and each small tree costs $2.25. If you buy 4 large trees, that means you will spend 4 * $4.50 = $<<4*4.5=18>>18 on large trees.
If you can spend a total of $50, then you have $50 - $18 = $<<50-18=32>>32 to spend on small trees.
The total cost of the small trees will be s * $2.25, where s is the number of small trees you buy.
To find the maximum number of small trees you can buy, we can set this expression equal to $32 and solve for s:
s * $2.25 = $32
s = $32 / $2.25
s = 14.22
Since you can't buy a fraction of a tree, the maximum number of small trees you can buy is 14.
Answer:
If each large tree costs 4.50 and you need to buy 4, then 4 x 4.50 = $18.00 leaving you with $32.00. With these 32 dollars left, you can now buy 14 small trees, still being left with a remainder of 0.50$.
Step-by-step explanation:
the ratio of the number of oranges to apples to bananas is 8:5:2. if there are 120 fruits in total, how many bananas are there
Answer:
Step-by-step explanation:
To find the number of bananas, we need to determine the proportion of bananas in the total number of fruits based on the given ratio.
Let's assume that the ratio of oranges, apples, and bananas can be represented by 8x, 5x, and 2x, respectively, where x is a common multiplier.
The sum of the parts in the ratio is 8x + 5x + 2x = 15x.
We know that the total number of fruits is 120. Therefore, we can set up the following equation:
15x = 120
To solve for x, we divide both sides of the equation by 15:
x = 120 / 15
x = 8
Now that we know the value of x, we can find the number of bananas by multiplying it by the corresponding part of the ratio:
Number of bananas = 2x = 2 * 8 = 16
So, there are 16 bananas in total.
We can add all the parts to the ratio and get 15. Out of 15 parts, 2 are bananas. Now we can calculate how many fruits are in one part. One fifteenth of 120 is 8, so there are 8 fruits in one part. 2 parts are bananas, so multiplying 8 with 2 gives us our answer, 16.
I am literally struggling lol
Answer:
The blank space is 2.
Answer:
2
Step-by-step explanation:
9*22 = 198
(9*20) + (9*2)
= 180 + 18
= 198
Identify all the Interior Angles.
Answer:
3,4,6,5
Step-by-step explanation:
They are inside, with the transversal line cutting through the two parallel lines.
Answer:
3, 4, 5, 6
Step-by-step explanation:
Interior angles are angles inside parallel lines. A and b are parallel lines and angles 3, 4, 5, and 6 are inside the two lines. This means that they are interior angles.
Hope This Helps :)