Answer:
777:121212 is peas in her hair to peas left in her hair.
Answer:
12:7
Step-by-step explanation:
i had it on khan academy
write a division equation to represent the repeated subtraction 32 take away 8 is 24 24 take away 8 is16 16 take away 8 is 8/8 take away 8 is 0
The repeated subtraction of 8 from 32 until reaching 0 can be represented by the division equation 32 ÷ 8 = 4, showing the number of times 8 is subtracted from 32.
Explanation:The student is performing repeated subtraction of the same number, which can also be represented by a division equation. The repeated subtraction mentioned:
32 take away 8 is 2424 take away 8 is 1616 take away 8 is 88 take away 8 is 0Shows that 32 is being subtracted by 8 until it reaches 0, and this process happens four times. Thus, we can convert this series of subtractions into a division equation: 32 ÷ 8 = 4. This equation means that you can subtract 8 from 32 four times before reaching zero, which is equivalent to dividing 32 by 8.
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George has a box of chocolates. There are 12 pieces of chocolate with nuts and 20 pieces of chocolate without nuts in the box. What is the ratio of pieces of chocolate without nuts to pieces of chocolate with nuts?
A.
15:1
B.
1:15
C.
3:5
D.
5:3
Answer:
Step-by-step explanation:
Good evening ,
________________
the ratio of pieces of chocolate without nuts to pieces of chocolate with nuts:
20:12 = (20:4) : (12:4) = 5:3.
Then the correct answer is D.
____________________________
:)
To find the ratio of chocolates without nuts to chocolates with nuts, divide the quantities of each. With 20 chocolates without nuts and 12 with nuts, the simplified ratio is 5:3, corresponding to answer D.
The question asks us to find the ratio of pieces of chocolate without nuts to pieces of chocolate with nuts. George has 12 pieces of chocolate with nuts and 20 pieces of chocolate without nuts.
To determine the ratio, we divide the number of chocolates without nuts by the number of chocolates with nuts:
Ratio = Number of chocolates without nuts / Number of chocolates with nutsRatio = 20 / 12Ratio = 5 / 3 (after simplifying)Therefore, the correct answer is D. 5:3. This is the ratio of pieces of chocolate without nuts to pieces of chocolate with nuts.
What is the measure of ∠W, rounded to the nearest degree?
19°
32°
56°
71°
71°
Step-by-step explanation:This is an isosceles triangle because it has two sides with lengths, hence the angles opposite the equal sides are also equal, that is ∠U = ∠V.
So we can say that:
∠U = ∠V = α
∠W = β
Since the internal angles of a triangle add up to 180 degrees, then:
α + α + β = 180
2α + β = 180
β = 180 - 2α
Using the law of sine:
[tex]\frac{35}{sin\beta} =\frac{30}{sin\alpha} \\ \\ \frac{35}{sin(180 - 2\alpha)} =\frac{30}{sin\alpha} \\ \\ \\ From \ Properties: \\ \\ sin(180-2\alpha)=sin(180)cos2\alpha-sin2\alpha cos(180) \\ \\ = -sin2\alpha(-1)=sin2\alpha \\ \\ Also: \\ \\ sin2\alpha=2sin\alpha cos\alpha[/tex]
Therefore:
[tex]\frac{35}{2sin\alpha cos\alpha} =\frac{30}{sin\alpha} \\ \\ \therefore \frac{35}{60}=cos\alpha \\ \\ \alpha=cos^{-1}(\frac{7}{12})=54.31^{\circ}[/tex]
But we want to know ∠W = β, therefore:
[tex]\beta = 180 - 2\alpha \\ \\ \beta =180-2(54.31)=71.37^{\circ}[/tex]
And rounded to the nearest degree:
∠W = 71°
A member of a book club wishes to purchase two books from a selection of eight books recommended for a certain month. In how many ways can she choose them?
Answer:
She can chose 2 books from 8 books in 28 different way.
Step-by-step explanation:
In the given scenario the member has to chose 2 books from a group of 8 books. The order of choosing books does not matter. For example if the books are A,B,C,D,E,F,G and H, and the member picks books A and B or books B and A, she is picking up the same books. This means order of selection does not matter here, so this is a problem of combinations.
We have to form combination of 8 books taken 2 at a time i.e. 8C2
The general formula of combination is:
[tex]nCr=\frac{n!}{r!(n-r)!}[/tex]
Using the values of n=8 and r=2, we get:
[tex]8C2=\frac{8!}{2!(8-2)!}=28[/tex]
This means, she can chose 2 books from 8 books in 28 different ways.
Answer:
28 was right on acellus
Step-by-step explanation:
Solve the problem below.
57°
123°
114°
66°
Answer:
66
Step-by-step explanation:
Leon is helping his baby sister Daphne eat her dinner. There are 121212 peas left in Daphne's bowl and 777 peas squished in her hair
Answer:
Step-by-step explanation:
12:7 I'm pretty sure thats right and if its not then try 7:12
Factor x^2y–y+xy^2. I NEED THIS ASAP
Answer:
[tex]x^{2}y -y+xy^{2}\\y(x^{2}-1+xy)\\[/tex]
Step-by-step explanation:
take out the y
Solve 430-200 using the arrow way.
Answer:
190
Step-by-step explanation:
430->230 subtract 200
430->230->200 subtract 200 then 30
430->230->200->190 subtract 200 then 30 then 10
To solve 430-200 using the arrow way, start with 430, draw an arrow to subtract 200, and write the result, 230, at the tail of the arrow.
Explanation:How to Solve 430-200 Using the Arrow WayTo find the solution to 430-200 using the arrow way, you can follow these steps:
Start by writing the number 430.Draw an arrow downwards to subtract 200 from 430.Calculate the value after this subtraction, which gives you 230, and write this number at the tail of the arrow.This visual representation using arrows helps illustrate the process of subtraction. The final answer, or the head of the arrow, is therefore 230.
Will mark BRAINLIEST!!!
Answer should be C
hope this helped you.
Answer:
[tex]8a^3b^3c^4(\sqrt[3]{bc} )[/tex] C. should be your answer
Step-by-step explanation:
MAX POINTS AND BRAINLIEST !!
Write a quadratic equation that can be solved by factoring. Solve your equation and show and explain all your work.
please dont just copy from something you found online cause i'll report u :l
Answer:
x^2+2x+2
Step-by-step explanation:
(x+1)(x+1) or (x+1)^2
x = -1
Answer:
Step-by-step explanation:
x²+8x+15 is the quadratic equation and it can be solved by factoring. By factoring the answer will be (x+3) (x+5) and if it is expanded, the answer will be x²+8x+15. First, you should factorize the equation. Then, find the two numbers that if they are added together the sum will 8 and if they are multiplied the product is 15.
Hope this helps!
What is 4x4x8 in volume
Answer:
128
Step-by-step explanation:
Do the multiplication:
4 * 4 * 8 = 128
How do mathematical graphs help us better understand our world
Answer:
because they help us better analyze data
Step-by-step explanation:
we can see a lot of data on one small thing such as a graph, so we can easily graph data from many years on one graph
Graphs in mathematics help us visually represent equations and display data, allowing us to understand patterns, trends, and relationships between variables.
Explanation:Graphs are an important tool in mathematics as they help us better understand our world by visually representing equations and displaying data. Graphs can show the relationship between different variables, such as in a line graph where one variable is plotted on the horizontal axis and another on the vertical axis. They can also represent data using bar graphs or pie graphs, which help us compare and interpret numerical information.
For example, if we want to analyze the temperature changes throughout a year, we can plot the temperature on the vertical axis and the months on the horizontal axis. By connecting the data points, we can see patterns and trends, such as variations in temperature during different seasons.
In addition, graphs allow us to make predictions and draw conclusions based on the data presented. By analyzing the shape and slope of a graph, we can determine the rate of change, identify maximum and minimum values, and make predictions about future outcomes.
Evaluate 12x−3y when x=−1/4 and y=3.
Answer:
-12
Step-by-step explanation:
12x−3y
Let x = -1/4 and y=3
12(-1/4) -3(3)
Multiply
-12/4 -9
Divide
-3-9
Add
-12
Answer:
-12
Step-by-step explanation:
12x-3y...
It is straightforward, but you plug in -1/4 and 3 in the equation.
12(-1/4)-3(3)
-3-9
so you get
-12
471.9 is 65% of what amount
471.9=65% × x
671.9/65 = x
x= 10.336923077
Check! Proof!
10.336923077×65%
=671.9
Answers
10.336923077
Leo deposited $2494.05 in an account that earned 2.5% interest compounded weekly for 13 years. After 13 years, how much had Leo earned in interest?
Leo earned approximately $992.08 in interest after 13 years.
Explanation:Compound interest is calculated using the formula:
A = P(1 + r/n)^(nt)
Where:
A = Total future amountP = Principal amountr = Annual interest rate (as a decimal)n = Number of times the interest is compounded per yeart = Number of yearsIn this case, Leo deposited $2494.05 with an interest rate of 2.5% compounded weekly for 13 years. Plugging the values into the formula:
A = 2494.05(1 + 0.025/52)^(52*13)
A = 2494.05(1.00048077)^(676)
A ≈ $3486.13
To find the interest earned, subtract the principal amount from the total future amount:
Interest = A - P
Interest ≈ $3486.13 - $2494.05
Interest ≈ $992.08
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add 5 to p then divide 7 by the result
Answer:
p should equal -4
Step-by-step explanation:
9(6-2v)=-12(v-11) What is the value of v
answer: v = -13
step by step explanation:
Answer:
v = - 13
Step-by-step explanation:
Distribute parenthesis on both sides of the equation
54 - 18v = - 12v + 132 ( add 12v to both sides )
54 - 6v = 132 ( subtract 54 from both sides )
- 6v = 78 ( divide both sides by - 6 )
v = - 13
What is the solution
Answer:
Step-by-step explanation:
Which situation is best modeled by the equation 9+=16 9 + x = 16 ?
Answer:
D.) You pay $9 for a burger and some amount for dessert for a total of $16.
Bottom Right
if jenkins had 254 to spend,then bought 9 t-shirts and had 29 remaining,how much was each shirt? assuming that each shirt costs the same
Answer:
each shirt costs $25
Step-by-step explanation:
we can make an equation using x as the cost of each shirt. since 254 was the total, they will=254 together , and since we have 9 shirts, its 9x. we can use this info to create the equation 9x+29=254. we subtract 29 on each side to get 9x=225. we then divide 9 on both sides to get x=25. so each shirt costs $25
Brainliest plzzz
Find the surface area of the right square pyramid. Round your answer to the nearest hundredth. A 117.66 yd^2 B. 123.21 yd^2 C. 145.75 yd^2 D. 182.04 yd ^2
Answer: OPTION C
Step-by-step explanation:
Use the following formula:
[tex]SA=\frac{pl}{2}+B[/tex]
Where p is the perimeter of the base, l is the slant height and B is the area of the base.
The perimeter is:
[tex]p=4*s=4*5.3yd=21.2yd[/tex]
Where s is the side lenght
The slant height is given:
[tex]l=11.1yd[/tex]
The area of the base is:
[tex]B=s^2=(5.3yd)^2=28.09yd^2[/tex]
Where s is the side lenght
Substitute values. Then, the result is:
[tex]SA=\frac{(21.2yd)(11.1yd)}{2}+28.09yd^2)=145.75yd^2[/tex]
Answer:
The correct answer option is C. 145.75 yd^2.
Step-by-step explanation:
We are given a diagram of a right square pyramid with a slant height 11.1 yd, and base edge length 5.3 yd.
We know that the surface area of a right square pyramid is given by:
[tex]\frac{PI}{2} +B[/tex]
where P = perimeter of the base, I = slant height and B = base area.
Perimeter of base = [tex]4 \times 5.3[/tex] = 21.2 yd^2
Base Area = [tex]5.3^3[/tex] = 28.09 yd^2
Surface area of right square pyramid = [tex]\frac{21.2 \times 11.1 }{2} + 28.09[/tex] = 145.75 yd^2
what value of x makes the equation below true?
Answer:
B
Step-by-step explanation:
7 + x = 84
Subtract 7 from both sides.
x = 77
HELP PLEASEEE PLEASEEEEEEE HELP ME!
Answer:
A. 3 Inches
Step-by-step explanation:
To find the radius of the circle, we need to use the Pythagorean Theorem.
a²+b²=c²
a = r inches
b = AD or 4 inches
Now to get the value of c, we need to consider the measurement of the line AD. The sum of line AD and line DC will be the value of the hypotenuse.
c = r + 2 inches
Now that we have our variables, let's plug them in.
a² + b² = c²
r²+ 4² = (r + 2)²
Now we need to use the FOIL method for r + 2.
r² + 16 = (r + 2)(r + 2)
r² + 16= r² + 2r + 2r + 4
r² + 16 = r² + 4r + 4
Now we can remove r² by subtracting both sides by r², leaving us with:
16 = 4r + 4
Now we subtract 4 from both sides.
4r = 12
Now we divide both sides by 4.
r = 3 inches
Answer:
A. 3 inches
Step-by-step explanation:
Triangle ABC is a right angled triangle
Therefore;
Using the Pythagoras theorem then;
AB² + BC² = AC²
but BC = CD = radius
Hence;
4² + r² = (r+2)²
16 + r² = r² + 4r +4
16 - 4 = 4r
12 = 4r
r = 3
Therefore; the radius of the circle is 3 inches
Patel's class voted on their favorite color. Patel plans to make a circle graph to display the results. which statements are true about the circle graph Patel can create? Check all that apply.
last option is
The same number of students voted for red as for indigo
Answer:
Step-by-step explanation:
1) Percentage of blue = [tex]\frac{6}{36} *100\\=16.67%\\=17%[/tex]
True
2) Organe has the least number and hence true
3) Yes. 36 students represent 100% of the data set
4) violet has 12 i.e. 12/36 =1/3 of the total. Hence true.
5) There are 7 colours and hence 7 segments. Hence false.
Answer:
1, 2, 3, 4, and 6
Step-by-step explanation:
Right on E D G E N U I T Y unit test.
Find a•b. a=<2,4>, b= <2,5>
Answer:
a • b = 24Step-by-step explanation:
[tex]<a,\ b>\circ<c,\ d>=ac+bd\\\\a=<2,\ 4>,\ b=<2,\ 5>\\\\a\circ b=<2,\ 4>\circ<2,\ 5>=(2)(2)+(4)(5)=4+20=24[/tex]
christina plotted the shape of her garden on graph paper. she estimates that she will get about 15 carrots from each square unit. she plans to use the entire garden for carrots. about how many carrots can she expect to grow? explain.
I wish I could help but I can’t bc I don’t know what it is sorry
Answer:
300 carrots
Step-by-step explanation:
Count the square units inside the composite figure. The area of the garden is 20 sq. units. Each square unit will grow about 15 carrots. Therefore, Christina will multiply 20 by 15 totaling to 300 carrots.
Find the surface area of this triangular prism
Answer:
To find the area of a triangle, multiply the base by the height, and then divide by 2. The division by 2 comes from the fact that a parallelogram can be divided into 2 triangles. For example, in the diagram to the left, the area of each triangle is equal to one-half the area of the parallelogram.
this will show u i searched it and wrote half in my words
Answer:
315 in^2
Step-by-step explanation:
Triangles
Area of the two triangular faces.
Area = 1/2 * h * b
h = 7 in
b = 11 in
Area = 1/2 * 7 * 11
Area = 1/2 * 77
Area = 38.5
But there are 2 faces
Area = 38.5 * 2
Area = 77 in^2
Area Left Face
Area left face = height * width
Area left face = 14 * 8
Area left face = 112 in^2
Area Right face
Area Right face = w*h
w = 9
h = 14
Area = w*h
Area right face = 126 in^2
Total Area
Total Area = 126 + 112 + 77
Total Area = 315 in^2
A triangle with measures of x∘, 2x∘, and 2x∘ is a(n) triangle.
X+2x+2x=180
5x=180
X=36
2x=72
2x=72
Y=f(x) =2x find f(x) when x=1
Answer:
y = 2
Step-by-step explanation:
Plug 1 into x
2(1) = 2
The table shows the number of minutes spent doing different exercises. The mean spent exercising was 18.2 minutes. How many minutes were spent doing sit ups? (URGENT HELP) (ANSWER 4/11/19)
Answer:
15
Step-by-step explanation:
Call the unknown time x.
The mean is the sum of the numbers divided by the number of numbers.
There are 5 numbers.
(8 + 10 + 38 + x + 20)/5 = 18.2
(x + 76)/5 = 18.2
x + 76 = 91
x = 15
Answer:
Step-by-step explanation:
Add all the scores you do know
8 + 10 + 38 + 20 = 76
Now put in an ex for the situps.
76 + x
There are 5 subjects
(76 + x) /5 = 18.2
The average was 18.2
Multiply both sides by 5
5*(76 + x ) / 5 = 18.2 * 5
Cancel the left combine the right.
76 + x = 91
Subtract 76 from both sides
76 - 76 + x = 91 - 76
x = 15