Ravi is running against two other candidates for student council president. All of the 750 students in Ravi's school will vote for student council president. How can Ravi generate a representative sample that will help him determine whether he will win the election?
(7th grade 8-1)
Answer:
50 students from each grade
Step-by-step explanation:
If we get the similar amount of people from each and every grade so this would represent the percentage occur from each grade this determine the number of people who vote per grade and represent that how much would the vote for student comes
Also 50 is easily divisible by 750
Therefore the above represent the answer
*what shape is the cross section
(giving brainliest if correct !)
Answer:
Triangle!!
Step-by-step explanation:
If you cut the pyramid in half, it will leave triangles. Hope this helps!
Ciara drives an average of 43.6 miles per week
Work out an estimate for the number of miles Ciara drives in a year.
Answer:
About 2288 miles
Step-by-step explanation:
43.6 rounded is 44. There are 52 weeks in a year. Therefore, 44x52 equals about 2288
Help me with this please
Answer:
(-12, -18)
Step-by-step explanation:
https://www.omnicalculator.com/math/endpoint
Which expression means the same as 25 less than 5y
Answer: 5<y
Step-by-step explanation:25<5y divide both sides by 5 and you get the answer.
can two nonparallel lines can have multiple solutions.
1) always
2) sometimes
3) never
Answer:
3) never
Step-by-step explanation:
Because if both lines are the same then they will have infinite solutions in common.
Answer:
3- Never
Step-by-step explanation:
Kyndal wants to buy a lamp that
originally cost $82, but went on sale for
20% off. The store is having an
additional sale that is 40% off the sale
price. What is the price of the lamp?
Answer:
$39.36
Step-by-step explanation:
Since its 20% off that means we still have a remaining 80% so first multiply 0.8 to the 82
82x0.8= 65.6
Since there is a additional 40% off multiply by 0.4 to get the discount amount
65.6x0.4= 26.24
Subtract the discount from the price
65.6-26.24= 39.36
which angles are adjacent to eachother
Answer:
angle 1 and angle 4 are adjacent each other
Tom buys a hat for $13.00 plus 11% sales taxes.
Lyn buys a hat for $21.00 plus 9% sales taxes.
a) How much do Tom and Lyn pay for the hats? Show your work.
b) Who spent more on taxes?
Answer:
a)
Tom
Tax = (11/100) × 13
Tax = $1.43
Tom paid 13 +1.43 = $14.43
Lyn
Tax = (9/100)× 21
Tax = $1.89
Lyn paid 21 + 1.89 = $22.89
b) Lyn paid more for taxes.
How to solve for shaded area
Answer:
(a) 12.96 ft²
(b) 21.5 in²
Step-by-step explanation:
(a) For the first diagram
Area of the shaded region (A) = Area of Tripezium- area of circle
A = [1/2(a+b)h]-[πr²]............... Equation 1
Where a and b are the parallel side of the tripezium respectively, h = height of the tripezium, r = radius of the circle.
From the diagram,
Given: a = 15 ft, b = 6 ft, h = 12 ft, r = h/2 = 12/2 = 6 ft.
Constant: π = 3.14
Substitute these values into equation 1
A = [12(15+6)/2]-(3.14×6²)
A = 126-113.04
A = 12.96 ft²
(b) For the second diagram,
Area of the shaded region (A') = Area of square- area of circle
A' = (L²)-(πr²)............. Equation 2
Where L = lenght of one side of the square, r = radius of the circle
From the diagram,
Given: L = 2r = (2×5) = 10 in, r = 5 in
Substitute these values into equation 2
A' = (10²)-(3.14×5²)
A' = 100-78.5
A = 21.5 in²
Please help I'm in fourth and I do not understand this at all :((
Answer:
Rico Spent $6.50 on each car.
Step-by-step explanation:If you divided 52 by 8 you get 6.5 in money it would be $6.50.
My answer is reasonable because my estimate ÷ 10 = $6.50
Answer:
The answers are: 6.5$ , divided by, and 5$
Step-by-step explanation:
In order to figure out the price of each toy car, we must divide 52/8 (the total price of the toy cars divided by the number of the cars) which equals to 6.5, meaning that each toy car costs 6.5$, since they all have the same price. We know that this is a reasonable price because say we were to estimate, meaning we'd take a guess without doing any calculations. Let's say we paid 50$ in total, which is easily divided by 10, if we were to round up both numbers, we'd get 5$ each. That's close to the true answer, making it reasonable to take such a guess.
Shane made a diagram of his garden. The shaded part is where he plans to plant herbs. What is the area of the part of the garden that will contain herbs?
Answer:
I dont know the W and the L but to find the area of the shaded part. multiply the width of the shaded part and the length of the shaded part and you will get the area
Tyler's brother works in a shoe store. Tyler's brother earns a commission. The store bought a pair of shoes for $32 and sold them for $78. What percentage was the markup?
Answer:
The markup was 143.75%.
Step-by-step explanation:
In order to find the markup, you have to find the difference between the price the store paid for the pair of shoes and the price they sold them for, then divide that by the price they paid for the shoes and the result has to be multiplied for 100:
((78-32)/32)*100=(46/32)*100=1.4375*100=143.75%
According to this, the answer is that the markup was 143.75%.
Help, ive been stuck on this for 2 hours
2. Find the area of the shaded region to the nearest tenth.
This looks super complicated, but it can actually be solved with the application of a couple of area equations.
Let's establish one fact before we start this question that may have been the reason why this was so confusing for you. No matter what kind of triangle, the area will always be [tex]\frac{1}{2}[/tex] times the length of the base times height.
Alright, with that established, let's start trying to solve for the area.
In this question, we seem to have a triangle with a circle shape taken out of it. We are told to find the area of the shaded area.
The overall equation would be:
[tex]Area_{triangle}[/tex] - [tex]Area_{circle}[/tex]
This makes sense, right? If we find the area of the triangle and subtract the area of the circle within it, it should give us the total shaded area.
Now, let's begin solving for said shaded area:
[tex]Area_{triangle}[/tex] - [tex]Area_{circle}[/tex]
([tex]\frac{1}{2}[/tex] * base * height) - (π*[tex]r^{2}[/tex])
The given base of the triangle is 40 km, the height 27 km, and the circle's diameter is 12. Therefore:
([tex]\frac{1}{2}[/tex] * 40 * 27) - (π * [tex](\frac{12}{2})^{2}[/tex])
(540) - (π * [tex]6^{2}[/tex])
540 - 36π
Use 3.14 as the value for pi:
540 - 36(3.14)
426.96
Round to the nearest tenth:
427.0
Shaded area = 427 ([tex]km^{2}[/tex])
If you have any questions on how I got to the answer, don't be afraid to ask!
- breezyツ
Some of the steps for completing the square to solve
x2 + 5x = 2 are shown.
x2 + 5x = 2
x2 + 5x + (StartFraction 5 Over 2 EndFraction) squared = 2 + (StartFraction 5 Over 2 EndFraction) squared
(x + StartFraction 5 Over 2 EndFraction) squared = StartFraction 33 Over 4 EndFraction
Which are solutions of x2 + 5x = 2?
Given:
The equation is:
[tex]x^2+5x=2[/tex]
To find:
The solution of the given equation by completing the square.
Solution:
We have,
[tex]x^2+5x=2[/tex]
We need to add the square of half of the coefficient of x on both sides.
Adding [tex]\left(\dfrac{5}{2}\right)^2[/tex] on both sides, we get
[tex]x^2+5x+\left(\dfrac{5}{2}\right)^2=2+\left(\dfrac{5}{2}\right)^2[/tex]
[tex]\left(x+\dfrac{5}{2}\right)^2=2+\dfrac{25}{4}[/tex]
[tex]\left(x+\dfrac{5}{2}\right)^2=\dfrac{8+25}{4}[/tex]
[tex]\left(x+\dfrac{5}{2}\right)^2=\dfrac{33}{4}[/tex]
Taking square root on both sides, we get
[tex]x+\dfrac{5}{2}=\pm \sqrt{\dfrac{33}{4}}[/tex]
[tex]x=\pm \dfrac{\sqrt{33}}{2}-\dfrac{5}{2}[/tex]
[tex]x=\dfrac{\pm \sqrt{33}-5}{2}[/tex]
[tex]x=\dfrac{\sqrt{33}-5}{2}[/tex] and [tex]x=\dfrac{-\sqrt{33}-5}{2}[/tex]
Therefore, the solutions of the given equation are [tex]x=\dfrac{\sqrt{33}-5}{2}[/tex] and [tex]x=\dfrac{-\sqrt{33}-5}{2}[/tex].
Answer: d and e
Step-by-step explanation:
edge 2021 :)
What is the measure of angle L?
NO LINKS FOR FILES
Answer:
87
Step-by-step explanation:
first find x
all triangles = 180°
180=32+2x+x+15
combine like terms
180=47+3x
180-47=133
133=3x
133/3=44.334 or 44 1/3
2(44.334)= 88.66 ooor 87 if you round it
8. Fishermen on one boat caught 14 fish in 2.5 hours. At this rate, how many fish will they catch in 10 hours?.
Answer:
56 fish
Step-by-step explanation:
14/2.5=5.6
5.6x10=56
I want its solution and the unit is about algebraic fraction.
Answer:
3x²/(3x - 9y)
This should be the simplest form.
Step-by-step explanation:
Combine the fractions:
(5x² - 2x²)/((6x - 6y) - (3y - 3x))
Combine like terms:
3x²/(6x - 3x - 6y - 3y)
Solve.
3x²/(3x - 9y)
Answer:
9x^2
======
6(x - y)
Step-by-step explanation:
Begin by switching the - to a plus. Switch the x and y in the second denominator.
5x^2 2x^2
===== + ======
6x - 6y 3x - 3y
Pull out the common factors in both denominators. Use the distributive property.
5x^2 2x^2
===== + ======
6(x - y) 3(x - y)
Multiply both the numerator and denominator by 2 on the left had fraction.
5x^2 2*2x^2
===== + ======
6(x - y) 2*3(x - y)
5x^2 4x^2
===== + ======
6(x - y) 6(x - y)
Put both numerators over a common denominator. Notice that the + sign shifts up. It shifts up because both fractions have been changed to a common denominator.
5x^2 + 4x^2
===================
6(x - y)
Combine the two numerators since they are of the same power.
9x^2
======
6(x - y)
Why the circle for parallelogram does not intersect the circle for trapezoid
Answer:
i think that it is B trapeziod and A triangle
Step-by-step explanation:
plz give me brainliest
A cyclist rides his bike at a speed of 27 miles per hour what is the speed in miles per minute? How many miles will the cyclist travel in 2 minutes ? Do not round answer
Answer:
The cyclist can travel 0.9 miles in 2 minutes.
Step-by-step explanation:
1 hour = 60 minutes
Set up a conversion equation:
27 mi/1 hr × 1hr/60 mins
It is easier to see when writing it on paper, but the fractions are set up in a way to cancel the units out until the only units left are miles and minutes
After multiplying the numerators together and then multiplying the denominators together, you should reach the answer:
27 mi/60 mins
The cyclist can travel 27 miles in 60 minutes, but how many miles can he travel in 2 minutes?
Set up an equation:
Variable x = number of miles
27 mi/60 mins = x/2 mins
Cross multiply
27 × 2 = 60 × x
54 = 60x
Divide both sides by 60
0.9 = x
A scatter plot is shown how many outliners does the graph show
Answer:
True
Step-by-step explanation:
A bookstore carries 70 magazines. 80% of the magazines are women's magazines. How many women's magazines
does the bookstore carry?
Answer:
56
Step-by-step explanation:
If there are 70 total magazines, and 80% are womens, then you just multiply 70 * .80 = .56
8c^2+7c how do i solve this
Answer: look at the picture
Step-by-step explanation: Hope this help :D
Simplify: LaTeX: (4a + 6b)^2.
Answer:
4 (2a+3b)^2
Step-by-step explanation:
(4a+6b)^2 = (4a+6b) * (4a+6b) = 16a^2 +48ab + 36b^2
take 4 common factor
4 (4a^2 + 12ab + 9b^2) = 4 (2a+3b)^2
A theater charges $5.25 per ticket. The theater has already sold 40 tickets. Write and solve an inequality that represents how many more tickets the theater needs to sell to earn at least $400.
NO LINKS PLEASE :]
*in the image above x=23 cm. find the surface area of the figure
(help pls)
Answer:
[tex]3174cm^{2}[/tex]
Step-by-step explanation:
Each square has an area of [tex]529cm^{2}[/tex]
So we multiply that by the number of squares which is 6.
Calculate the interest earned on a $4,500
saving account that earns 2.5% simple interest over
3 years
Answer:
I = $337.50
Step-by-step explanation:
I = prt
I = 4500(.025)(3)
I = 337.50
The interest earned is $337.50.
What is Simple Interest?The interest on a loan or principal amount can be easily calculated using simple interest. Simple interest is a notion that is employed across a wide range of industries, including banking, finance, automobiles, and more. When you pay back a loan, the monthly interest is deducted first, and any remaining funds are applied to the principle.
Simple Interest = Principal x Interest Rate x Time/ 100
Given:
Principal= 4500
Rate= 2.5%
Time= 3 years
Using Simple Interest
SI = ( P x R xT)/100
SI = (4500 x 2.5 x 3) /100
SI = 33750/100
SI = $337.50
Hence, the interest earned is $337.50
Learn more about simple interest here:
https://brainly.com/question/25845758
#SPJ6
I need help anyone can help me? I’ll mark ya braninly
Answer:
You are more likely to grab a red marble. You are less likely to grab a green marble.
Step-by-step explanation:
6/16 is greater than 5/16. The bigger the number, the higher the probability.
Have a great day!
what is 5 over 10 as a decimal
Answer:
0.50
Step-by-step explanation:
5/10=1/2
100/2=50
50*1=50
50 equals to 0.50 as a decimal
Please answer!!!!!!!
Answer:
the correct answer is C
4x=52
52 divided in 4 parts is 13, so each ticket is 13 dollars
