Answer:
the second, fourth and fifth
Shailes class had 2 students out of 5 students choose Fortnite as their favorite video game. What was the
part percent
percentage of students who like Fortnite?
whole 100
O 2%
O 10%
40%
O 100%
Answer:
40%
Step-by-step explanation: 2 divided by 5 is 0.4 so that is 40%
Answer:
40%
Step-by-step explanation:
those two people who like fortnite are the 1 percent of bacteria lysol doesn't kill. fortnite is lame and bad
Marisa spent $8 on a movie ticket. Then she spent $5 on
popcorn and one half of what was left on a drink. She
had $2 left.
How much did she have initially?
4.32 + b = 19
b = ?
Quick guys my grade are dropping I need help!
Answer:
14.68
Step-by-step explanation:
4.32 + b = 19
Solve for b.
_____________
To solve, we need to get b by itself.
4.32 + b = 19
Subtract 4.32 from both sides :
b = 14.68
factoring trinomials 6n^2-56n-40
Answer:
Step-by-step explanation:
Use the Quadratic Formula to find the roots, i.e., the values of n for which 6n²-56n-40 = 0.
Answer:
2(n - 10)(3n + 2)
Step-by-step explanation:
Given
6n² - 56n - 40 ← factor out 2 from each term
= 2(3n² - 28n - 20) ← factor the quadratic
Consider the factors of the product of the n² term and the constant term which sum to give the coefficient of the n- term.
product = 3 × - 20 = - 60 and sum = - 28
The factors are - 30 and + 2
Use these factors to split the n- term
3n² - 30n + 2n - 20 ( factor the first/second and third/fourth terms )
= 3n(n - 10) + 2(n - 10) ← factor out (n - 10) from each term
= (n - 10)(3n + 2)
Thus
6n² - 56n - 40 = 2(n - 10)(3n + 2)
The Capulet's are building a horse stall for their horse, Shaggy. The length, y, of the stall must be more than twice the width, x. However, they only have enough material to build 50 feet of fencing. Write the system of equations or inequalities used to solve it. Identify one option that would meet the criteria.
Answer:
y = 18
x = 7
Step-by-step explanation:
Since the Capulet's only have a total of 50 feet of fencing then that will also be the maximum perimeter of the fence and cannot exceed that value. Therefore, using the information provided we can conclude the following
y > 2x
y + y + x + x <= 50ft
2x + 2x + x + x <= 50ft
Now that we have these equations we can first solve for x and then solve for y
2x + 2x + x + x <= 50ft
6x <= 50ft ... divide by 6
x <= 8.33
y > 2 * 8.33
y > 16.66
Therefore, one possible value would be
A rancher is going to fence three sides of a corral next to a river. He needs to maximize the corral area using 240 feet of fencing. The quadratic equation A(x)=x(240−2x) gives the area of the corral, A, for the length, x, of the corral along the river. Find the length of the corral along the river that will give the maximum area, and then find the maximum area of the corral.
Answer:
A. 60 feet B. 7200 ft²
Step-by-step explanation:
A. Find the length of the corral along the river that will give the maximum area
To find the length of the corral that will give the maximum area, we differentiate A with respect to x and equate it to zero.
So, dA(x)/dx = d[x(240 - 2x)]/dx
= (240 - 2x)dx/dx + xd(240 -2x)/dx
= 240 - 2x -2x
= 240 - 4x
So, dA(x)/dx = 0
240 - 4x = 0
4x = 240
x = 240/4
x = 60 feet
B. Find the maximum area of the corral
The maximum area at x = 60 feet is
A(x)=x(240−2x)
A(60)=60(240−2(60))
A(60) = 60(240 - 120)
A(60) = 60(120)
A(60) = 7200 ft²
Answer:
maximum: 7200 sq ft. 60 ft along the river
Step-by-step explanation:
The maximum area of 7,200 square feet is reached when the corral has a length of 60 feet along the river.
If p = 15, what is p ÷ 5 - 2?
Answer:
1
Step-by-step explanation:
p ÷ 5 - 2, If p = 15
15/5 - 2
(15/5=3)
3 - 2 = 1
1 is the answer
Matt has 3 different colored T-shirts and 2 different colored shorts
How many outfits can Matt make with these clothes?
Answer:
Step-by-step explanation:
3 x 2 = 6
Matt can make 6 different outfits with these clothes.
What are the Combinations?Combinations are the procedures used in mathematics to pick k things from n different items without replacement.
The following formula computes the combinations of k items from n:
(n, k) = n! / k!×(n-k)!
Given that Matt has 3 different colored T-shirts and 2 different colored shorts.
Matt can make 3 x 2 = 6 different outfits with these clothes.
This is because for each T-shirt color, he has 2 options for shorts, and he has 3 different T-shirt colors.
So for each T-shirt color, the number of outfit combinations is 2. And since he has 3 T-shirt colors, the total number of outfits is 3 x 2 = 6.
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given f(x)=50+30x, find f(1), f(2), and f(3)
Please help
The numbers inside the parentheses are the x values. Replace x with each number and solve.
F(1) = 50 + 30(1)= 50+ 30 = 80
F(2) = 50 + 30(2)= 50 + 60 = 110
F(3) =!50 + 30(3)= 50 + 90 =140
The value of the function f(x) = 50 + 30x at x = 1, 2, and 3 will be 80, 110, and 140.
What is a function?A statement, principle, or policy that creates the link between two variables is known as a function. Functions are found all across mathematics and are required for the creation of complex relationships.
The function is given below.
f(x) = 50 + 30x
The value of the function at x = 1, will be
f(1) = 50 + 30 × 1
f(1) = 50 + 30
f(1) = 80
The value of the function at x = 2, will be
f(2) = 50 + 30 × 2
f(2) = 50 + 60
f(2) = 110
The value of the function at x = 3, will be
f(3) = 50 + 30 × 3
f(3) = 50 + 90
f(3) = 140
Thus, the value of the function f(x) = 50 + 30x at x = 1, 2, and 3 will be 80, 110, and 140.
More about the function link is given below.
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What is the average rate of change over the interval 1
A chess club plans to sell water bottles to raise $425
they already have $175
if they sell water bottles for $8 each, at least how many bottles do they need to sell in order raise enough money
which inequality represents the situation
Answer:
31
Step-by-step explanation:
I rounded it down thats it
The equality for this equation is
175 + 8b >/= 425
B = number of bottles required to sell. Now, I don't want to give you the answer but I can assist you in easily finding it. Subtract 175 from both sides
8b >/= 250
Now, divide at from both sides and remove the greater than mark which should mean that in the end it should look like it says
**edited** I mean divide 8 from both sides.
b = ?
That is the number of bottles they must sell, if it is a decimal, round it up because there is no such thing as a decimal number for selling water bottles.
Find side x, giving your answer to 1 decimal place.
810
7 cm
40°
Х
Answer:
10.8
Step-by-step explanation:
By sine rule:
[tex] \frac{x}{ \sin 81 \degree} = \frac{7}{ \sin 40 \degree} \\ \\ x = \frac{7 \sin 81 \degree}{ \sin 40 \degree} \\ \\ x = \frac{7 \times0.9876883406 }{0.6427876097} \\ \\ x = \frac{6.91381838}{0.6427876097} \\ \\ x = 10.755992 \\ \\ x \approx 10.8[/tex]
Using the tangent formula we can write as,
Tan 40° = 7 / x
Tan 40 = 0.84
The value of x is 8.3 cm
What are trigonometric identities?There are three commonly used trigonometric identities.
Sin x = 1/ cosec x
Cos x = 1/ sec x
Tan x = 1/ cot x or sin x / cos x
Cot x = cos x / sin x
We have,
A triangle with angle 40° angle 81° and 7 cm on on side of the triangle.
Using the tangent formula we can write as,
Tan 40° = 7 / x _____(1)
Now,
Tan 40 = 0.84
From (1) we get,
0.84 = 7 / x
x = 7 / 0.84
x = 8.3 cm
Thus,
The value of x is 8.3 cm
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The selling price of a skateboard is 147 $. The store has 75% markup policy. What uis the selling price of the skateboard
Answer:
Selling Price = $147
Mark Up = 75%
------------------
The selling price of the skateboard is $84.
In the triangle xyz, zv is both the median and the altitude, if xy=9x+12 and xz=11x+2 and yz=4x+20 find the perimeter
Answer:
The answer is "2(12x+17)"
Step-by-step explanation:
The formula of the perimeter:
[tex]\to \bold{P=xy+yz+xz}[/tex]
[tex]=9x+12+4x+20+11x+2\\\\=9x+4x+11x+2+20+12\\\\=24x+34\\\\ =2(12x+17)[/tex]
How do you write 9/10 as a percentage
#To make a fraction into percentage, the easy way is to times the fraction with 100
The percentage of 9/109/10 × 100 = 90
#and so, the percentage of 9/10 is 90%
Answer : 90%Question 2 of 10
Use the matrix tool to solve the system of equations. Choose the correct
ordered pair.
4x + 5y = 2
5x - 3y = 21
Answer:
(3 , -2)
Step-by-step explanation:
4 5 2 5 -3 21 1 -8 19 -> * -4
5 -3 21 -> switch 4 5 2 -> * -1 -> 4 5 2 ->
1 -8 19 -> 1 0 3 1 0 3
0 37 -74 -> *8/37 0 37 -74 -> * 1/37 -> 0 1 -2
solve this problem plss
-2 x < 12
Answer:
x<14
Step-by-step explanation:
How to solve the equation: -2(-3x-4)=14
Answer:
1
Step-by-step explanation:
-2(-3x-4)=14
6x + 8 = 14
6x= 14-8
6x=6
x=1
What expressions are equivalent to y4 - 625?
Answer:
option D
Step-by-step explanation:
a² - b² = (a + b) (a - b)
625 = 5 * 5 * 5 * 5 = 5⁴
y⁴ - 625 = y⁴ - 5⁴
= (y²)² - (5²)² {a = y² ; b = 5²}
= (y² + 5²)(y² - 5²)
= (y² + 25)(y² - 5²)
= (y² + 25)(y + 5)(y - 5)
does anyone know how to do this? will give brainiest
Answer:
x = 22, and im rlly sry, i dont know how to solve for y...im sry...
Step-by-step explanation:
180 - 55 = 125 degrees
so
6x - 7 = 125
+7 +7
6x = 132
divide by 6
x = 22
The Children's play area at the Community pool holds a total of 3185 gallons of water it takes 2.5 hours to fill the pool with 1625 gallons of water how many gallons of water does the pool have after 1 hour find the unit rate
Answer:
650 gallons after 1 hour
Unit rate:650gallons/hour
Step-by-step explanation:
We are given that
Total capacity of pool=3185 gallon
In 2.5 hours water pool fill=1625 gallon
We have to find how many gallons of water fill in the pool after 1 hour and unit rate.
Using unitary method
1625 gallons of water takes time to fill the pool=2.5 hours
1 gallon of water takes time to fill pool=[tex]\frac{2.5}{1625}[/tex]hours
3185 gallon of water takes time to fill the pool=[tex]\frac{2.5}{1625}\times 3185[/tex] hours
3185 gallon of water takes time to fill the pool=4.9 hours
1 hours , water fill in pool =[tex]\frac{1625}{2.5}[/tex]gallons
1 hours , water fill in pool=650 gallons
Unit rate: How many volumes of water fill in 1 hour.
Unit rate=[tex]\frac{1625}{2.5}=650gallons/hour[/tex]
1 poi
1. Evaluate 24 + -5y, when y = 2. Work the problem out on your paper and
put only the number in the blank. *
Your ancier
Answer:
14
Step-by-step explanation:
substitute 2 for y
multiply
subtract
yay
plz help I don't have a lot of time left
Answer:
the 2nd colonie of bacteria grows faster
Step-by-step explanation:
Answer:
a. Bacteria B grows at a faster rate because it has a higher number than Bacteria A. By solving the problem of both Bacteria A and Bacteria B, you would see why Bacteria B grows at a faster rate.
b. Bacteria B grows faster by 35000
Step-by-step explanation:
68 less than 55 times a number is equal to the number(x). Please can someone tell me the value of the number(x)?
Answer:
x = 34/27 or 1 7/27
Step-by-step explanation:
55x - 68 = x
-68 = -54x
x = 68/54
if x = 7, then 7 = x is an example of which property
Answer/Step-by-step explanation:
What do you mean by property?
I will guess for now, but if it is not right I will update it.
It would be the associative property since you are flipping the equation around.
Hope this helps :)
-0.8(q - 0.5)= - 2.6 what is a
Answer:
3.75
Step-by-step explanation:
-0.8(q-0.5)=-2.6
-0.8q+0.4=-2.6
-0.8q=-2.6-0.4
-0.8q=-3
0.8q=3
q=3/0.8
q=3.75
Your grandparents started a savings account with $10,000 the day you were born. It earns 5% annually compounded monthly. How much will you have when you turn 18?
Answer: You will have $24,551.84 when you turn 18.
Step-by-step explanation:
Formula for accumulated amount earned in t years:
[tex]A=P(1+\dfrac{r}{12})^{12t}[/tex], where P = principal value, r = rate of interest
Given: P= $10000, r = 5% t = 18 years.
Substitute all values in formula, we get
[tex]A=10000(1+\dfrac{0.05}{12})^{12\times18}\\\\=10000(1.004167)^{216}\\\\=10000(2.45518445623)\approx24551.84[/tex]
Hence, you will have $24,551.84 when you turn 18.
A new car is purchased for 22300 dollars. The value of the car depreciates at 7.5% per year. To the nearest year, how long will it be until the value of the car is 7700 dollars?
Answer:
13, i think.
Step-by-step explanation:
use the equation: p( 1 - 7.5/100)^r
p= original amount
r = years
sub in numbers
22300 ( 1- 7.5/100)^r
just sub in different numbers for r till you get closest to your answer
After 13 years the value of the car would be $7700
What is an exponential decay?"It describes the decrease in an amount by a consistent percentage rate over a period of time."
What is exponential decay formula?"f(t) = a(1 - r)^t , where t is time, a is the initial value and r is the rate"
For given example,
initial value of the car (a) = 22300
The value of the car depreciates at 7.5% per year.
So, the rate (r) = 7.5%
We can write 7.5 percent as,
7.5% = 7.5/100
= 0.075
So, r = 0.075
Let 't' represents the number of years
We need to find the number of years when the car value is 7700 dollars.
y = $7700
Using the formula of exponential decay,
⇒ y(t) = a × (1 - r)^t
⇒ 7700 = 22300 × (1 - 0.075)^t
⇒ 0.3453 = (0.925)^t
⇒ t = 13.63
⇒ t ≈ 13
Therefore, after 13 years the value of the car would be $7700
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Plz, Solveeeeeeeeeeeeeeeeeeee! I will give you all my points
1 of 6
E
© Petrol is poured into a barrel.
The graph shows the number of litres of petrol in the barrel.
Calculate how much petrol is being poured into the barrel each minute.
100 Amount of petrol (litres)
Answer:
22 Litres
Step-by-step explanation:
Hope it helps. NOT