Answer:
she uses 72 gallons
Step-by-step explanation:
just do 144/2 and the answer is 72
if you wanna check your answer just do 72x2 and it equals 144
Lena sells earrings from a booth at the arts fair. She pays $200 to rent the booth. She makes $5 from each pair of earrings she sells. Her profit. P. can be found using the following equation, where n is the number of pairs of earrings sold. P = 5n - 200 How many pairs of earrings must Lena sell to earn a profit of $450?
Answer:
130 earrings
Step-by-step explanation:
P=450
450=5n-200
+200 +200
650=5n
/5 /5
n= 130
She would have to sell 130 earrings in order to earn a profit of $450.
What is profit?Profit is the money earned by a business when its total revenue exceeds its total expenses.
Given is Lena who sells earrings from a booth at the arts fair. She pays $200 to rent the booth. She makes $5 from each pair of earrings she sells. Her profit [P] can be found using the following equation (where n is the number of pairs of earrings sold) → P = 5n - 200.
Now, we have the following equation -
P = 5n - 200.
Now, for a profit of $450, substitute [P] by 450 as -
450 = 5n - 200
5n = 450 + 200
5n = 650
n = 130
Therefore, she would have to sell 130 earrings in order to earn a profit of $450.
To solve more questions on equation modelling, visit the link below-
https://brainly.com/question/12666094
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The principal represents an amount of money deposited in a savings account subject to compound interest at the given rate.
Principle $ 20,000 Rate 5.5% Compounded Daily Time 16 years
Required:
a. Find how much money there will be in the account after the given number of years. (Assume 360 days in a year.)
b. Find the interest earned.
Answer:
Kindly check explanation
Step-by-step explanation:
Given that:
Principal = $20000
Interest rate = 5.5% = 0.055 compounded daily
Time = 16years =(360 * 16) = 5760
n = number of times interest is applied per period
Amount of money in account after 16 years :
A = p(1 + r/n)^nt
A = total amount
A = 20000(1 + 0.055/360)^(360*16)
A = 20000(1 + 0.0001527)^5760
A = 20000(1.0001527)^5760
A = 48193.1611
Interest on principal :
$48193.1611 - $20000
= $28193.1611
The first number is 12 less than the second number. The total of the two numbers is 154.
Answer:
65
Step-by-step explanation:
6x-3x+4-2x= no solution
Answer:
1x = 3x
Step-by-step explanation:
This is could be wrong not sure.
Which equation represents the situation below?
John owed the bank 7 dollars, but he made 12 dollars.
Answer:
12-7=5
Step-by-step explanation: if you u need a equation for how much he has there u go
4.) Ariel makes her own jewelry to sell at the Street Fair. She can make 12 bracelets in 4 hours. If she works for 5 hours every Thursday for 4 Thursdays, how many bracelets will she make?
Answer:
60bracelets
Step-by-step explanation:
To solve this problem, we need to find her rate. This is the number of jewelries she makes per unit of time;
Rate = [tex]\frac{number of jewelries}{time taken }[/tex]
Number of jewelries = 12 bracelets
time = 4hrs
Input the parameters:
Rate = [tex]\frac{12}{4}[/tex] = 3bracelets/hr
She works 5hrs for 4 Thursdays;
Number of hours worked = 5 x 4 = 20hrs
Now, working at a rate of 3bracelets/hr for 20hrs, the number of bracelets she will produce is given as;
Number of bracelets = number of hours x rate
= 20 x 3
= 60bracelets
What is the value of the expression -(-4)(-6)-3/5(10+15)
Answer:
-(-4)(-6)*3/5(10+15)
when there is a (-) in front of an expression in parentheses, change the sing of each term in the expression.
4*(-6)*3/5*(10+15)
Add the numbers (10+15)
4(-6)*3/5*25
multiplying an odd number of negative terms makes the product negative
-4*6*3/5*25
reduce the number with the greatest common factor 5
-4*6*3*5
calculate the product
solution
-360
Help me plsss!! Thank youuuu.
Answer:
The answer is B.
Step-by-step explanation:
can you write an equivalent fraction for 9/11 and 6/7 using the least common denominator ?
Answer:
The least common denominator is 77 so the fractions would become 63/77 and 66/77.
Anna is in a cave 42 feet below the cave entrance. She descends 10 feet, then ascends 15 feet. Find her new position relative to the cave entrance.
Answer:
Her new position is 37 feet below the cave entrance
Step-by-step explanation:
Let us solve the question
∵ The cave entrance is the zero position
∵ Anna is in 42 feet below the cave entrance
→ Below zero means negative
∴ Anna is in -42 feet
∵ She descends 10 feet
→ Descend means negative
∴ She is in -42 + -10 = -52 feet
∵ She ascends 15 feet
→ Ascend means positive
∴ She is in -52 + 15 = -37 feet
→ -37 means she is in below the cave entrance by 37 feet
∴ Her new position is 37 feet below the cave entrance
Help me guys I suck at fractions :(
Answer:
its b are c i think
Step-by-step explanation:
Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the
equation 3x-5=-2x+ 10?
A. X=5. B.—5=x. C.—15=—5x. D.—5x=15
Answer:
A; (X=5)
Step-by-step explanation:
Move the constants and variable terms to one side:
3x-5= -2x+10
-5+10= -2x+ 3x
Combine like terms:
5=x or x=5
Answer:
The answer is C
Step-by-step explanation:
If you take the equation and simplify it.
3x-5=-2x+10
You would minus 3x from both sides, leaving the equation like
-5=-5x+10
Then you would minus 10 from both sides, leaving the equation like
-15=-5x
If you wanted to go further you could divide both sides by -1 and get rid of the negatives. Leaving the equation like
15=5x
Then to put it into the simpleist form you would divide both sides by 5, leaving the equation like
3=x
I hope this helps.
A bee flies at 10 feet per second directly to a flowerbed from its hive. The bee stays at the
flowerbed for 16 minutes, and then fies directly back to the hive at 8 feet
per second it is away from the hive for a total of 20 minutes
a. What equation can you use to find the distance of the flowerbed from the hive?
b. How far is the flowerbed from the hive?
a. Write the equation Leld be the distance of the flowerbed from the hive
(Type an equation Use integers of fractions for any numbers in the equation. Do not simplity)
Answer:
a. s = [tex]\frac{d}{t}[/tex]
b. 9600 ft
Step-by-step explanation:
In the given question, the motion of the bee involves speed (s), distance (d) and its time of flight (t).
a. The equation required to determine the distance of the flowerbed from the hive/ hive to flowerbed is;
speed = [tex]\frac{distance}{time}[/tex]
i.e s = [tex]\frac{d}{t}[/tex]
b. Given that: the bee flies back at 8 feet per second, and in 20 minutes (1200 seconds);
s = [tex]\frac{d}{t}[/tex]
⇒ d = s x t
= 8 ft/s x 1200 s
= 9600 ft
The flowerbed is 9600 feet from the hive.
A teacher divides the students into three groups for project. Each group has the same number of students. Is the total number of students prime or composite? Explain period
It could be either.
1 + 1 + 1 = 3, which is prime
2 + 2 + 2 = 6, which is composite
Which statements about opposites are true? (Select all that are correct)
Which is the better deal 8 ounces of shampoo for $0.99 or 12 ounces for $1.47?
Answer:
12 ounces for $1.47.
Step-by-step explanation:
:) ello
Write an equivalent expression by distributing the "_" sign outside the parentheses:
-(5n - 9.1)
Answer:
-5n+9.1
Step-by-step explanation:
- - = +
A King in ancient times agreed to reward the inventor of chess with one grain of wheat on the first of the 64 squares of a chess board. On the second square the King would place two grains of wheat, on the third square, four grains of wheat, and on the fourth square eight grains of wheat. If the amount of wheat is doubled in this way on each of the remaining squares, how many grains of wheat should be placed on square 24 ? Also find the total number of grains of wheat on the board at this time and their total weight in pounds. (Assume that each grain of wheat weighs 1/7000 pound.)
Answer:
1) 8,388,608 grains of wheat.
2) 16,777,215 grains of wheat.
3) 239,674.5 pounds.
Step-by-step explanation:
Question 1)
We know that on the first square, there is 1 grain of wheat.
On the second, 2 grains of wheat.
On the third, 4 grains of wheat.
And on the fourth, 8 grains of wheat.
Therefore, we have a geometrically increasing sequence. It looks like:
1, 2, 4, 8...
Therefore, to find the number of grains on the 24th square, we can write an explicit formula.
The standard form for the explicit formula for a geometric sequence is:
[tex]x_n=a(r)^{n-1}[/tex]
Where a is the initial amount, r is the common ratio, and n is the nth term (starting from 1).
We know that the initial term a is 1 because there’s one grain of wheat on the first square.
And the common ratio will be 2 because each square has double the amount of the previous square.
So, substitute 1 for a and 2 for r. This yields:
[tex]x_n=1(2)^{n-1}\\[/tex]
We can simplify this:
[tex]x_n=2^{n-1}[/tex]
So, to find the amount of wheat on the 24th square, we simply need to substitute 24 for n and evaluate. So:
[tex]x_{24}=2^{24-1}=2^{23}[/tex]
Evaluate. Use a calculator:
[tex]x_{24}=8,388,608[/tex]
Therefore, on the 24th square, there are 8,388,608 grains of wheat.
Question 2.1)
We want to find the total number of grains of wheat on the board at this time.
In other words, we want to find the sum of our geometric sequence when n is 24.
The formula for the sum of a geometric series is:
[tex]S_n=\frac{a(r^n-1)}{r-1}[/tex]
Where rⁿ is the value of the number of terms n, r is the common ratio, and a is the initial term.
We want to find the sum after 24 times. So, n is 24.
So, substitute 24 for n, 2 for r, and 1 for a. This yields:
[tex]S_{24}=\frac{(1)(2^{24}-1)}{2-1}[/tex]
Evaluate. Use a calculator:
[tex]S_{24}=16, 777, 215[/tex]
Therefore, the total sum of the number of grains of wheat at the board at the 24th square is 16,777,215.
Question 2.2)
And to find the weight, we will just have to multiply our total amount by 1/7000. So:
[tex]W=16777215(\frac{1}{70})[/tex]
Use a calculator:
[tex]W=239,674.5\text{ lbs}[/tex]
So, the total weight is 239,674.5 pounds.
what is the length of the missing side , x
Answer:
Yes please i really need it
Step-by-step explanation:
Can someone help me plz
need help with this problem?
I need to know if it’s parallel, perpendicular or neither please explain as well.
Analysing the Question:
We are given the following equations:
x - y = 4
x + y = 9
writing these equations in slope-intercept form
y = x - 4
y = -x + 9
the general form of the slope-intercept equation is : y = mx + b (where m is the slope and b is the y-intercept)
Hence, we can say that the for Equation 1:
Slope = 1
y-intercept = -4
For equation 2:
Slope = -1
y-intercept = 9
Finding if the lines are Perpendicular, parallel or neither
If the slope of the lines is equal, the lines are parallel
If the slope of the lines is the additive inverse (negative) of each other, the lines are perpendicular
Since the slopes of the 2 lines are the additive inverse (negative) of each other, the lines are perpendicular [slope 1 = 1 , slope 2 = -1]
Convert to a fraction.
3%
A:50
B:3
C:100
D:30
E:100
Answer:
3 over 100
Step-by-step explanation:
Wilson paints 40% of a bookcase in 20 minutes. How much more time will it take to finish the bookcase
Answer:
50 mins
hope this helped :)
What is the term for protection that guarantees payment to you in the event of financial loss?
OA.
claim
OB.
insurance
O c. premium
Help me please ...
Answer:
B. Insurance
Step-by-step explanation:
C: Determine the measure of the obtuse angle formed at the intersection of AV and HI
Answer:
146°70°104°Step-by-step explanation:
GivenCS║BMTo findA. m∠MIHB. m∠AVMC. Obtuse angle at the intersection of AV and HISolutionA...................................
∠MIH and ∠IHS are same side interior angles and sum up to 180° as per property, therefore
m∠MIH = 180° - 34° = 146°B...................................
∠AVM and ∠VAS are same side interior angles
and ∠VAS and ∠LAH are vertical angles, which are equal as per property of vertical angles, so:
m∠AVM = 180° - m∠VAS = 180° - 110° = 70°C...................................
Obtuse angle at the intersection of AV and HI, if name the intersection point O:
∠AOI = ∠HOV∠AOI = 180° - ∠AOH = 180° - (180° - 34° - 70°) = 104°How do I do this problem?
A recipe calls for 18 ounces of cream cheese with 15 ounces of sugar." How many ounces of cream cheese are there per ounce of sugar?
PLEASE HELP
Answer:
1.2
Step-by-step explanation:
Just divide
Answer:
1.2
Step-by-step explanation:
Divide 18 by 15 and get the answer.
The sum of 48 and itself, its half and half of the half is added to 18.
Answer:
150
Step-by-step explanation:
This is a word problem which should be tackled accordingly.
The sum of 48 and itself
= 48+48
= 96
It's half and half of its half
= 48/2 and (48/2)/2
= 24+ 24/2
= 24+12
= 36
Is added to 18
= 96+36+18
= 150
From the description above the entire sum is 150.
If a =3 and b = -1, what is the value of ab-b2?
Answer:-1
Step-by-step explanation:
Answer: -2
Step-by-step explanation:
