Answer:
x=5
Step-by-step explanation:
[tex]\sqrt{3x+2} - \sqrt{2x+7} \\\\PLUG IN 5\\\\\sqrt{3*5+2} - \sqrt{2*5+7} = 0[/tex]
On the Mertler's vacation to Florida, they drove 180 miles in 3 hours before stopping for lunch. After lunch they drove 120 miles in 2 hours before stopping for gas. Are these rates equivalent? Explain your reasoning.
what is the midpoint of ab with endpoints A(3,2) and B (8,14
Answer:
( [tex]\frac{11}{2}[/tex], 8)
Step-by-step explanation:
Find the midpoint using the midpoint formula
midpoint = [ [tex]\frac{1}{2}[/tex](3 + 8), [tex]\frac{1}{2}[/tex](2 + 14)] = ( [tex]\frac{11}{2}[/tex], 8)
Answer: (5.5, 8)
Step-by-step explanation:
We know that midpoint (x,y) of a line XY having points having points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is given by :-
[tex]x=\dfrac{x_1+x_2}{2}\ ;\ y=\dfrac{y_1+y_2}{2}[/tex]
Then similarly, the midpoint of AB with endpoints A(3,2) and B (8,14) will be :_
[tex]x=\dfrac{3+8}{2}\ ;\ y=\dfrac{2+14}{2}\\\\\Rightarrow\ x=\dfrac{11}{2}\ ;\ y=\dfrac{16}{2}\\\\\Rightarrow\ x=5.5\ ;\ y=8[/tex]
Hence, the midpoint of AB with endpoints A(3,2) and B (8,14) = (5.5, 8)
Dmitri brought 28 ounces of trail mix for $3.92. What is the unit rate?
Answer:
The unit rate is 0.14 cents per ounce.
Step-by-step explanation:
Divide 3.92 by 28 to find out how much the trail mix is per ounce.
The unit rate of Dmitri's trail mix purchase is $0.14 per ounce, calculated by dividing the total cost by the total weight.
To find the unit rate of Dmitri's trail mix purchase, we divide the total cost of the trail mix by the total weight of the trail mix. Dmitri bought 28 ounces of trail mix for $3.92, so we perform the following calculation:
Unit Rate = Total Cost / Total Weight
Unit Rate = $3.92 / 28 ounces
Unit Rate = $0.14 per ounce
Therefore, the unit rate is $0.14 per ounce. This means that for every ounce of trail mix, Dmitri paid $0.14.
6b+4b+5 need help asap
Answer:
10b + 5 is your answer
Step-by-step explanation:
Simplify the expression as much as possible. Combine terms with the same amount of variables.
6b + 4b = 10b
10b + 5
10b + 5 is your answer
~
The top deck of a boat is 9.5 feet above the surface of a lake, while the bottom of the boat is 24 feet below the surface of the lake. What is the vertical distance between the top deck and the bottom of the boat? Drag and drop the correct value into the box to complete the statement
The vertical distance is___________________ feet.
A. -33.5
B. -14.5
C. 14.5
D. 33.5
Answer:
The answer would D.) 33.5 because 9.5+24 is 33.5 and since vertical distance is always an absolute value, it will never be a negative number.
The vertical distance between the top and bottom of the boat is calculated by summing the distances above and below the lake's surface, which total 33.5 feet, making option D correct.
To calculate this, we consider that the top deck of the boat is 9.5 feet above the surface of the lake, while the bottom of the boat is 24 feet below the surface. The total vertical distance would be the sum of these two values, as one needs to account for the entire distance the boat covers from top to bottom.
So, the calculation would be as follows: 9.5 feet + 24 feet = 33.5 feet. Therefore, the vertical distance between the top deck and the bottom of the boat is 33.5 feet. This makes option D the correct answer.
PLEASE HELP WILL GIVE BRAINLIEST the number of students at north middle school is 1240 and is decreasing by 25 students per year. The number of students at south middle school is 800 and it is decreasing by 30 students per year. in how many years will the two schools have the same number of students?
Answer:
-88
Step-by-step explanation:
Let N(x) be the number of students at NMS for a certain number of years.
Let S(x) be the number of students at SMS for a certain number of years.
Let x be the number of years.
N(x)=1240-25x
S(x)=800-30x
When # of students is equal, N(x)=S(x). Therefore, we are looking for the value of x (# of years) when 1240-25x=800-30x
Subtract 1240 from each side
-25x=-440-30x
Add 30x
5x=-400
x=-88 years
Check your numbers.
What value for the constant,h, in the equation shown below will result in an onfinite number of solutions? Equation: 6x+18=h(3x+9) Answer choices: a. -2 b.-3 c.2 d.3
Answer:
c.2
Step-by-step explanation:
6x+18=h(3x+9)
To have an infinite number of solutions, the left and right side must be equal
Distribute the h
6x+18 = 3xh +9h
6x = 3xh
Divide by x
6x/x = 3xh/x
6 = 3h
Divide by 3
6/3 =3h/3
2 =h
Lets verify
18 = 9h
Divide by 9
18/9 = 9h/9
2 =h
h must be 2
A hudson valley farmer has 26 employees.He pays each employee $410 per week.After paying his workers for one week,the farmer has $162 left in his bank account.how much money did he have at first?
Hi there!
A valley farmer has 26 employees and he pays each of them $410 per week.
After paying them for one week he has $162 dollars left. We need to find how much money he had at first.
So the first step is to multiply $410 on 26 since he gives 410 dollars to each employee, which he has 26.
$410 · 26 = $10,660
So he had $10,660 before he paid the workers, but he still had $162 left. To find out his overall total of money he had we need to add $10,660 and $162 which will be $10,822.
The farmer had $10,822
Hope this helped!~
The formula for the circumference of a circle is C = 2r. What is one-fourth of the circumference of a circle that measures 12 centimeters around? If necessary, use 3.14 for .
The formula of a circumference is:
[tex]C=2\pi r[/tex]
r - radius
or
[tex]C=d\pi[/tex]
d - diameter
We have d = 12cm. Substitute:
[tex]C=12\pi\ cm[/tex]
One-fourth of the circumference:
[tex]\dfrac{1}{4}C=\dfrac{1}{4}\cdot12\pi=3\pi\ cm\approx3\cdot3.14=9.42\ cm[/tex]
Answer: 9.42 cm.identify the property that the statement illustrates
Answer:
6 units away from 0.
Step-by-step explanation:
when move to 6 you count the units.
2−1/2n=3n+16
n=3n+16
Answer:
The answer is
n=5 3/5
Step-by-step explanation:
first collect the like terms:
2-1/2n=3n+16
then...
3n-1/2=16-2
==2 1/2n = 14
===n=5 3/5
Tickets to a play cost $4 in advance and $5 at the door. The theater club president wants to raise at least $400 from the ticket sales. If the club sells 40 tickets in advance, what is the least number of tickets the club needs to sell at the door to reach the president’s goal?
Answer:
48 tickets
Step-by-step explanation:
I just had this question on a test and got it right! So this is how i did it:
if the advance price is $4, and you sell 40 tickets in advance, you do 40 times 4.
40 x 4 = 160
so you subtract the $160 from 400 and then that brings you $240 dollars left.
*these 240 dollars will be tickets bought at the door*
to determine the amount of tickets that need to be bought left, you need to do 240 divided by 5.
and that will give you a total of:
a least amount of 48 tickets
The least number of tickets the club needs to sell at the door to reach the president’s goal, 48.
What is word problem?A word problem is a few sentences describing a 'real-life' scenario where a problem needs to be solved by way of a mathematical calculation.
Given that, Tickets to a play cost $4 in advance and $5 at the door. The theater club president wants to raise at least $400 from the ticket sales. If the club sells 40 tickets in advance,
Since, the cost if advance ticket is $4 and they already sold 40,
Therefore, collected cost = 4 × 40 = $160
Now, cost to collect yet = 400 - 160 = $240
Cost of tickets at the door = $5
Therefore, tickets to be sold to meet the goal = 240/5 = 48
Hence, the least number of tickets the club needs to sell at the door to reach the president’s goal, 48.
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A shop has 15% sale. Originally a computer cost £275. How much does the computer cost in the sale?
Answer:
= 233.75
Step-by-step explanation:
To find the discount, we multiply the original price by the percent off
discount = 275* .15
= 41.25
To get the sale price, take the original price and subtract the discount
sale price = 275-41.25
= 233.75
The box plots below show the ages of college students in different math courses
Answer:
4. The mean and median age are most likely to be same for the students in Math 1.
Step-by-step explanation:
We have been given two box plots that show the ages of college students in different math courses. We are asked to choose the true statement about these box plots.
1. The median age of the students in math 1 is greater than the median age of the students in math 2.
We can see from our given box plots that median age for both Math 1 and Math 2 is 19 that is represented by vertical middle line of box, therefore, 1st statement is not true.
2. The median age of the students in math 1 is less than the median age of the students in math 2.
Since median ages for students in Math 1 and Math 2 are same (19), therefore, 2nd statement is not true.
3. The mean and median age are most likely same for both sets of data.
We can see that box plot for ages of Math 1 students is symmetric, therefore, both mean and median will be same for Math 1 students.
The box plot representing ages of Math 2 students is skewed right as it has an outlier as 23, therefore, its mean age will be greater than median age.
Therefore, 3rd statement is not true either.
4. The mean and median age are most likely to be same for the students in Math 1.
We can see that box plot representing ages for Math 1 students is symmetric and its whiskers are equidistant from median. So both mean and median age are same that is 19, therefore, 4th statement is true.
Answer:
in shorter terms, the answer is d
Step-by-step explanation:
Arrange the steps to solve the equation
[tex] \sqrt{x + 3} - \sqrt{2x - 1} = - 2[/tex]
[tex]Domain:\\\\x+3\geq0\ \wedge\ 2x-1\geq0\\\\x\geq-3\ \wedge\ x\geq0.5\\\\D:x\in[0.5;\ \infty)[/tex]
[tex]\sqrt{x+3}-\sqrt{2x-1}=-2\qquad\text{square of both sides}\\\\(\sqrt{x+3}-\sqrt{2x-1})^2=(-2)^2\qquad\text{use}\ (a-b)^2=a^2-2ab+b^2\\\\(\sqrt{x+3})^2-2(\sqrt{x+3})(\sqrt{2x-1})+(\sqrt{2x-1})^2=4\qquad\text{use}\ (\sqrt{a})^2=a\\\\x+3-2\sqrt{(x+3)(2x-1)}+2x-1=4\qquad\text{combine like terms}\\\\3x+2-2\sqrt{(x+3)(2x-1)}=4\qquad\text{subtract 3x + 2 from both sides}\\\\-2\sqrt{(x+3)(2x-1)}=2-3x\qquad\text{square of both sides}\\\\\left(-2\sqrt{(x+3)(2x-1)}\right)^2=(2-3x)^2[/tex]
[tex]4(x+3)(2x-1)=2^2-2(2)(3x)+(3x)^2\qquad\text{use distributive property}\\\\(4x+12)(2x-1)=4-12x+9x^2\\\\(4x)(2x)+(4x)(-1)+(12)(2x)+(12)(-1)=4-12x+9x^2\\\\8x^2-4x+24x-12=4-12x+9x^2\\\\8x^2+20x-12=4-12x+9x^2\qquad\text{subtract }\ 9x^2\ \text{from both sides}\\\\-x^2+20x-12=4-12x\qquad\text{add 12 and}\ 12x\ \text{from both sides}\\\\-x^2+36x=16\qquad\text{change the signs}\\\\x^2-36x=-16\\\\x^2-2(x)(16)=-16\qquad\text{add}\ 16^2\ \text{to both sides}[/tex]
[tex]\underbrace{x^2-2(x)(16)+16^2}_{(a-b)^2=a^2-2ab+b^2}=16^2-16\\\\(x-16)^2=256-16\\\\(x-16)^2=240\iff x-16=\pm\sqrt{240}\\\\x-16=\pm\sqrt{16\cdot15}\\\\x-16=-\sqrt{16}\cdot\sqrt{15}\ \vee\ x-16=\sqrt{16}\cdot\sqrt{15}\\\\x-16=-4\sqrt{15}\ \vee\ x-16=4\sqrt{15}\qquad\text{add 16 to both sides}\\\\x=16-4\sqrt{15}\notin D\ \vee\ x=16+4\sqrt{15}\\\\\boxed{x=4(4+\sqrt{15})}[/tex]
The height of a rectangular prism is found by dividing volume, V, by the base area, B. If the volume of the rectangular prism is represented by 6x2 – 2x + 8 and the base area is 2x – 4, which expression represents the height? 3x + 5 – 3x – 7 + 3x + 5 + 3x – 7 –
Answer:
[tex](3x+5)+\frac{28}{2x-4}[/tex]
Step-by-step explanation:
Since,
The volume of a rectangular prism = Base area × Height,
Given,
Volume of the rectangular prism = [tex]6x^2-2x+8[/tex]
Base area = 2x - 4
Let h be the height,
[tex]\implies 6x^2-2x+8=(2x-4)h[/tex]
[tex]\implies h = \frac{6x^2-2x+8}{2x-4}[/tex]
By long division ( shown below ),
[tex]h=(3x+5)+\frac{28}{2x-4}[/tex]
Which is the required expression that represents the height.
Answer:
[tex](3x+5) + \frac{14}{x-2}[/tex]
Step-by-step explanation:
We are given the following information in the question:
Volume of rectangular prism =
[tex]6x^2 - 2x + 8[/tex]
Area of base of prism =
[tex]2x -4[/tex]
Formula:
[tex]\text{Volume of Prism} = \text{Area of base}\times \text{Height of prism}\\\\\text{Height of prism} = \displaystyle\frac{\text{Volume of Prism} }{\text{Area of base}}[/tex]
Putting the values we, get,
[tex]\text{Height of prism} = \displaystyle\frac{6x^2 - 2x +8}{2x-4} = \frac{2(3x^2-x+4)}{2(x-2)}= (3x+5) + \frac{14}{x-2}[/tex]
Hence, the height of the prism is given by the expression [tex](3x+5) + \frac{14}{x-2}[/tex]
how do i simplfy 2/56
Answer:
1/28
Step-by-step explanation:
think what two can be divided by it can only be divided by two
think if 56 can, it could so 2 divided by 2 is 1 and 56 divided by two is 28 so the answer is 1/28
Marcia uses 5 ounces of chicken stock to make one batch of soup.She has a total of 400 ounces of chicken stock.How many batches of soup can Marcia make
Answer:
Marcia can make a total of 80 batches of soup
Step-by-step explanation:
400(total ounces)/5(ounces per batch)=80 batches
Answer:
80 batches of soup can Marcia .
Step-by-step explanation:
Given : Marcia uses 5 ounces of chicken stock to make one batch of soup.She has a total of 400 ounces of chicken stock.
To find : How many batches of soup can Marcia make.
Solution : We have given
Marcia uses 5 ounces of chicken stock = 1. batch of soup
Marcia uses 1 ounces of chicken stock = [tex]\frac{1}{5}[/tex].
Marcia uses 400 ounces of chicken stock = [tex]\frac{400}{5}[/tex].
= 80 batch of soup.
Therefore, 80 batches of soup can Marcia .
Which of the following is a complex number?
-7
2 + √3
4 + 9i
pie (no symbol available)
Answer:
The correct answer is option C , 4 + 9i
Step-by-step explanation:
A complex number is the one which has a real number and an imaginary number.
In all the example given , option C 4 + 9i has "i" which signifies the imaginary number which nothing but a negative square root.
simplify this expression
17-a-2a-6+5a
please solve
Answer:
Answer: 2 a + 11
Step-by-step explanation:
Simplify the following:
5 a - a - 2 a - 6 + 17
Grouping like terms, 5 a - a - 2 a - 6 + 17 = (-a - 2 a + 5 a) + (17 - 6):
(-a - 2 a + 5 a) + (17 - 6)
-a - 2 a + 5 a = 2 a:
2 a + (17 - 6)
17 - 6 = 11:
Answer: 2 a + 11
The expression 17-a-2a-6+5a simplifies to 2a+11. This involves combining similar terms and simplifying the arithmetic.
Explanation:
In order to simplify the expression 17-a-2a-6+5a, we first need to gather like terms. In this expression, the like terms are -a, -2a, and +5a. When you add these together, you get 2a. Now, substitute this back into the expression. You now have 17+2a-6. If you simplify further by adding the plain numbers together, you get 2a+11. Therefore, the simplified expression is 2a+11.
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A wheel barrow can carry up to 300 pounds of weight. A bag of soil wieghs 20 pounds. Write and solve an inequality to respresent the number of bags of soil the wheelbarrow can carry.
The inequality 20x ≤ 300 represents the number of 20-pound bags of soil a 300-pound capacity wheelbarrow can carry. Solving the inequality, we find x ≤ 15, meaning the wheelbarrow can carry up to 15 bags of soil without exceeding its weight limit.
Explanation:To represent the problem as an inequality, let's say the number of bags of soil the wheelbarrow can carry is represented by x. Each bag of soil weighs 20 pounds, and the wheelbarrow can carry up to 300 pounds. So, the inequality would be 20x ≤ 300.
To solve the inequality, we divide both sides by 20: x ≤ 300/20. Therefore, x ≤ 15. This means the wheelbarrow can carry up to 15 bags of soil without exceeding its 300 pounds weight limit.
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Solve the equation 7h-5(3h- 8) = -72
Answer: h=14
Step-by-step explanation:
7h-5(3h-8)=-72
7h-15h+40=-72 > I distributed the -5(3h-8) to get rid of parenthesis
-8h+40=-72 > I combined the like terms 7h-15h
-8h=-112 > I subtracted 40 from both sides
h=14 > I divided -8 from both sides
The solution is h = 14.
What are Equivalent Expressions?These are the expressions which give the same or the equivalent result.On solving, both the expressions will get the same value.Given: Equation
7h - 5(3h - 8) = -72
Now, we will solve the equation for the value of h.
⇒ 7h - 5(3h - 8) = -72
⇒ 7h - 15h + 40 = -72
⇒ 7h - 15h = -72 - 40
⇒ -8h = -112
Dividing both sides by -8, we get:
⇒ h = 14
Therefore, the solution of the given equation is h = 14.
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please help 5 pts
The Questions
An item sells for $40. the sales tax on the item is 8%. What is the sales tax and total cost?
Twenty four 750 milliliter bottles are shipping out of the warehouse. In total,how many liters were shipped
Answer:
18 L
Step-by-step explanation:
(a) Millilitres shipped
There are 750 mL/bottle.
Vol. shipped = 24 × 750
Vol. shipped = 18 000 mL
=====
(b) Litres shipped
1 L = 1000 mL
Vol. shipped = 18 000 × 1/1000
Vol. shipped = 18 L
A ramp has a base that is 60 inches long and a height of 11 inches. Let x equal the length in inches of the slanted side of the ramp. What is the value of x?
Answer:
\\\90
Step-by-step explanation:
Answer:
61 inches
Step-by-step explanation:
took the test
10 is increased to 35
What is the percent increase?
SUPER EASY AND URGENT!
Answer:
The percent increase is 250 percent
Step-by-step explanation:
To find the percent increase we use the formula
percent increase = (new-original)/original * 100
= (35-10)/10 * 100
= 25/10 *100
250
The percent increase is 250 percent
There is a 250% increase.
Work is attached in the image provided.
which is the better buy ? 22 vitamins for $1.97 or 40 vitamins for $3.25
Choose the number below that represents the digit in the tens place of the number 128
A). 10
B). 1
C). 2
D). 8
the answer is C) 2. the 8 is in the ones place, 2 is in the tenths, and 1 is in the hundreths.
Can someone help me with these real quick?
1) write 13%20 as a decimal
2) write 7•7•7•7•7 in exponential form
3) *picture is attached
[tex]1)\\p\%=\dfrac{p}{100}\\\\13\%=\dfrac{13}{100}=0.13\\\\13\%\ of\ 20\ is\ 0.13\cdot20=2.6\\\\2)\\\underbrace{7\cdot7\cdot7\cdot7\cdot7}_{5}=7^5\\\\3)\\Use:\\a^n\cdot a^m=a^{n+m}\\\\\dfrac{a^n}{a^m}=a^{n-m}\\\\12.\ 6^2\cdot6^{-4}=6^{2+(-4)}=6^{2-4}=6^{-2}\\\\13.\ 2^{-3}\cdot2^{-2}=2^{-3+(-2)}=2^{-5}\\\\14.\ \dfrac{4^4}{4^2}=4^{4-2}=4^2}\\\\15.\ \dfrac{8^3}{8^{-2}}=8^{3-(-2)}=8^{3+2}=8^5[/tex]
8.1 + -3.5 = what?
Please help this is due soon! Thank youu
Answer:
4.6
Step-by-step explanation:
8.1 + (-3.5) = 8.1 - 3.5
4.6