please help me right now will give brainliest and offering 50 points
Above are two different models of the same hexagon. If the side length of the model on the left is in, what is the corresponding side length of the model on the right?
A. 10 1/4 in
B. 4 in
C. 5 in
D. 3 3/4 in
Answers
Answer:
The answer is 5 in.
Step-by-step explanation:
Since the scale for the model on the left is 1 in = 12 ft, and the scale for the model on the right is 1 in = 3 ft, the model on the right is 4 times larger than the model on the left.
Multiply the side length of the model on the left by 4 to find the side length of the model on the right.
Related Questions
Use the direct variation equation y=x/4 to solve for x when y =60
Answers
60 = x / 4
or:
60 = x : 4
x = 60 * 4
Answer: x = 240
For his long long distance phone service Chris pays a $6 monthly fee plus 8 cents per minute. Last month, Chris's long distance bill was $11.52. For how many minutes was Chris billed
Answers
total bill would be X=6.00 +0.08m
where m = minutes
X = total bill
so 11.52 = 6.00+0.08m
subtract 6 from each side
5.52 = 0.08m
now divide both sides by 0.08
5.52/0.08 = 69
he was billed for 69 minutes.
jane drinks 3 1/2 pints of milk a day. how much is this in cups?
Answers
So what we need to know first is how many cups are in a pint...
1 pint = 2 cups
So now we can set this up as a ratio or a fraction... then give the value of cups a variable (x)
1:2 = 3.5:x
x = 7 cups <----- That's your answer!
I hope this helps! :D
Please vote me for Brainliest if there is a second answer! ^__^
How much water should be added to 14 mL of 15% alcohol solution to reduce the concentration to 7%?
Answers
To decrease the concentration of a 15% alcohol solution to 7%, 16 mL of water needs to be added to the original 14 mL solution.
Explanation:The problem involves using the concept of concentration dilution that is C1V1 = C2V2, where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume.
First, we need to convert the percentage to decimal so, C1=0.15 (15% as a decimal) and C2=0.07 (7% as a decimal). We know V1=14 mL (the starting volume of the 15% alcohol solution) and we are solving for V2.
Insert the known values into the equation and solve for V2: (0.15)(14) = (0.07)(V2). After calculation, V2 is approximately 30 mL.
To figure out how much water should be added to reduce the concentration from 15% to 7%, subtract the initial volume from the final volume: 30 mL - 14 mL = 16 mL.
So 16 mL of water needs to be added to the 15% alcohol solution to reduce the concentration to 7%.
Learn more about concentration dilution here:https://brainly.com/question/22597773
#SPJ3
Which of the following nonlinear inequalities is graphed below? Picture included below!! PLEASE HELP ASAP!
Answers
and then the <= means that it is inside the ellipse
Answer:
The correct option is A.
Step-by-step explanation:
The general form of an ellipse is
[tex]\frac{x^2}{a^2}+\frac{y^2}{b^2}=1[/tex]
Where, (0,0) is the center of ellipse, (±a,0) are x-intercepts and (0,±b) are y-intercepts.
From the given graph it is clear that the center of ellipse is (0,0), (±2,0) are x-intercepts and (0,±4) are y-intercepts. So, the equation of ellipse is
[tex]\frac{x^2}{(2)^2}+\frac{y^2}{(4)^2}=1[/tex]
[tex]\frac{x^2}{4}+\frac{y^2}{16}=1[/tex]
The shaded region is inside the ellipse, (0,0) lie in the solution set and the points lie on the ellipse are included in the solution set, therefore the sign of inequality is ≤.
[tex]\frac{(0)^2}{4}+\frac{(0)^2}{16}\leq 1[/tex]
[tex]0\leq 1[/tex]
This statement is true. The required inequality is
[tex]\frac{x^2}{4}+\frac{y^2}{16}\leq 1[/tex]
Therefore, the correct option is A.
Traveling at 65 miles/hour, how many feet can you travel in 22 minutes? How do you know?
Answers
feet in a mile: 5,280 ft
65 divided by 60= 1.08 miles per minute
22 x 1.08 = 23.76 miles
23.76 mi x 5,280 ft = 125,452.8 ft in 22 minutes
[tex]\bf \cfrac{65~\underline{miles}}{\underline{hr}}\cdot \cfrac{5280~ft}{\underline{miles}}\cdot \cfrac{\underline{hr}}{60~min}\implies \cfrac{65\cdot 5280~ft}{60~min}\implies \cfrac{343200~ft}{60~min} \\\\\\ 5720\frac{ft}{min}[/tex]
now, if you can do 5720 feet in 1 minute, how many can you travel in 22 minutes?
well, just 22 * 5720.
18000 decrease by 15% every year for 3 years
Answers
2nd year= 15300 x 0.85 = 13005
3rd year= 13005 x 0.85= 11054.25
A total of 634 tickets were sold for the school play. They were either adult tickets or student tickets. There were 66 fewer students tickets sold than adult tickets. Him many adult tickets were sold?
Answers
y= adult tickets
x+y=634
y=x-66
x+y=634 x-y=66 2x=700 x=350
350+y=634 y=284
So say adult sold would be x, then student sold would be x-66
add them
x+x-66=634 solve for x
2x=700 divide each side by 2
x=350
so 350 adult and 350-66=284 student
Which system is equivalent to
y= 9x^2
x+y=5
?
Answers
Answer : Option A
Explanation:
we can clearly see that from x+ y=5 we can substitute y = 5-x in y = 9x^2
Option B is clearly incorrect x can not be y -5
Option C is incorrect because y can not be 5 +x
Option D is incorrect because its y = 9x^2 not y^2 =9x^2 so y can not be 3x
if its y^2 = 9x^2 then only implies y = 3x
Answer:
Option 1st is correct
[tex]5-x= 9x^2[/tex]
[tex]y = 5-x[/tex]
Step-by-step explanation:
Given the equations:
[tex]y = 9x^2[/tex] .....[1]
[tex]x+y = 5[/tex] .....[2]
We can write equation [2] as:
[tex]y = 5-x[/tex]
Now, substitute this y value in [1] we have;
[tex]5-x= 9x^2[/tex]
Therefore, the system which is equivalent to the given system equation is,
[tex]5-x= 9x^2[/tex]
[tex]y = 5-x[/tex]
Add or subtract the following mixed numbers using the first method. Be sure your answers are in mixed number format and reduced to lowest terms. 3 3/8 + 2 1/6 =
Answers
by using the first method,
multiplying 3/8 with 3/3 and 1/6 with 4/4 we get 9/24 and 4/24 so,
3 9/24 + 2 4/24 = (3+2) and (9/24 + 4/24)
when adding 3 and 2 we get 5 and adding 9/24 and 4/24 we get 13/24
so the answer is 5 and 13/24
A salesperson earns a base salary of $36,000 plus 2 1/2% commission on sales. His total sales for one year was $500,000. Find the salesperson's total pay for that year.
Answers
To calculate the salesperson's total annual pay, we add the commission earned from the total sales to the base salary. The commission is $12,500, and the base salary is $36,000, resulting in a total pay of $48,500.
Explanation:The question asks us to determine the total pay for a salesperson with a base salary and a commission percentage on total sales. To find the salesperson's total pay for a year, we calculate the commission earned from total sales and add it to the base salary. The salesperson's commission is 2 1/2% of $500,000, which can also be written as 0.025. We calculate the commission by multiplying 0.025 by $500,000, which equals $12,500. Therefore, the total pay for the salesperson for that year is the sum of the base salary of $36,000 plus the commission of $12,500, which gives us $48,500.
16 less than one-fourth of some number, w" can be expressed algebraically as
Answers
"one-fourth some number w"= w/4
So together
w/4-16
james put $1000 in a 2-year CD paying 7% interest, compounded monthly.
Answers
A=p (1+r/k)^kt
A future value?
P present value 1000
R interest rate 0.07
K compounded monthly 12
T time 2 years
A=1,000×(1+0.07÷12)^(12×2)
A=1,149.81
Answer with explanation:
Principal = $ 1000
Time = 2 years
Rate of Interest = 7 %
Since of rate of interest is compounded monthly,
then, [tex]R=\frac{7}{12}\\\\T=2 \times 12 =24[/tex]
Amount after 2 years
[tex]=P\times [1 +\frac{R}{100}]^T\\\\=1000 \times [1+\frac{7}{1200}]^{24}\\\\=1000 \times [\frac{1207}{1200}]^{24}\\\\=1000 \times (1.00583)^{24}\\\\=1000\times 1.14972\\\\=1149.72[/tex]
Amount after 2 years, when rate of interest, is compounded monthly=$ 1149.72
How to factor 4(x+5)^3(x-1)^2-(x+5)^4 • 2 (x-1) by grouping?
Answers
Identify the domain of the exponential function shown in the following graph: (2 points) Exponential graph starting at point 0, 30000 and approaching the x axis as it moves left to right. Select one: a. all real numbers b. x ≥ 0 c. 0 ≤ x ≤ 30,000 d. 7 ≤ x ≤ 30,000
Answers
You don't say it terminates but goes to infinity, therefore all values of x>=0 is the domain
Answer: b. [tex]x\geq 0[/tex] , where x is the positive real numbers.
Step-by-step explanation:
We Know that, The Set of all Possible values of independent variable is called Domain of the function.
Since, Exponential graph starting at point (0, 30000),
Thus, the initial value of value of independent variable is 0.
Also, The given exponential function is approaching the x axis as it moves left to right.
Therefore, The Domain must contain the all positive real numbers.
Thus, the Domain of the given function is [tex]x\geq 0[/tex] , where x is the positive real numbers.
Therefore, Option b is correct.
You place a cup of 200 degrees F coffee on a table in a room that is 67 degrees F, and 10 minutes later, it is 195 degrees F. Approximately how long will it be before the coffee is 180 degrees F? Use Newton's law of cooling: T(t)=T[a]+(T[o]-T[a])e^-kt A. 40 minutes B. 15 minutes C. 1 hour D. 35 minutes
Answers
195=67+133e^(-10k)
128=133e^(-10k)
128/133=e^(-10k)
ln(128/133)=-10k
k=-ln(128/133)/10
T(t)=67+133e^(tln(128/133)/10), if T(t)=180
180=67+133e^(tln(128/133)/10)
113=133e^(tln(128/133)/10)
113/133=e^(tln(128/133)/10)
ln(113/133)=tln(128/133)/10
10ln(113/133)=tln(128/133)
t=10ln(113/133)/ln(128/133)
t≈42.5 minutes...
t≈40 minutes (to nearest 5 minutes? :P)
short but other than that same as the the other guy
-1/9 - (-2/15)
write in simplest form
Answers
= -1/9 +2/15
= -5/45 + 6/45
= 1/45
Identify each statement as true or false, show how you would rewrite it to make it a statement.
Answers
2. true
3. false= 7•20+7•8
4. false= 4•5+4•10
5. true
if 3×1=34 2×3=65 6×1=67 5×4=209 then 6×3=
Answers
3*1=34 --> split this into two parts. 3*1 is 3 and 3+1 is 4 so put them together and you get 34.
Answer:
189 is the answer
Step-by-step explanation:
Sixty dash fivesixty-five percent of households say they would feel secure if they had? $50,000 in savings. you randomly select 88 households and ask them if they would feel secure if they had? $50,000 in savings. find the probability that the number that say they would feel secure is? (a) exactly? five, (b) more than? five, and? (c) at most five.
Answers
To solve the following problems, we use the binomial probability equation:
P (r) = [n!/(n-r)! r!] p^r q^(n-r)
where,
n = total number of households = 8
r = number of sample
p = probability of success = 65% = 0.65
q = probability of failure = 0.35
A. r = 5
P (r=5) = [8! / 3! 5!] 0.65^5 0.35^3
P (r=5) = 0.28
B. r >5
P (r=6) = [8! / 2! 6!] 0.65^6 0.35^2
P (r=6) = 0.26
P (r=7) = [8! / 1! 7!] 0.65^7 0.35^1
P (r=7) = 0.14
P (r=8) = [8! / 0! 8!] 0.65^8 0.35^0
P (r=8) = 0.03
Therefore total is:
P (r>5) = 0.26 + 0.14 + 0.03 = 0.43
C. r ≤ 5
P (r ≤ 5) = 1 - P (r>5)
P (r ≤ 5) = 1 – 0.43
P (r ≤ 5) = 0.57
You have $36,948.61 in a brokerage account, and you plan to deposit an additional $3,000 at the end of every future year until your account totals $280,000. you expect to earn 11% annually on the account. how many years will it take to reach your goal? round your answer to two decimal places at the end of the calculations.
Answers
P=36948.61
Future value of this amount after n years at i=11% annual interest
F1=P(1+i)^n
=36948.61(1.11)^n
Future value of $3000 annual deposits after n years at i=11%
F2=A((1+i)^n-1)/i
=3000(1.11^n-1)/0.11
We'd like to have F1+F2=280000, so forming following equation:
F1+F2=280000
=>
36948.61(1.11)^n+3000(1.11^n-1)/0.11=280000
We can solve this by trial and error.
The rule of 72 tells us that money at 11% deposited will double in 72/11=6.5 years, approximately.
The initial amount of 36948.61 will become 4 times as much in 13 years, equal to approximately 147800 by then.
Meanwhile the 3000 a year for 13 years has a total of 39000. It will only grow about half as fast, namely doubling in about 13 years, or worth 78000.
Future value at 13 years = 147800+78000=225800.
That will take approximately 2 more years, or 225800*1.11^2=278000.
So our first guess is 15 years, and calculate the target amount
=36948.61(1.11)^15+3000(1.11^15-1)/0.11
=280000.01, right on.
So it takes 15.00 years to reach the goal of 280000 years.
A teacher has 3 hours to grade all the papers submitted by the 35 students in her class. She gets through the first 5 papers in 30 minutes. How much faster does she have to work to grade the remaining papers in the allotted time/4347395/f56da09a?utm_source=registration
Answers
(30 minute)/(5 papers) = 6 minutes/paper.
She has 3 hours (or 180 minutes) to grade 35 papers.
She now has 180 - 30 = 150 minutes left, and she has 35- 5 = 30 papers left.
The remaining grading rate is
(150 minutes)/(30 papers) = 5 minutes/paper
Therefore she must work at 1 minute/paper faster to complete grading 35 papers in 3 hours.
Answer: She should work faster at an increased rate of 1 minute per paper.
car rental in Thailand cost $35 per day when booked in advance. If rented locally you would be charged 1800 bahts per day. If the exchange rate is 40 bahts equals $1 how much cheaper is it to book in advance
Answers
book in advance = $ 35
so it is (45 - 35) = $ 10 bucks cheaper to book in advance
Answer:
advance booking is cheaper by 400 bahts or $10.
Step-by-step explanation:
Car rental cost in advanced booking = $35 per day
and
when the rented locally it is charged = 1800 bahts per day
it is given that,
$1 is equal to 40 bahts.
now,
Car rental cost in advanced booking = 35 × 40
= 1400 bahts
hence, when booking is done advance
the cost is cheaper by 1800 - 1400 = 400 bahts
hence, advance booking is cheaper by 400 bahts or $10.
24x2+25x−47=(−8x−3)(ax−2)−53
Answers
the question is : find : a
24x²+25x−47=(−8x−3)(ax−2)−53
= -8ax²+16x-3ax +6-53
= -8ax²+16x-3ax - 47
24x²+25x−47= -8ax² + (16-3a)x -47
so : -8a = 24
16-3a =25
a = 24/-8 = -3
16-3(-3) =25...right
conclusion : a = = -3
In a study of blood donors, 200 were classified as group O and 250 had a classification other than group O. What is the probability that a person will have group O blood? (Enter your answer as a fraction.)
Answers
It always works like this.
P(O) = 200/450 = 4/9
Find the quotient of 3 1/8 and 1 2/7 .
Answers
Draw a quadrilateral with the given description
A rhombus with 6-centimeter sides and two 80 degree angles
Answers
Answer:
Step-by-step explanation:
By definition, a quadrilateral is a general term for a parallelogram and a rhombus. They are both 4-sided two-dimensional shapes with two sets of parallel sides. However, a rhombus is a special case. It has equal sides. Consequently, all its angles are equal. Therefore, the resultant drawing is alike to what's in the attached picture. But technically, all its sides are equal to 6 cm and all its angles are equal to 80°.
this figure is a regular 12 sided polygon and measure of a angle is 4
Answers
Look at the quadratic equation below. x2 - 10x + 16 = -5 What is this quadratic equation written in standard form? A.5x2 + 10x - 16 = 0 B.5x2 - 10x + 16 = 0 C.x2 - 10x + 11 = 0 D.x2 - 10x + 21 = 0
Answers
1*x^2+(-10)x+21=0
Reducing the original price of an item is often called
Answers
Answer:
Price reduction.Step-by-step explanation:
The act of reducing the selling price of products in order to attract costumers is called Price Reduction. This comprehends a marketing strategy.