Answer:
There were 72 kids there.
Step-by-step explanation:
This question can be solved using proportions, by a rule of three.
The number of kids and time are inversely proportional, that is, if we increase the number of kids to build the castle, the time it takes will decrease. This means that to solve the rule of three, instead of applying cross multiplication, we apply line multiplication.
We have that:
30 kids - 6 hours
x kids - 2.5 hours.
Applying line multiplication
[tex]2.5x = 30*6[/tex]
[tex]x = \frac{180}{2.5}[/tex]
[tex]x = 72[/tex]
There were 72 kids there.
What is the scale factor of the dilation shown? Quadrilateral D E F G has side lengths 4, 10, 8, and 4. Quadrilateral D prime E prime F prime G prime has side lengths 6, 15, 12, and 6.
Scale factor= ______:______
PLEASE I NEED HELP
Answer:
i think the scale factor is 3:2
Step-by-step explanation:
To figure the total difference divide:
6 divided by 4 = 1.5
1.5 = 3/2
pls tell me if wrong
Hope this helps
Find the solution to the system of equations
Answer:
(6,30)
Step-by-step explanation:
This is where the two lines intersect. Also, we can verify our answer by plugging 6 in for x and 30 in for y.
Graph y=2x -7 NEED HELP
Answer:
Step-by-step explanation:
it takes 120 drops of water to fill a teaspoon write the prime fractorization
of 120 using exponents
Answer:
120 = 2³×3×5
Step-by-step explanation:
Solve for u
U/9= 4/6
the answer is 6............
Answer:
U=6
Step-by-step explanation:
U/9= 4/6
Both side multiply 9
U=4*9/6
U=36/6
U=6
During a film festival, the first film
ticket is priced at $16, and each
additional ticket is $11. If Rico spends
$71, then how many film tickets did
he purchase?
Answer:
3
Step-by-step explanation:
deccweljvrl;ej e
solve for x. show your work. check your solution.
3(x+6)-5=16
Answer:
x=1
Step-by-step explanation:
3(x+6)-5=16
3(x+6)=16+5
3(x+6)=21
x+6=21/3
x+6=7
x=7-6
x=1
3(x+6)-5=16
3(1+6)-5=16
3×7-5=16
21-5=16
16=16
f(x) = V2x
g(x) = V50x
Find (f .g)(x). Assume x2 0.
Answer:
(F.g)(x)
F 2x
50(2x)
=100x
Question: f(x)= √2x
g(x)= √50x
Find (f*g) (x). Assume x ≥ 0.
(f*g)(x)=10x
Rewrite the sum as a product of two factors: 2x + (5 + x) + 5 * 2. *
An
54
How to add a great answer
ADD YOUR ANSWER
Question
Rewrite the sum as a product of two factors: 2x + (5 + x) + 5 * 2. *swer:
Step-by-step explanation:
jayfeather friend me
Lines A and B are parallel
A
130°/2
34
B
5/6
78
m 25 = [? ]°
Enter
please I will give you brainliest!
Step-by-step explanation:
measure of angle 5 = measure of angle 1 ( corresponding angle)
measure of angle 5 = 130 °
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you.
i need to know x . if you could also explain that would be nice
Answer:
x = 7.5
Step-by-step explanation:
Since the midsegment and the third segment of the triangle are parallel to each other, therefore,
[tex] \frac{8 + 10}{8} = \frac{6 + x}{6} [/tex]
[tex] \frac{18}{8} = \frac{6 + x}{6} [/tex]
[tex] \frac{9}{4} = \frac{6 + x}{6} [/tex]
Cross multiply
[tex] 9*6 = 4(6 + x) [/tex]
[tex] 54 = 24 + 4x [/tex]
Subtract 24 from each side
54 - 24 = 4x
30 = 4x
Divide both sides by 4
30/4 = x
7.5 = x
x = 7.5
Combine like terms in the expression below.
5c + 6 + 8c - 2
Plz help
3) -2x – 3y = -7
-4x + y = 21
A) (-8, 4)
C) (2, 4)
B) (-4,5)
D) No solution
Answer:
B). (-4, 5)
Step-by-step explanation:
-2x – 3y = -7 | ×2 |
-4x + y = 21 | ×1 |
-4x – 6y = -14
-4x + y = 21
____________ --
-7y = -35
y = -35/-7
y = 5
-4x + y = 21
-4x + 5 = 21
-4x = 21 - 5
-4x = 16
x = 16/-4
x = -4
A political scientist wants to estimate the percent of registered voters in Florida who plan to vote for a particular candidate. The political scientist interviews 4000 randomly selected registered voters in Florida and asks who they plan to vote for. 58% say they plan to vote for the candidate. Which of the following statements is true?
a. 58% is a parameter because it describes a population characteristic.
b. 58% is a statistic because it describes a sample characteristic.
c. 58% is a statistic because it describes a population characteristic.
d. 58% is a parameter because it describes a samic characteristic.
Answer:
b.) 58% is a statistic because it describes a sample characteristic.
Step-by-step explanation:
The randomly selected 4000 voters represents a randomly selected observations from the population of registered voters
Hence, 4000 is a sample.
The percentage of voters who would vote for a particular candidate represents a numerical characteristic derived from the sample drawn.
Recall that, numerical characteristics or values which are calculated from the sample is known as statistic while those derived from the population are called parameter.
Hence, 58% is a statistic as it describes a sample characteristic.
You can use definition of parameter and statistic and then can use them to find what does 58% denotes here.
The true statement is given by:
Option B: 58% is a statistic because it describes a sample characteristic.
What is a population and parameter?The entire group or system which we are taking in consideration is population. Nothing bigger than it lies there in consideration.
Ex: If we're taking about health problem in a country, then the whole country people form a population.
If we're taking about numbers on a 6 face die, then those 6 numbers on 6 faces form a population.
Those numbers who summarize information about population are called parameter.
What is sample and statistic?A portion of population taken and analyzed to predict information about population is called sample of that population.
Ex: When someone surveys a group, then he/she surveys a portion and not whole population in general.
Those numbers who summarize information about sample are called statistic.
(Statistic is different than statistics)
Using above definitions to conclude what 58% refers toSince the 58% is from the 4000 people randomly selected by the political scientist, thus, it is information about sample and thus, is a statistic.
Thus,
The true statement is given by:
Option B: 58% is a statistic because it describes a sample characteristic.
Learn more about population and statistic here:
brainly.com/question/3640262
Choose the appropriate test for the following situation. A company has instituted a new work policy that it hopes will reduce the number of sick days used per year by its employees. You wish to test whether the mean number of sick days used by employees this year differs from the mean number of sick days used last year by all employees (which was 8.2).
a. Two-sample t-test
b. One-sample t-test
c. Two-sample prop z-test
d. Dependent sample t-test
Answer:
i think it is a
Step-by-step explanation:
¿Como se escribe 216 geados en minutos?
Answer:
I am so sorry but I do not understand Spanish
The triangle below is reflected over the line x = 4.
Which transformation(s) would produce the same image?
2676$10
A Reflecting over the x-axis and then translating to the right 4 units
B. Reflecting over the y-axis and then translating to the right 4 units
C Reflecting over the y-axis and then translating to the right 8 units
D Reflecting over the x-axis and then translating to the right 8 units
9514 1404 393
Answer:
C. Reflecting over the y-axis and then translating to the right 8 units
Step-by-step explanation:
Reflection over the line x=4 gives you the transformation ...
(x, y) ⇒ (2·4 -x, y) = (-x +8, y)
This is precisely the same transformation you get by reflection over the y-axis:
(x, y) ⇒ (-x, y)
followed by translation to the right 8 units:
(-x, y) ⇒ (-x +8, y)
__
Reflection over x=4 is the same as reflection over y and translation right 8.
Question
Find the equation of a line that contains the points (0, -6) and (-2,-5).
Answer:
01.4
Step-by-step explanation:
00:00 At the beginning of the month, Kimberly had $65.78. Since then, she has received three payments of $32.50 from her babysitting job. Kimberly's 2 sisters each helped her babysit once during the month, so Kimberly paid them each $8.75. If Kimberly did not spend any money, how much money does she have now? Enter your answer in the box.
answer you get brainliest and we can be buddies. (i am very loney)
Answer:
10017
Step-by-step explanation:
10^(4)-\sqrt(121)+3^(3)+4^(0)
So, 3^3= 27
4^0=1
10^4=10,000
-square 121= -11
So now you got:
10,000-11+27+1
=10017
Answer:
910
Step-by-step explanation:
1000-121 =879
879 + 27+ 906
906 + 4 = 910
Given AB congruent to EB and BD congruent to BC why is angle ABC congruent to EBD
Answer:
SAS
Step-by-step explanation:
Side angle side Test
2 sides are given equal and angle between these two side is equal in both triangle
hence by SAS test
Triangle ABC and EBD are congruent
Given that x is an integer and that –15 <x 5 35,
write down the least value of x.
Answer:
a) d = 3 b) a(n) = 3n – 13 c) a(27) = 68
Step-by-step explanation:
solutions are (x, y) = (29,13) and (9349, 4181), which lead to (a, b) = (15,5) and (4895 ... corresponding to integer values of x give the quadruples. (x, y, z ... Since no number congruent to 3, modulo 4, can be written as the sum of two squares ... k is odd, the equation x2 - (k2 - 4)y2 = 4 has smallest solution in positive integers .
Some emoji math, there are more to be solve as well. 15 points for each. Must explain how to get the answers you got.
Answer:
Ladybug=7
clock= 5
bulb= 2
Step-by-step explanation:
there are a whole row of ladybugs that equal 21. 21/3=7.
on the third row, the value we need is 12, 6 won't work because we also have a bulb. so pug in 5, 5+5=10, that means the bulb is 2.
So now that we know the values, lets plug them into the first problem to see if it gives us 14... it does
So we have the correct answers
Also, you can plug in the values for the the bottom numbers and you will get those values
Ealuate the following example
52 + 4(6 + 4 + 2)
The value of the expresson
Answer:
I think the answer is 100
Answer:
[tex]100[/tex]
Step-by-step explanation:
1. Simplify 6 + 4 to 10.
[tex]52 + 4 \times (10 + 2)[/tex]
2. Simplify 10 + 2 to 12.
[tex]52 + 4 \times 12[/tex]
3. Simplify 4 × 12 to 48.
[tex]48 + 52[/tex]
5. Simplify.
[tex]100[/tex]
therefor, the answer is 100.
What is the most specific name of the quadrilateral shown below?
quadrilateral
parallelogram
rectangle
square
Answer:
rectangle
Step-by-step explanation:
Answer:
Rectangle
Step-by-step explanation:
this is the answer
can u pls help me with this question
13. How much money will 8820 Vield in investa
+ 5%. for 3 years and compounded
continuosly and semiannually and determine
which eams more?
9514 1404 393
Answer:
10,247.38 from continuous compounding10,228.50 from semiannual compoundingcontinuous compounding earns moreStep-by-step explanation:
The formula for the account balance from continuously compounded interest at annual rate r for t years is ...
A = Pe^(rt) . . . . P = principal invested
A = 8820e^(0.05·3) ≈ 10,247.38 . . . continuous compounding
__
The formula for the account balance from interest compounded semiannually at annual rate r for t years is ...
A = P(1 +r/2)^(2t)
A = 8820(1 +.05/2)^(2·3) ≈ 10,228.50 . . . semiannual compounding
Continuous compounding earns more.
Please help me. I will give Brainliest
Answer:
I don't know the answer
Step-by-step explanation:
sorry for that
Answer:
d
Step-by-step explanation:
PLS HELP asap
Marguerite answered 76% of the questions on her test correctly. What fraction of the questions did she answer correctly?
A. 38/75
B. 38/45
C. 76/125
D. 19/25
Step-by-step explanation:
the answer would be D.19/25
solve this equation pleaseee
Answer: -26/15
Step-by-step explanation:
8+7 cause f(x) is 8