Answers
Related Questions
Approximate the mean of the grouped data for the ages of the residents of a town.
The approximate mean age is years.
(Round to one decimal place as needed.)
Age
0-9
10-19
20-29
30-39
40-49
50-59
60-69
70-79
80-89
Frequency
57
73
39
65
60
47
37
13
18
Answers
Answer:
The mean age of the frequency distribution for the ages of the residents of a town is 43 years.
Step-by-step explanation:
We are given with the following frequency distribution below;
Age Frequency (f) X
0 - 9 30 4.5 135
10 - 19 32 14.5 464
20 - 29 12 24.5 294
30 - 39 20 34.5 690
40 - 49 25 44.5 1112.5
50 - 59 53 54.5 2888.5
60 - 69 49 64.5 3160.5
70 - 79 13 74.5 968.5
80 - 89 8 84.5 676
Total 242 10389
Now, the mean of the frequency distribution is given by the following formula;
Mean =
= = 42.9 ≈ 43 approx.
Hence, the mean age of the frequency distribution for the ages of the residents of a town is 43 years
Help!!! Explain too please
Answers
Answer:
5 cm/s
Step-by-step explanation:
The rate of change (ROC) is the speed at which the y variable (hieght) increases with the x variable (time). so ROC = 5.
the linear equation is y = mx + b, m is also the roc, b is the initial value, so,
if y = 60, x = 4 & b = 40, then making m the subject of equation will give the value of the ROC. i.e m = (y - b)/x = (60 - 40)/4.
The total weight of 15 boxes is 45 pounds. How much would 40 boxes weigh? *
Answers
Answer:
120 pounds
Step-by-step explanation:
15 boxes = 45 pounds
45/15= 3
1 box= 3 pounds
40 x 3 = 120
40 boxes would weigh 120 pounds
hope this helps :)
Answer: 120 lbs.
Explanation: One box weighs 3 pounds (divide 45 by 15). 3 times 40 equals 120. So the total weight is 120 pounds.
Plz mark brainliest:)
The surf instructor has an initial fee of $12 and charges $8 per hour for lessons, which is represented by the equation y = 8x + 12, where x is the number of hours and y is the total cost. The instructor gives 32 hours of lessons a month to Sandra and 24 hours of lessons a month to Bela. What is the total amount the instructor makes in a month?
Sandra: y = 8 (32) + 12. y = 256 + 12. y = 268. The instructor receives 268 dollars a month from Sandra.
The instructor makes $_472_ a month.
Answers
Answer: 472$
Step-by-step explanation:
HELP ME HELP ME please !!! 10 points
Answers
Answer:
4 &15 i think
Step-by-step explanation:
Answer:
slope is rise over run (rise/run) so the slope is 3/2 and y-int is at (0,9)
Step-by-step explanation:
lol i commented it earlier^^^^^
Two sides of a rectangle are the same length, r. The other two sides are each 4 meters.
The perimeter of the rectangle is 26 meters,
Write an equation that represents
the situation.
Answers
Answer:
4 times 4 plus 10
Step-by-step explanation:
there are waaaay more ways than just this there is
( 8 times 2 ) plus ( 5 times 2 )
and
( 5 plus 5 ) plus 16
plz mark me as brainiest
Answer:
equation= 2r+8=26
r = 9
Step-by-step explanation:
i got this lesson that's the answer.
2r+8=26
-8 -8
2r = 18
18/8 = 9
r=9
subtract 65 two times from 180
HELP PLS :)
Answers
Answer:
50
Step-by-step explanation:
180 - 65 = 115----> 115 - 65 = 50
Julissa has loan of $46,680. This loan has a simple interest rate of 4% per year. What is the amount of interest that Julissa will be charged on this loan at the end of one year? i need it now please
$18, 672
$1,867.20
$11,495
$48,547.20
Answers
Answer:
A
Step-by-step explanation:
What is 427 thousand in scientific notation
Answers
Answer:
4.27x10^2
Step-by-step explanation:
) An object travels 8 miles in 20 minutes at a constant speed. What is the object's speed in miles per hour? *
Answers
Answer:
24 mph
Step-by-step explanation:
Hope this helps
Which equation represents a line perpendicular to the line shown on the graph?
On a coordinate plane, a line goes through (0, 8) and (2, 0).
y = 4 x minus 1
y = negative 4 x + three-fifths
y = one-fourth x + 5
y = negative one-fourth x minus 1
Answers
Answer:
y=4x+4
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
These steps were used to construct the perpendicular bisector of segment DE.
Which statement MUST be true?
PHOTO ABOVE
Answers
Answer:
haha imagine math
Step-by-step explanation:
Answer: MD=ME
Step-by-step explanation:
Those are the only ones that are actually equal to eachother. Plus I hate you to the other person who didn’t answer the question but said “lol imagine math”
If f(x)=4x−3 and the domain of f is {0, 5, 10}, what is the range of f?
Answers
Answer:
It's the first one
Step-by-step explanation:
Marcus jogged all the way around a square Park that has an area of four square miles how many miles total did Marcus jog
Answers
Answer:
1.434 miles
Step-by-step explanation:
if 1.5 miles isnt an option select 1 mile
The product of negative three and a number is equal to the sum of the number and four.
Answers
-3x=x+4
-x
-4x=4
x=-1
x is equal to -1
Answer:
-3x = x + 4
umm yea! this is correct i checked it!
w(x)=5/6x-3;w(x)=-18
Answers
Answer:
x = -18
Step-by-step explanation:
Step 1: Define
w(x) = 5/6x - 3
w(x) = -18
Step 2: Substitute and Evaluate
-18 = 5/6x - 3
-15 = 5/6x
x = -18
On the planet Umpt, there are 14 boondins to every 6 totts. If farmer
Coraz has 80 boondins on his elentire farm, how many totts are on the
farm?
No decimals. Use a mixed number if needed.
Answers
Answer:
6720
Step-by-step explanation:
What represents 60=5 x 12?
Answers
Answer:
multiplication
Step-by-step explanation:
HELP ME PLEASE
after you spend this amount time on deductibles, co-payments, and co-insurance for in-network care and services, your health plan pays 100% of the costs of covered benefits
A. co-insurance
B. premium
C. policy
D. max out of pocket
Answers
Answer:
i think its co-insurance
Step-by-step explanation:
the percentage you must pay for care after you've met your deductible
Graph each system. Tell whether the system has no solution or infinitely many solutions.
x+ 2y= 10
2x + 4y= 10
Answers
Answer:
No solution, they will never meet at any point.
Step-by-step explanation:
plz help brainliest to first answer
Answers
Answer:
63° as by calculating the total angles in triangle and by applying geometry shape knowledge
The fraction 26/5 is between which two numbers?
Answers
Answer:
25/5 and 27/5
Step-by-step explanation:
26/5 = 4 1/5
26/5 is between 4 and 5.
choose the figures that are polygons
Answers
Answer:
I'm pretty sure figure A is the only one correct and also figure D
What is the slope and equation of the graph?
Answers
Answer:
Looks like the slope is -(1/2) and the equation is y= -(1/2)x + 1
How many solutions to y=2x-3 y=-x+3
Answers
Answer:
One solution, as there is only one intersection between these two lines.
x = 2, and y = 1 (point of interesection (2, 1) )
y = 2x-3
y = -x + 3
first step is to substitute the y of one equation into the other and solve for x.
- x + 3 = 2x - 3
___________
+x. +x
_____________
3 = 3x-3
_____________
+3 +3
____________
6 = 3x
_____________
÷3 ÷3
_______________
2 = x
______________
x = 2
_______________
We can verify this value is true by substituting it back into the equations and as a result also solving for the working y value.
x = 2 -> y = 2(x) - 3
2(2) - 3 = 4 - 3 = 1
y = 1
____________
x = 2 -> y = -(x) + 3
-(2) + 3 = -2 + 3 = 1
y = 1
You bike 16.2 miles in 1.8 hours at a steady rate. What equation represents the proportional relationship between the x hours you bike and the distance y in miles that you travel?
Answers
Answer:
9x
Step-by-step explanation:
You have to subtract both of the numbers and simplify it.
g(t)=
⎩
⎪
⎪
⎪
⎪
⎪
⎪
⎪
⎪
⎨
⎪
⎪
⎪
⎪
⎪
⎪
⎪
⎪
⎧
−2t(t+1)
6
5t
2t
2
+3t
,
,
,
t 12
g
(
12
)
=
g(12)=g, left parenthesis, 12, right parenthesis, equals
Answers
Answer:
HI
Step-by-step explanation:
WHAT IS THAT
Answer:
10 (In khan academy)
Step-by-step explanation:
Four bags of chips cost $12. How much do 7 bags of chips cost?
Answers
Answer:
4 bags cost 12 = 3 each bag so 3 x 7 = 21$
Step-by-step explanation:
12/4 = $3 per bag
So 7 bags x $3 = $21
Hope this helped :)
What is the distance between the two endpoints in the graph below? If
necessary, round your answer to two decimal places.
(3,5)
O A. 13.46 units
B. 11 units
C. 10 units
66,-6)
D. 14.21 units
Answers
Answer:
14.21
Step-by-step explanation:
It's actually 14.21 on A p E x
a petting zoo has 5 lambs 11 rabbits 4 goats and 4 piglets. find the ratio of goats to the total number of animals. write the ratio in the simplest form then explain its meaning
Answers
Answer:
1:6 or 1/6
Step-by-step explanation:
Because the question asks for the goats to the total number of animals, you have to write the ratio in the same order. So, there are 4 goats, and to find the total number of animals, you just add every number.
5+11+4+4=24
The result would be 4:24, and because you need the ratio in the simplest form, you just divide both sides by the same greatest number. Both 4 and 24 can be divided evenly by 4. So, when you simplify, the answer comes out as 1:6. (Ratios can also be written as fractions, just so you know!! For example, the ratio 1:6 can be written as 1/6; both answers would be correct.)
Hope this helps!!!! Have an amazing day :3