Answer
9.5
Step-by-step explanation:
Solve the linear equation 39-4t= 24+ t for t
Answer:
T is 3 because you could of asked google
Answer:
t = 3
Step-by-step explanation:
39-24=t+4t
15 = 5t
5t = 15
t = 15 divided by 5
t = 3
hope this helps!
pls marks as brainliest!!
7) Find the sample standard deviation. 22 29 21 24 27 28 25 36
Answer:
26.5
Step-by-step explanation:
The standard deviation of 22, 29, 21, 24, 27, 28, 25, 36 is 19.75.
What is standard deviation ?"The standard deviation is a statistic that measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance. The standard deviation is calculated as the square root of variance by determining each data point's deviation relative to the mean."
"Standard deviation is an especially useful tool in investing and trading strategies as it helps measure market and security volatility—and predict performance trends. As it relates to investing, for example, an index fund is likely to have a low standard deviation versus its benchmark index, as the fund's goal is to replicate the index."
The given numbers are 22, 29, 21, 24, 27, 28, 25, 36.
The formula for standard deviation is [tex]\sqrt({ $\sum_{n=1}^{n} (xi - mean)^2/n )= 1$}[/tex]
Finding mean of given numbers = 22+29+21+24+27+28+25+36/8 = 26.5
Now for standard deviation =[tex]\sqrt((22-26.5)^2 + (26.5-29)^2 + (26.5-21)^2+(26.5-24)^2+(26.5-27)^2+(26.5-28)^2+(26.5-25)^2+(26.5-36)^2/8 )[/tex]
= 19.75
Hence, the standard deviation of the given numbers is 19.75
To know more about standard deviation here
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please help will give brainliest
Answer:
0
Step-by-step explanation:
2nd avenue is a horizontal line, parallel to the x-axis.
The slope of a horizontal line is zero.
Answer: slope = 0
3/9 (Fraction) Into a Decimal
slope intercept form,
4x-2y=18
Answer:
x=9/2+y/2
Hope this helped
Two trains are traveling at constant speeds on different tracks. Trains Which train is traveling faster? Explain your reasoning. Train is traveling faster, because it will go 100 meters in only seconds, compared to Train
Answer:
Train A is traveling faster
Step-by-step explanation:
Train A has more distance than train B.
Train A is traveling faster, because it will go 100 meters in only seconds, compared to Train B.
I need help on this math question
Answer:
5
Step-by-step explanation:
7. Ger and Amy are planting tulips. Ger has planted 60 tulips already and is planting more at a
rate of 44 tulips per hour. Amy has planted 96 tulips already and is planting more at a rate of 32
per hour.
a. After how many hours, h, will Ger and Amy have planted the same
number of tulips?
Answer:
23 hours
Step-by-step explanation: 44*32 = 1408 1408/60 = 23.46= 23 hours
Henry has a 88 average after 7 assignments in his class. He would like
to get an A in the class, which requires an 89.5% What grade is required
on the next assignment so he can get an A
Answer: He need to score 100 in next assignment to can get an A.
Step-by-step explanation:
Given: Average marks till now = 88%
Average = (sum) divided by (Number of observations)
Here, number of assignments =7
So, [tex]88=\dfrac{(sum)}{7}\Rightarrow\ sum =88\times7= 616[/tex] (i)
After next assignment, number of assignments = 8
Required Average = 89.5
[tex]89.5=\dfrac{sum}{8}\Rightarrow\ sum = 89.5\times8= 716[/tex] (ii)
(ii)-(i) gives 100
So, he need to score 100 in next assignment to can get an A.
if x is 5, then 6x =
Answer:
30Step-by-step explanation:
x=5 (given)
6x=?
replace 5 in the place of x
===> 6(5)
===> 6×5
===> 30plzz mark as brainliest
30 POINTS AND I WILL MARK BRAINLYEST
What are the x intercept and the y intercept of the graph 9x-7y=-63 identify the x and y intercepts then choose the graph of the equation
Answer:
x intercept -7,0
y intercept 0,9
Find the measure of each marked angle. Assume the lines are parallel.
(2x - 30)° =
(x+3)° =
Answer:
Measure of each angle = 36°
Step-by-step explanation:
[tex](2x - 30) \degree = (x + 3) \degree \\ (alternate \: \angle \: s) \\ \\ 2x - 30 = x + 3 \\ \\ 2x - x = 30 + 3 \\ \\ x = 33 \\ \\ (2x - 30) \degree \\ = (2 \times 33 - 30)\degree \\ = (66 - 30)\degree \\ = 36 \degree \\ \\ (x + 3) \degree \\ = (33 + 3) \degree \\ = 36\degree[/tex]
The value of x will be equal to 33.
What are alternate exterior angles?According to the alternate exterior angle theorem, the exterior angles created on either side of a transversal when two parallel lines intersect are equal. The angle is defined as the span between two intersecting lines or surfaces at or close to the point where they meet.
Given angles (2x - 30)° and (x+3)° are alternate exterior angles so these two angles will be equal to equal to each other.
(2x - 30)° = (x+3)°
Separate all the like terms and calculate the value of x:-
(2x - 30)° = (x+3)°
2x - x = 33 + 3
x = 33
Therefore, the value of x will be equal to 33.
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A research company surveys 8,000 people. The company expects 6,000 people to respond favorably. If there is a percent error of 2.5%, what is the range of people who will respond favorably to the survey?
Enter the correct answers in the boxes.
Least number of people:
Greatest number of people:
BIG POINTS ILL MARK YOU IF THE ANSWER IS RIGHT
Answer:
Step-by-step explanation:
uhhhhh dhyvcehbcej
The perimeter of a triangle is 147 inches. The sides of the triangle measure 6x + 4, 3x - 7 and 5x + 10. Fine the value of X.
Answer:
x = 10
Step-by-step explanation:
64 + 23 + 60
=
147
14=3y
This is DPOE and MPOE . 7th Grade honors ( 8th grade math)
Answer:
I dont know what dpoe and mpoe means but to get 14=3y I would assume you would divide 14 by 3 and 3y by 3 to get 14/3=y. and then you have to figure out what 14 divided by 3 is because I want to go to bed
Write an equation that represents the relationship between the distance the car has traveled in miles, , and the amount of gas left in the tank in gallons x
Answer: y= Y/x = ?
Step-by-step explanation: write the equation like said, and use the numbers you get to fill in. So say you traveled 500 miles , and you had 540 miles till empty yku would have 40 miles left , so you traveled 500 miles per gallon of gas :) hope this helps
A corn vendor at a farmer's market was selling a bag of 8 ears of corn for $2.56. Another vendor was selling a bag of 12 for $4.32. Which bag is the better deal? Explain or show your reasoning.
25/x - 17/x, x ≠0
Please?
Answer:
60
Step-by-step explanation:
hmmmmmmmmmmmmmmmmmmm
What is the missing side of this right triangle: a = ?, b = 9, c = 11 ?
Answer:
Step-by-step explanation:
a²+b²=c²
a²+9²=11²
a²+81=121
a²=40
[tex]\sqrt40[/tex]
a=6.32
Look at the pre-image and the image. Describe the translation.
Answers choices:
The image translated two units to the left and six units down.
The image translated two units to the right and five units up.
The image translated zero units to the left/right and ten units up.
The image translated nine units to the left and two units up.
The image translated eight units to the right and five units down.
two wires are 12m and 16cm long the wires are to be cut into pieces of equal legnth. find the miximum lenght each piece
Answer:
Step-by-step explanation:
The answer is 4m.
What is another way to select (5-x)
Answer:
x-5
Step-by-step explanation:
Because the opposite of (5-x )is (x-5)
Answer:
x-5 or -5x
Step-by-step explanation:
A building's basement is 12 feet below ground. If the total length of the building from basement to roof is 62 feet, what is the building's elevation above ground?
Answer:
62-12=50
Step-by-step explanation:
hope that helps!
Sylvia buys a case of water that contains 24 bottles and sells x number of bottles to her co- workers. Sam buys a case of water that contains 36 bottles and sells three times as man bottles as Sylvia sold to his co-workers. How many bottles of water did Sylvia sell if they ended up with the same number of bottles of water left over?
Answer:
6 bottles
Step-by-step explanation:
Given the following :
SYLVIA:
Case of water = 24 bottles
Number of bottles sold = x
SAM:
case of water = 36 bottles
Number of bottles sold = 3x
Number of bottles left after sales are the same ;
Number of bottles left :
24 - x = 36 - 3x
Then solve for x
-x + 3x = 36 - 24
2x = 12
x = 12/2
x = 6
Hence, Sylvia sold 6 bottles of water.
Lin ran 2 3/4 miles in 2/5 of an hour, Noah ran 8 2/3 miles in 4/3 of an hour. How long would it take Lin and Noah to run 1 mile at that rate?
Answer:
Step-by-step explanation:
Lin
Distance = 2 3/4 miles
Time = 2/5 hours
= distance / time
= 2 3/4 ÷ 2/5
= 11/4 × 5/2
= 55/8
= 6 7/8
It would take Lin 6 7/8 hour to run 1 mile at a constant rate
Noah
Distance = 8 2/3 miles
Time = 4/3 hour
= distance / time
= 8 2/3 ÷ 4/3
= 26/3 × 3/4
= 26/4
= 13/2
= 6 1/2
It would take Noah 6 1/2 hour to run 1 mile at a constant rate
Brandon has 32 pieces of paper. Sophia has 2 times as many pieces of paper as Brandon. How many pieces of paper does Sophia have?
Answer:
64 pieces of paper
Step-by-step explanation:
32 × 2 = 64
So 2x32 is 64 write down 32 then write x 2 now make a line your answer is 64
One week, Jose earned $145.60 at his job when he worked for 7 hours. If he is paid the same hourly wage, how many hours would he have to work the next week to earn $83.20?
Which of these numbers round to 6.81 nearest hundredth
Answer:
6.81
Step-by-step explanation:
If the last digit in the fractional part of 6.810 is less than 5, then simply remove the last the digit of the fractional part.
Answer:
6.81 stays the same you can't round it because there is a 1 behind the 8 so u givee it a rest so stays the same
is 2 1/6 a irrational?
Answer:
it is rational
Step-by-step explanation:
hope i help? :DD
please help. i dont know how to do it cuz im dumb
Answer:
The image is reflecting in the x axis
Step-by-step explanation:
hope that's what you were looking for. if not, the middle of both of the images is (0, .5)