Answers
Answer: 6.68km/litre
Step-by-step explanation:
Distance(d) = 187km ( to 3 significant figures)
Petrol(p) = 28litres ( to 2 significant figures)
A number, x, rounded to 1 significant figure is 200
Write down the error interval for x
Calculating the lower and upper bound for both 'd' and 'p'
Upper bound 'd' = 187.5km
Lower bound 'd' = 186.5km
Upper bound 'p' = 28.5km
Lower bound 'p' = 27.5km
Therefore,
Petrol consumption (C) = d/p
Upper C = 187.5 / 28.5 = 6.57894
Lower C = 186.5 / 27.5 = 6.781818
Accuracy answer for C = (6.57894 + 6.781818) / 2 = 6.680379
= 6.68km/ litre ( to 3 significant figures)
To achieve a reasonable level of accuracy, the upper and lower bounds of P and D was used to calculate C, which was then averaged.
Using 3 significant figures ensure that we capture the C better, instead of early rounding.
Related Questions
What is 15.2 m to mm
Answers
Answer:
15200mm
Step-by-step explanation:
I just asked googl
Answer:
15.2m is 15200mm
Step-by-step explanation:
you multiply or divide the original number by however many tens places the other measurement is away. So, 15.2(m) is 3 tens places away from (mm) so you would multiply 15.2(m) by 1000 (15.2 x 1000) and you would get 15200
⚠️PLZ HELP⚠️
Triangle ABC is similar to
triangle FGH. What is the
value of x in centimeters?
Answers
Find the value of x that makes m|| n.
Answers
Answer:
[tex]\huge\boxed{x=23}[/tex]
Step-by-step explanation:
In order to find the value of x that makes m || n, we need to note something.
When two parallel lines are cut by a transversal, their angle measures will be the same.
Therefore, in order for m and n to be parallel, their two angles listed must be equivalent.
So, we can set these expression equal to each other and solve for x.
[tex]7x - 11 = 4x + 58[/tex] [tex]7x = 4x+ 69[/tex] [tex]3x = 69[/tex] [tex]x = 23[/tex]Therefore, x=23.
Hope this helped!
The trip from Carville to Planesborough takes 4 hours when traveling at a constant speed of 70 miles per hour. 2 1 How long, in hours, does the trip take when traveling at a constant speed of 60 miles per hour?
Answers
Answer:
2.5 mph
Step-by-step explanation:
70 miles per hour :4 hours
35 miles per hour:8 hours
1 mile per hour:16 hours
60 miler per hour
do 16/6
2.5 hours
Coach leonardo used 9 1/2 meters of string to mark a soccer field for a game. He also used 2 2/5 meters of string to mark a spot where coaches and players will be standing during the game. Which expression could be used to determine the amount of string in meters, coach lenore i used altogether
Answers
Answer:
10 19/10 meters
Step-by-step explanation:
Step one:
given data
let the amount of string used for the soccer field be x
and the amount used for coach spot be y
Also, let the total string used be represented as T
Step two:
Hence the expression for the total is
T= x+y
T= 9 1/2+ 2 2/5
T= 9.5+ 2.4
T= 11.9
or
T= 119/10 meters
or
T= 10 19/10 meters
A paint roller, shown below, is used for painting large surfaces.
2in1
9 in
Figure not drawn to scale.
How many square inches does a single rotation of the paint roller cover? (Round to the nearest tenth of a square inch.)
Answers
Answer:56.5 in
Step-by-step explanation:
June was thinking of a number. June doubles it and gets an answer of 98.9. What was the original number?
Answers
Answer: 49.45
Step-by-step explanation:
From the information, we are informed that June was thinking of a number and then doubles it and gets and gets an answer of 98.9.
Let the number be represented by x.
Since she doubles it, thus implies that:
2x = 98.9
x = 98.9 / 2
x = 49.45
The number is 49.45
x + 3y = 18
-X - 4y = -25
Answers
Y=7
-x-4(-7)=-25
-x+28=-25
-x=3
X=-3
Answer:
x = -3
y= 7
Step-by-step explanation:
x + 3y=18 ----(1)
-x - 4y=-25 -----(2)
from equation (1)
x = 18 - 3y ---(3)
putting equation (3) into equation (2)
-(18 - 3y) - 4y = -25
18 + 3y -4y = -25
3y - 4y = -25 - 18
-y = -7
y = 7 ✓
Putting y=7 into equation (1)
x + 3(7) = 18
x + 21 = 18
x = 18 - 21
x = -3 ✓
This subject is on integers
Answers
Answer:
|-8| = 8
Step-by-step explanation:
legit just the opposite of the integer.
Aaliyah needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 3 hours and charged her $66 for parts. The total was $441. Write and solve an equation which can be used to determine x, the cost of the labor per hour.
Equation:
Answer: I =
Answers
Answer:
you should try adding then subtractung the total to the part
In the diagram below, what is the approximate length of the minor arc DE?
A. 79 cm
120 F
B. 39 cm
25 cm
C. 26 cm
D. 52 cm
Answers
Answer: its D. 52 cm
Step-by-step explanation: Just got it good
x is a negative integer which is the largest
7x+4
x-4
5x
-5x
Answers
Answer:
-5x
Step-by-step explanation:
Remember, if you multiply a negative number by a negative number, you will get a positive number, and positive numbers are greater than negative numbers. In this case, if I were to multiply each of these expressions with -1, I would get the following:
7(-1)+4=-3
-1-4=-5
5(-1)=-5
-5(-1)=5
And I'm sure you can imply how these values will correspond to other negative values. Basically, the last expression gives us a positive answer, which is larger than the others (which give a negative answer).
-5x will be the largest among the options since x is the negative integer.
What is a negative integer?On the number line, a negative integer is an integer that is to the left of zero. It is not equal to zero.
Given, x is a negative integer, all given options will become negative except " -5x". written with a minus sign. a number smaller than zero, but not a fraction or a decimal fraction.
Since for any value of x, all the given options will be negative.
Therefore, Due to the fact that x is a negative integer, -5x will be the largest selection.
Learn more about negative integers here:
https://brainly.com/question/6909050
#SPJ2
Liam wants to buy a Nintendo Switch. The Switch costs $350 plus tax. He has $380. If tax is 9%, will he have enough to buy the Switch?
Answers
Step-by-step explanation:
I'm not a 100 % sure but 350.00 x 0.06 =21 so 350 +21 = 371.00
Answer:
No
Step-by-step explanation:
Switch=$350 + tax = ???
Liam's Money= $380
350*9/100=tax
tax=$31.50
350+31.50=$381.50
that's how much he would need to pay: 381.50
so:
no he won't have enough money. he's 1.50 short
Eleanor is 12 years younger than mabel. Mabel is 6 years older than izzy. Izzy is twice as old as Patrick. Patrick is 5 years old. What is the combined age of these four people?
Answers
Answer:
35
Step-by-step explanation:
E = M - 12
M = 6 + I
I = P x 2
P = 5
I = 10
M = 16
E = 4
QUICK HELP ME PLEASEEEEEEE. ONLY ONE HOUR LEFT! WILL MARK BRAIN...
Answers
Answer:
copy and paste it to math website
Step-by-step explanation:
Jack bought a bag of carrots 1 1/3 lbs of cucumbers, 1 1/6 lbs of celery, the total weight of the vegetables was 4 1/2lbs how much did the bag of carrots weigh
Answers
Answer: The answer is 2
Step-by-step explanation:
Put the following list of numbers in order from smallest to largest.
1. first 28.3
2. second 28.15
3. third 27.068
4. fourth 29.94
5. fifth 28.08
Answers
27.068
28.08
28.15
28.30
29.94
Find a positive solution for this equation..
Answers
Answer:
x=6 or x=−6
Step-by-step explanation:
how do I find the slope of a line from a table graph
Answers
Step-by-step explanation:
slope is the rise over run
rise= X
run= Y
X/Y = slope
A random survey of the quality of city parks is taken. Sixty-five percent of the people surveyed were pleased with the condition of the parks. If 182 people were pleased, then how many were surveyed? (sorry if its not a lot of points I just made an account ^ ^)
Answers
65% of 182 people is 118.3
You bought an item for $24.00, but sold it for a 30% mark up in your store. What price did you sell this item for?
Answers
WORTH A BRAINLIEST
A car driving cross-country traveled 180 mites in 4 hours. At this rate of speed, how many mites further will the car travel in the next 3 hours?
Answers
Answer:
I'm sure you mean miles, but the car will travel 135 mites.
Step-by-step explanation:
(180/4)3 = 135 miles. The car will be traveling at 45 miles per hour since 180 miles divided by four hours is 45, then you can multiply that by three to get the distance the car will travel in the next three hours. A function that models this equation is f(x)=45x.
2x + 1 = 9
is that the answer ?
Answers
Answer:
yes
Step-by-step explanation:
because 9-1=8/2 equals 4 so2x4+1=9
1) For a period of time, an island's population grows at a rate of 3.8% per year. If the current
population is 1543, what will the population be in 5.2 years?
Answers
Decrease £16855.21 by 3.5%
Answers
Answer:
16265.27765
Step-by-step explanation:
3.5 percent of 16855.21 is 589.93235
16855.21-589.93235=16265.27765
please mark me as brainliest! i'd really appreciate it<3
Select the correct answer.
If the zeros of a quadratic function are 3 and 8, what are the factors of the function?
ΟΑ.
(X + 8) and (x - 3)
OB.
(x - 8) and (x + 3)
O C.
(X + 8) and (x + 3)
OD.
(x - 8) and (x-3)
Answers
Answer:
OD
Step-by-step explanation:
The zero x=8 will make the factor (x-8) = 0 and the zero x=3 will make the factor (x-3) = 0.
so it's (x-8) and (x-3)
Help ASAP don't spam please, its about exponents
Answers
Answer:
A. FALSE
Step-by-step explanation:
pls mark me as brainliest
Answer: True
Step-by-step explanation:
what is the answer to..
Negative 10 is no less than 2 times a number plus 14
Answers
-24 ≥ 2x subtract 14 from both sides
2x ≤ -24 read right to left
x ≤ -12 divide both sides by 2
i hope this helped! <3
Is y=-3.5x-10 proportional
Answers
Answer: =3.5x Slope:
3.5
y-intercept:
0
Step-by-step explanation:
y=-3.5x-10 is an inverse proportional.
Given that, the given equation is y= -3.5x-10.
What is a proportional relationship?Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is known as the "constant of proportionality".
Put x=0, 1, 2, 3, and 4 in the given equation.
When x=0
y=-10
When x=1
y=-3.5(1)-10
=-3.5-10
=-13.5
When x=2
y=-3.5(2)-10
=-7-10
=-17
When x=3
y=-3.5(3)-10
=-10.5-10
=-20.5
Here, x increases and y decreases, it is inverse proportionality
Therefore, y=-3.5x-10 is an inverse proportional.
To learn more about the proportional relationship visit:
brainly.com/question/12917806.
#SPJ2
On Your Own #2
On a map. 1 cm represents 30 km. Two cities on the map are 2.3 cm apart
How far apart are the actual cities?
2.3 km
13 km
30 km
69 km
Scale 1:20.000 (3.2 inches to 1 mile)
0.25 0.50 0.75 1 kilometre
mile