Total questions, T = 50.
Colin thought 8 questions were right.
Colin got 5 questions right that he thought he got wrong.
Total score, s = 45.
So, actual number of questions which are wrong are 5.
Score according to him = 50 - 8 = 42.
Now, we know percentage accuracy is given by :
[tex]\% =100- \dfrac{|Actual\ value-Theoretical\ value|}{Actual\ Vlaue}\times 100\\\\\%=100-\dfrac{|45-42|}{42}\times 100\\\\\%=100-7.14 \%\\\\\%=92.86\%[/tex]
Therefore, percentage accuracy he had with predicting his scores is 92.86%.
Hence, this is the required solution.
In cross country, the team score is determined by the place each individual runner finishes. (For example, 1st place is one point, 16th place is 16 points, etc.) In their latest meet, the boys cross-country team scored 55 points. If there were five runners on the team and each runner finished one after another, what places did they come on? Explain your reasoning and support your answer. *
Answer:
Kindly check explanation
Step-by-step explanation:
Given that there were five rummers in the team;
Each runner finished one after the other
Total. Points scored =. 55
Let the positions of each runner be :
1sr runner = p
2nd runner =.p + 1
3rd runner =.p + 2
4th runner =.p + 3
5th runner =.p + 4
(1st + 2nd + 3rd + 4th +. 5th) runner = 55
(p + p + 1 + p + 2 + p + 3 + p + 4) = 55
5p + 10 = 55
5p = 55 - 10
5p = 45
p = 9
Hence,
1st runner = 9th
2nd runner = 9 + 1 = 10th
3rd runner = 9 + 2 = 11th
4th runner = 9 + 3 = 12th
5th runner = 9+ 4 = 13th
Five students write measurements for the three side lengths of various triangles.
Student
Side Lengths
1 3, 4, and 5
2 4, 7, and 10
3 5, 12, and 16
4 6, 8, and 10
5 7, 11, and 13
Which students' measurements form a right triangle? Select ALL that apply.
A Student 1
B
Student 2
С
Student 3
D
Student 4
I
E
Student 5
Answer:
student 3 i think yea
Step-by-step explanation:
if your highway gas mileage is 26 and you take a trip that is 600 miles how much gas will you use
what is 11/12 plus (-7/12)? simplest form
Answer:
1/2
Step-by-step explanation:
11/12 + (-7/12) have the same denominator so you can leave it as is.
11/12+(-7/12) is the same as 11/12-7/12 which is equal to 6/12 which can be simplified to 1/2
Can you tell me how to divide more easily? ❤️
Answer: Either use a calculator or do mental math/ practice more often.
Answer:
look t it like multiplication then the answer is divided by one of the numbers
Step-by-step explanation:
hope this was helpful lol
What is the slope of the line that passes through the two points below?
A(-2,-9) B(2,4)
Hong needs to memorize words on a vocabulary list for Spanish class. He has memorized 30 of the words, which is five-sixths of the list. How many words are on the list?
Please Help, this is 20pts worth it.. Please Don’t waste my points.. please help..
Answer:
1. 7+62+5+4
2. 18+62+5
3.15+4+1
4.5 families
6. three
Step-by-step explanation:
Write an equations to describe the linear relationship. A moving company charges $50 flat fee and $55 per hour to move
Answer:
55(x)+50
Step-by-step explanation:
Answer:
Y=55x+50
Step-by-step explanation:
URGENT QUESTION!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
2 + 2 = ______
Answer
4
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
2+2 = 4!!!
Hope this helps :)
Look at the following graph and determine the slope of the line. AY 10 7 5 3 2 1 х 1 2 3 4 5 6 7 8 9 8 9 10
Answer:
I believe the slope is 2/3.
Which list shows the numbers in order from greatest to least?
0.6, 0.453, 0.563, 0.4
0.4, 0.453, 0.563, 0.6
0.6, 0.563, 0.453, 0.4
0.563, 0.6, 0.453, 0.4
Answer:
c
Step-by-step explanation:
its really simple it's c
What is an equation of the line that passes through the point (7, -7) and is
perpendicular to the line x – 2y = 2?
Answer:
set two equation of line y=ax+b and y=cx+d
when these two lines are perpendicular to each other, then a*c=(-1)
x-2y=2
=>x-2=2y
=>(1/2)x-1=y
set the answer is y=ax+b
we can know that a/(1/2)=(-1)
=>a=-2
bring a=-2 and(7,-7) in y=ax+b
-7=(-2)*7+b
=>b=7
the answer is y=-2x+7
Help!
A volcano on a discovered planet rises to a height of 19.529 mi.
Use the table of facts to find the height of the volcano in feet.
Round your answer to the nearest tenth.
Answer:
103, 110 ft
Step-by-step explanation:
a square living room has an area of 225 square feet what is the perimeter of the room
Answer:
divide it by 4
Step-by-step explanation:
Answer:
450
Step-by-step explanation:
225 divided by 2 is 112.5x4= 450 so 450 is your answer
2) Which car will travel the most distance (in miles) per gallon? A. The total distance that a Toyota Prius can travel in miles (M) given any gallons of gas (g) is given by M = 35g. B. A Toyota Sienna used 2.5 gallons to travel 55 miles. C. Toyota Rav4 D. Toyota Camry Gallons of Gas Total Distance 2 50 miles 3 75 miles 5 125 miles
Answer:55
Step-by-step explanation:
(1). Toyota Prius: The total distance the car can travel in miles (M) given any gallons of gas (g) is M = 35g *How much gas is used per mile?
(2)Toyota Sienna: Used 2.5 gallons to travel 55 miles *How much gas is used per mile?
Someone help ASAP!!!
Pleaseee
Answer: C
Step-by-step explanation:
A slide is when you slide it over and a flip is when you flip it around
the answer is C because it said slide than flip across
Neil is painting two squares on his bedroom wall. The length of one side of the first square is 12 inches. The second square will be 3 times the size of the first square. What is the area of the second square?
Answer:
36in
Step-by-step explanation:
12 · 3 = 36
The deductions from Jennifer monthly pay are federal income tax (FIT) of $87, state income tax (SIT) of 2.5% of gross pay, city income tax (CIT) of 1.2% of gross, social security, and Medicare. Her monthly net pay is $3,982.22. Find Jennifer's monthly gross pay
Answer:
$4,225.6
Step-by-step explanation:
Jenifer had the following deductions from her monthly pay
Federal income tax of $87
State income tax of 2.5% of gross pay
City income tax of 1.2% of gross pay
Jennifer monthly pay is $3,982.22
Therefore jenifer monthly gross pay can be calculated as follows
Let x represent the gross pay
x = 3982.22 + 87 + 1.2/100x + 2.5/100x
x = 3982.22 + 87 + 0.012x + 0.025x
x =4069.22 + 0.037x
Collect the like terms
x - 0.037x = 4069.22
0.963x = 4069.22
Divide both sides by the coefficient of x
x = 4069.22/0.963
x = 4,225.6
Hence Jennifer monthly gross pay is $4,225.6
-2/9 ÷ 1/2 as a fraction
Answer:
-4/9
Step-by-step explanation:
-2/9*2/1
-4/9
Answer:-4/9
Step-by-step explanation:used a caculator
Find the distance between (8,-4,7) and (8,5,3)
Answer:
sqrt(97)
Step-by-step explanation:
Since the x for both of the points are the same, we can reduce the problem to "find the distance between (-4, 7) and (5, 3)".
To do that, we can use the Pythagorean theorem, where (change in x)^2+(change in y)^2 = (distance)^2:
(5-(-4))^2+(3-7)^2=d^2
(9)^2+(-4)^2=d^2
81+16=d^2
97=d^2
d=sqrt(97).
The surface temperature ranges from -2°C to 31°C. Find the difference between the max and min temperatures.
Answer:
33
Step-by-step explanation:
Answer:
29c
Step-by-step explanation:
Chase and sara went to the candy store. Chase bought 5 pieces of fudge and 3 pieces of gum for 5.70. Sara bought 2 pieces of fudge and 10 pieces of gum for 3.60. Determne If I were to buy 20 pieces of fudge and 20 pieces of bubble gum, it would cost me $
Let, price of fudge and gum is x and y respectively.
Converting given statements into mathematical equation.
We get :
5x + 3y = 5.70 ....1)
2x + 10y = 3.60 ....2)
Solving equation 1 and 2, we get :
x = $1.05 .
y = $0.15 .
Price of buying 20 pieces of fudge and 20 pieces of bubble gum is :
P = 20( 1.05 ) + 20( 0.15 )
P = $24
Hence, this is the required solution.
What's the difference between Direct and Inverse Proportion? Please explain
Answer: Direct means when x goes up y also goes up, inverse means when x goes up, y goes down and vice versa.
Answer:
Step-by-step explanation:
The answer is that with direct variation, the value and the quantity changes and goes according, either lower or higher, but with inverse variation, the value can go higher, and the quantity can go lower, and the quantity can go higher, but the value can be lower.
Estimate the square root of 19 to the nearest tenths place
10m - 8n^2
(if m = 2 and 11 = -3)
The solution of the equation when m = 2 and 11 = -3 will be - 52.
What is a solution to a system of equations?For a solution to be solution to a system, it must satisfy all the equations of that system, and as all points satisfying an equation are in their graphs,
So solution to a system is the intersection of all its equation at single point(as we need common point, which is going to be intersection of course)(this can be one or many, or sometimes none)
We have been given; 10m - 8n^2
(if m = 2 and 11 = -3)
If we plug in the variable
the equation is 20 - 8(-3)^2
Now, do the exponent
So, 20 - 8^9,
Then multiply
20-72 = -52.
Therefore, the solution of the equation when m = 2 and 11 = -3 will be - 52.
Learn more about finding the solution graphically here:
https://brainly.com/question/26254258
#SPJ2
Someone please help! Asap
PLEASE HELP, MARKING BRAINLIEST!!!!
These triangles are congruent by _____.
A. SAS
B. ASA
C. AAS
D. SSS
Answer:
ASA Postulate
Step-by-step explanation:
It's Angle-Side-Angle Postulate because you can see two clearly congruent angles, two clearly congruent sides attached to that angle, and the angle connected to that line is congruent to the other triangles corresponding angle because they're vertical angles.
Answer:
B. ASA
Step-by-step explanation:
We know that the angles in which the triangles are connected are equal to one another because the lines continue and do not bend so that is your first angle, then we see a red line on both triangles indicating that the sides are equal. That is your side, and finally there is a red curve in both corners of the triangle indicating the angles are equal. Therefore the triangle is congruent by ASA.
−2(x+1/4)+1=5 PLEASE HELP
Answer:
x = -2 1/4
Step-by-step explanation:
-2(x + 1/4) + 1 = 5
-2x - 1/2 + 1 = 5
-2x + 1/2 = 5
-2x = 5 - 1/2
-2x = 4 1/2
-x = 2 1/4
x = -2 1/4
Hope this helps!
Let me know if I'm wrong :)
What is the scale factor of 12?
Scale factor: A number that enlarges/reduces a figure or shape
Greater than 1
Less than 1
Equal than 1
Need Help!!!!
Answer:
Equal to 1
Step-by-step explanation:
By using the exponential delta we can infer that the orthogonal is correct because the high order bits multivariate and are asymptomatic.