Mathematics College

In a sports meet, Sonam’s team completes the run at 40 seconds during heat events. On championship day, his team completes the same run at 45 seconds. What is the percentage difference in the completion time from the best completion time?

A. 10.5%

B. 12.5 %

C. 15.5 %

D. 20.5 %​

Answers

Answer 1

Answer:

20.5

Step-by-step explanation:

Related Questions


12x + 2y = 6

A. solve for y

B. What is the slope and what is the y-intercept?

​

Answers

Answer:

y=3

B.Slope is -6 Y intercept is 0.5

Step-by-step explanation:


Find the slope and y-intercept of equation y= 10x + 18

Answers

Answer:

slope is 10

y-intercept is 18

Step-by-step explanation:

The slope and y-intercept in y = 10x + 18 are 10 and 18 respectively.

What are lines and their slopes?

We know lines have various types of equations, the general type is

Ax + By + c = 0, and the equation of a line in slope-intercept form is

y = mx + b.

Where slope = m and b = y-intercept.

the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.

Given a line in slope-intercept form which is y = 10x + 18.

We know in y = mx + b, slope = m, and y-intercept = b.

∴ In  y = 10x + 18.

Slope = 10 and  y-intercept = 18.

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Is height always a statistical subject

Answers

Answer:

It Is!

Step-by-step explanation:

"For example, “How old am I?” is not a statistical question, but “How old are the students in my school?” is a statistical question because one anticipates variability in students' ages."

Which is equivalent to the expression below? |-3|
O
13
-1-31
O
3

Answers

it’s 3, absolute value makes everything positive
answer is 3 because absolute value is always positive

which symbol will make the following statement true? |−27|_____ 19

Answers

Answer:

the greater than symbol(>)

Step-by-step explanation:

the absolute value of -27 is 27. 27>19

Find the missing side of each triangle.
1)
15 m
9 m
A) 19 m
C) 8 m
B) 17 m
D) 12 m

Answers

Answer:

20

Step-by-step explanation:

it is because its a even number XD

out of 75/6 is 72%. (Write as a fraction in simplest form.)

Answers

Answer:22%

Step-by-step explanation:

The simplest form of the total of 75/6 would be 432 / 7500.

What is the percentage?

A percentage is a minimum number or ratio that is measured by a fraction of 100. Suppose the value of which a thing is expressed in percentage is "a' Suppose the percent that considered thing is of "a" is b%

Then the percent; per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

Given that out of 75/6 is 72%.

Therefore, it will be written as;

x of 75/6 = 72%.

We need to find the value of total x.

x of 75/6 = 72%.

x × 75/6 = 72%

x × 75/6 = 72/100

Cross multiplication;

x = 72/100  ×  6/75

x = 432 / 7500

x = 0.0576

Hence, the simplest form of the total of 75/6 would be 432 / 7500.

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"Everyone has a financial plan, but not everyone has financial goals." Explain what you think this

Answers

Answer:

Everyone has financial a plan, but not everyone knows what to do to make the plan work. Planning is different from putting it into action.

Add 3/10+ 33/100+ 1+ 7/10 ( in fraction form) (this is 4th grade not middle school) please help​

Answers

Step-by-step explanation:

Please refer to the attachment

pls pls pls pls help, i will mark brainliest

Answers

Answer:

B)  81°

Step-by-step explanation:

∡1 ≅ ∡5 because they are corresponding angles

∡5 ≅ ∡7 because they are vertical angles

therefore, ∡1 ≅ ∡7

since the angles are equal we can create the following equation:

3x + 18 = 2x + 39

x + 18 = 39

x = 21

∡7 = 2(21) + 39

∡7 = 42 + 39

∡7 = 81

If you use 104 kiloliters of water per year, approximately how many liters of water do you use in a day?

2,000 liters
0.28 liters
285 liters
85 liters

Answers

Answer: 285 liters

Explanation: I did 104,000 divided by 365 on a calculator and it gave me 285

Help? I’ll give brainliest

Answers

9514 1404 393

Answer:

  10,466.7 in^3

Step-by-step explanation:

The volume of a cone is given by ...

  V = (1/3)πr^2·h

where r is the radius and h is the height. Using your numbers, we have ...

  V = (1/3)(3.14)(20 in)^2·(25 in) = 10,466.7 in^3

_____

A more accurate value of π will give a different result.

The table shows the approximate diameters of four bacteria cells.
Bacteria Cell Diameters
Cell
Diameter
(meters)
w
0.0000029
х
0.000000024
Y
0.00002
N
0.00000027
Which list shows the bacteria cells in order from least to greatest diameter?

Answers

Answer:

Step-by-step explanation:

It’s b I think

4) The length of a rectangle is 7 inches more than the width. The perimeter of the rectangle
is 178 inches. Find the width of the rectangle.

Answers

Answer:

41 inches

please mark brainliest

Step-by-step explanation:

l= 7+w

perimeter = 2(l+w) =2(7+w +w)= 2(7+2w)= 14+ 4w

178= 14+4w

4w =178-14= 164

w= 164/4 = 41 inches

Write the equation 12 = -3x + 6 in the form ax + b = c, with c = 12. What are the values of a and b?

Answers

sorry I don't know Ab = cd and bc = ad

Using SAS postulate triangles formed by ABC = abd

Opposite sides are equal and each angle is 90 degrees so by definition it is a rectangle.Ab = cd and bc = ad

Using SAS postulate triangles formed by ABC = abd

Opposite sides are equal and each angle is 90 degrees so by definition it is a rectangle.

Answer:

I think the answer is .

Step-by-step explanation:

C= 12

Hope this helps

3r^2 if r = 1/6 can someone help me please.

Answers

Answer:

Step-by-step explanation:

Answer:

f = 1/18ir^3

Step-by-step explanation:

Let's solve for f.

3r2ifr=1/6

Step 1: Divide both sides by 3ir^3.

3fir3/3ir3 =1/6/3ir3

f=1/18ir3

Find the area of a square
with a side length of 3/4

Answers

Answer:

area of square

= side × side

= 3/4 ×3/4

=9/16

Mila bought a computer with a price tag of $1,200.
After tax the total was $1,284. What was the rate of the
tax?

Answers

Answer: 7%

Step-by-step explanation:

What is the value of the expression 7x (5-3) + (100 ÷ 5)

Answers

Answer:

Step-by-step explanation:

Martina is 3 inches less than twice as tall as her little brother.


In the space below, write an expression for Martina’s height. Then, use the expression to find Martina's height if her little brother is 28 inches tall.
Help ASAP

Answers

Answer:

m=2x-3

Step-by-step explanation:

2(28)-3

56-3

53 inches

Find the measure of the missing angle.
а
54°

Answers

Answer:

a = 36°

Step-by-step explanation:

a + 54° = 90°

a = 90° - 54°

a = 36°

What is the sum of 5/7 + 5/6?

A. 10/42

B. 10/13

C. 1 & 23/42

D. 6 & 5/42

Answers

Answer:

C. 1 & 23/42

Step-by-step explanation:

Well when we add it we get 65/42 and we need to    

simplify it and we get 1 & 23/42.

Answer:

C

Step-by-step explanation:

HELP ME!
Write an equation where a number is added to a variable, and a solution is -8.

Write an equation where a number is multiplied by a variable, and a solution is - 4/5 (negative four fifths)

also dont answer if you don't know

Answers

Let the variable be x

A number isn’t given so pick any number.

Let’s use 10

Set up the equation to get:

X + 10 = -8

Solve for the variable by subtracting 10 from both sides:

X = -18

Let the variable be y and pick any number, let’s use the number 2.

Equation: 2 x y = 4/5

Solve for y by dividing both sides by 2:

Y = 2/5

What is 240 more than 100

Answers

Answer:

340

Step-by-step explanation:

240 + 100 = 340

We are looking for a new number which is 240 more than 100.
We will get the new number by adding 240 to 100.
We write it down as:
100+240=340 so the answer is 340

HELP PLEASEEEEE PLEASE HELP

Answers

Answer:

What do you need help with?

Step-by-step explanation:

The measure of Angle D is
degrees.
O=41 degrees

Answers

Answer:

49°

Step-by-step explanation:

O=41° and G=90° (because it is a right angle).  The sum of the interior angles of a triangle is 180°.  So, add the known angles, 41°+90°=131°.  Since the sum of all three angles needs to be 180°, subtract the known angles from the total, 180°-131°=49°, to find the unknown angle.  

The angle D in triangle OGD measures 49 degrees.

To find the measure of angle D in triangle OGD, we can use the fact that the sum of the angles in a triangle is always 180 degrees.

Given that angle O is 41 degrees and angle G is 90 degrees, we can substitute these values into the equation:

Angle O + Angle G + Angle D = 180

41 + 90 + Angle D = 180

131 + Angle D = 180

Now, we can solve for angle D by subtracting 131 from both sides:

Angle D = 180 - 131

Angle D = 49

Therefore, angle D in triangle OGD measures 49 degrees.

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Cesar bought 20 boxes of pizza and gave 14 nosed away what percentage is left

Answers

Answer:

30%

Step-by-step explanation:

14/20 is 70% he gave away, so 30% is left.

Answer:

30%

Step-by-step explanation:

I hope this helps :)

y = - 2x + 1
2x - 2y = 4
Solve systems of equations by substitutions

Answers

Answer:

x= 1

y= -1

Step-by-step explanation:

y=-2x+1

2x-2y=4

substitute for y

2x-2(-2x+1)=4

reduce

2x+4x-2=4

6x=6

x=1

y= -2(1)+1

y= -1

Does anyone know wha this could be

Answers

The complex conjugate of 5-4i is 5+4i

Plz help!!!!
With this question

Answers

Answer:

GH = 15

Step-by-step explanation:

14. BC = 19

GH = 9x - 3

FE = 5x + 1

Given that GH is the midsegment of the trapezoid, therefore:

GH = (BC + FE)/2

Plug in the values

9x - 3 = (19 + 5x + 1)/2

9x - 3 = (20 + 5x)/2

Multiply both sides by 2

2(9x - 3) = 20 + 5x

18x - 6 = 20 + 5x

18x - 5x = 20 + 6

13x = 26

Divide both sides by 13

x = 2

✔️GH = 9x - 3

Plug in the value of x

GH = 9(2) - 3 = 18 - 3

GH = 15

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