Mathematics College

A 440-yard race had ten athletes which ran for the following times (in seconds): 46.9, 48.9, 46.7, 46.2, 46.5, 47.2,47.5,46.1, 48.9, and 46.4 . What is the mean of the three fastest runners?

Answers

Answer 1

Answer:

47.13

Step-by-step explanation:

add all the numbers together

divide by how many there are

Related Questions

Find the 18h term of the arithmetic sequence whose common difference is d=4 and whose first term is a, =3.

Answers

Answer:

the 18th term is 71

Step-by-step explanation:

The general form for any term "n" in an arithmetic sequence is:

a(n) = a1 + (n-1) * d

where "d" is the common difference.

So, in our case we have:

a(n) = 3 + (n-1) *4

Therefore, the 18th term will be:

a(18) = 3 + (18 - 1) 4 = 3 + 17 * 4 = 71

Ms. Lawson loan $20,000 for a car. The interest is 2.5%, to pay in 5 years.
Calculate the simple interest: SI= PRT=-Divided by 100
SI= ST= SI=

Answers

Answer:

$2,628.16

Step-by-step explanation:

Hope this helps.

Ms. Snork bought x sport shirts at
$29 each. The total cost was $87.

Answers

That means she bought 3 shirts total!


[tex]f(2) + g(3)[/tex]
​

Answers

Answer:

Step-by-step explanation:

I am sorry but please give detailed question

Can you guys help me on question 10?

Answers

Really.................you really can’t figure this out

Answer:

D

Step-by-step explanation:

how to do this, any answers?

Answers

6.75 she will give each of them

Answer:

Eliza and each of her friends will get 6 marbles.

Step-by-step explanation:

First of all, we need to understand that she lost 18 marbles there for she will share 72 - 18 marbles with her friends. Therefore she will share 54 marbles between her and her friends. Now in order to find out the number of marbles each kid gets, we just have to divide 54 by the number of kids (including Eliza). So since there are 9 kids in total, the answer will be...

54 / 9 = 6

Therefore Eliza and each of her friends will get 6 marbles.      

please help me I will give you brainlist I promise please I really really really need help :)


(05.01)Dawn is making an abstract painting with two triangles. The dimensions of the painting are shown below:







The total area of the two triangles is _____ square inches.

Numerical Answers Expected!

Answers

Answer:

140 square inches

Step-by-step explanation:

10 times 6 is 60

and 10 times 80 is 80

and add that equals 140

9514 1404 393

Answer:

  70 square inches

Step-by-step explanation:

Forget the coloring and look at the outline of the figure. You see it is a trapezoid with bases 6 in (top) and 8 in (bottom). The height is given as 10 in.

The area formula for a trapezoid is ...

  A = (1/2)(b1 +b2)h

  A = (1/2)(6 in +8 in)(10 in) = (1/2)(14)(10) in²

  A = 70 in²

The area of the figure is 70 square inches.

_____

Alternate solution

You can add the areas of the two triangles. The area of each is ...

  A = (1/2)bh

Gray triangle: A = (1/2)(8 in)(10 in) = 40 in²

Brown triangle: A = (1/2)(6 in)(10 in) = 30 in²

Total area = 40 in² + 30 in² = 70 in²

__

If you're paying attention to the formulas, you see that the "alternate solution" computes ...

  A = (1/2)(b1)h + (1/2)(b2)h = (1/2)(b1 +b2)h . . . . . trapezoid formula

what is ( 7v + 5 ) – ( 2v + 2 )

Answers

Answer:

5v+3. I hope I helped :'D

Steps for answer!

1. Remove parentheses.

7v+5-2v-2

2. Collect like terms.

(7v-2v)+(5-2)

3. Simplify.

5v+3

Four friends shared 7 chocolate bars. Each of them was given an equal share of the chocolate bars. How many chocolate bars did each person get?

Answers

Answer:

19. 25 chocolate bars

Step-by-step explanation:

77 divided by 4=19. 25

I need help with this question I would be grateful really

Answers

Answer:

B

Step-by-step explanation:

B

the vertex is (-5,-2) which eliminates A and C. D says that the x intercepts are both positive which is obviously incorrect making B the correct answer

Which equation represents a line parallel to the line y=1/5x + 4

A. x + 5y = 25
B. 5x + y= 3
C. 5x - y= 7
D. 5y - x= -20

Answers

Answer:

d

Step-by-step explanation:

5y-x=-20

5y=x-20

y=1/5x-20

A 10 meter ladder is leaned up against a building. If
the angle of elevation is 60 degrees, what is the
height of the building?

Answers

Answer:

8.7

Step-by-step explanation:

Use trigonometry. The ladder and the building form a right triangle with the ground. You are given the length of the hypotenuse and the base angle. You use sine since we are trying to figure out the opposite side from the angle and we have the hypotenuse length. Sin = opposite/hypotenuse. So in this case, sin 60°= x/10. We solve for x by multiplying both sides by 10. Now x= sin 60° (10) = (0.8660)(10) = 8.7 m.

Solve and show steps. Thanks!

Answers

On ur calculater do 9/25(x^2 - 49/9

Drag the dots to plot (5.5, 4), (-7,1), and (0,–9).
y

Answers

5.5 always goes between 5 and 6

remember (x,y) one of the dots goes on the exactly on the axis, you have to drag it down to -9 from the y-axis

A poll is taken to see which candidate students will elect as class president. 43% of
students say they will vote for Alessandra. The poll has a margin of error of 3%, so the
least and greatest percent she could receive is represented by la – 431 = 3, where a is
the actual percent of students that vote for Alessandra. What is the lowest percentage of
votes she could receive?

Answers

Answer:

The lowest percentage of votes she could receive is 40%

Step-by-step explanation:

43% of students say they will vote for Alessandra, with a margin of error of 3%.

This means that between 43% - 3% = 40% and 43% + 3% = 46% of the students will vote for Alessandra.

This means that the lowest percentage of votes she could receive is 40% and the highest is 46%.

Mr. Gardener invested $500.000. His annual interest was $40.000. What was the annual interest rate?

Answers

Answer:

8% per year

Step-by-step explanation:

............

Find the value of
25 - 4g when g = -3​

Answers

Answer:

37

Step-by-step explanation:

25-4g

25-4(-3)=37

Answer:

the answer is 13

Step-by-step explanation:

Plug g in

24-4×-3

PEMDAS

4×-3=-12

25-12=13

Anyone knows the answer to this??

Answers

Answer:

vertical line u welcome

Answer:

Horizontal Line

Step-by-step explanation:

solve for p in the equation 2/5(15p +10)=40​

Answers

Answer:

p=6

Step-by-step explanation:

Need help!!! (will give brainliest)

Answers

Answer:

I think B 90

Step-by-step explanation:

Its a right angle

it's B because I look it up


Rearrange the equations.
a + 2 = b
a =​

Answers

Answer:

a=b-2

Step-by-step explanation:

you take 2 away from a to the right side

a=b -2 i sovled it in a appp

Can multiplying two fractions result in a product smaller than either one of the factors?
Explain your answer using at least three examples.

Answers

Sometimes, fractions can be written in 'improper' form, meaning that the top number (numerator) is bigger than the bottom number (denominator). So anything multiplied by a fraction like this will give a bigger number.

For example:
5 × 2/1 = 10
10 x 10/1 = 100

Answer:

Yes, it can. For example, 2/3 x 1/8 = 2/24; 9/10 x 5/6 = 45/60, and 3/8 x 4/5 = 12/40. These products are less than all the factors of the equations.

Help

Don’t use for points or will take it back

Answers

Answer:

It's 180-( 110+20)

=180-130

=50 degrees, hope it helps

What is the value of n when n = -4?

Answers

The answer is in your question.. figure it out!

Answer:

what the whole question

Divide 3900 between Kunal and Kirti in the ratio 15:11.​

Answers

Answer:

ilig

Step-by-step explanation:

Answer:

Kunal: 2250

Kirti: 1650

Step-by-step explanation:

15 + 11 = 26

3900/26 = 150

150 times 15 = 2250

150 times 11 = 1650

determine the simple interest when:
principal is $890, interest rate is 4.25% and the time is over 2 years​

Answers

Answer:

$75.65

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 4.25%/100 = 0.0425 per year,

then, solving our equation

I = 890 × 0.0425 × 2 = 75.65

I = $ 75.65

The simple interest accumulated

on a principal of $ 890.00

at a rate of 4.25% per year

for 2 years is $ 75.65.

3/4 of the 16 apples or green how many apples or green

Answers

Answer:

12

Step-by-step explanation:

3/4 of 16 is 12

What is the length of the hypotenuse of the triangle when x=8?

Answers

Answer:

~9.27

Step-by-step explanation:

6*8+6=54

4*8=32

54+32=86

The square root of 86 is ~9.27

escribe los múltiplos de 7 menores que 50​

Answers

Answer:

7, 14, 21, 28, 35, 42, 49

Step-by-step explanation:

7 × 1 = 7

7 × 2 = 14

7 × 3 = 21

7 × 4 = 28

7 × 5 = 35

7 × 6 = 42

7 × 7 = 49

The next multiple of 7 is 56, but this is over 50.

HELP ASAP IM CONFUsed!!! Thanks!!!

Answers

i think it is 1, 4, 6, and 7, although it looks different from when i learned this unit.
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