A man runs 200 m in 25 s. What is his average speed?

Answer:

A

Step-by-step explanation:

4 divided by 12 is 0.3333 so anything you do has to be more than 0.3333 and 2 divided by 4 is .5 which is more then 0.333. Hope this helps

Answer:

37.5 units

Step-by-step explanation:

I assume that there is condition: BC║DE . If so, then ΔABC ~ ΔADE ⇒ that corresponding sides are proportional.

[tex]\frac{BC}{DE}[/tex] = [tex]\frac{AC}{AE}[/tex]

AC = 30 + 20 = 50

[tex]\frac{x}{15}[/tex] = [tex]\frac{50}{20}[/tex] ⇒ x = [tex]\frac{15*50}{20}[/tex] = 37.5 units

Answer:

A)

Step-by-step explanation:

i got iititititiittiitiitititititititt

Answer:

-14 a^2 b - 42 a b^2 + 56 a b c    C. is the answer

Step-by-step explanation:

Expand the following:

-14 a b (a + 3 b - 4 c)

Hint: | Distribute -14 a b over a + 3 b - 4 c.

-14 a b (a + 3 b - 4 c) = -14 a b a - 14 a b×3 b - 14 a b (-4 c):

-14 a b a - 14×3 a b b - 14 (-4) a b c

Hint: | Combine products of like terms.

-14 a b a = -14 a^2 b:

-14 a^2 b - 14×3 a b b - 14 (-4) a b c

Hint: | Combine products of like terms.

-14 a b×3 b = -14 a b^2×3:

-14 a^2 b + -14×3 a b^2 - 14 (-4) a b c

Hint: | Multiply -14 and 3 together.

-14×3 = -42:

-14 a^2 b + -42 a b^2 - 14 (-4) a b c

Hint: | Multiply -14 and -4 together.

-14 (-4) = 56:

Answer: -14 a^2 b - 42 a b^2 + 56 a b c

Answer: ABCD is a quadrilateral

To prove : ∠AOB=

2

1

​

(∠C+∠D)

AO and BO is bisector of A and B

∠1=∠2∠3=∠4...(1)

∠A+∠B+∠C+∠D=360

(Angle sum property)

2

1

​

(∠A+∠B+∠C+∠D)=180...(2)

In △AOB

∠1+∠3+∠5=

2

1

​

(∠A+∠B+∠C+∠D)

∠1+∠3+∠5=∠1+∠3+

2

1

​

(∠C+∠D)

∠AOB=

2

1

​

(∠C+∠D)

​

Explanation: In a quadrilateral ABCD. AO and BO are bisectors of angle A and angle B respectively. Prove that ∠AOB=

2

1

​

{∠C+∠D}.

Answer:

18, 19(which has two) 20(has two)

Step-by-step explanation:

Just find the ones that appear more than one time.

Answer:

18

Step-by-step explanation:

Re-arrange

16 16,16,17,18,||18,18||,19,19,19,20,20

Find the middle number

i.e ( 18+18) /2

Answer:

2,000,000  or 2x10^6

Step-by-step explanation:  Multiply the total number of sheets in a ream times the total number of reams in a case times the number of cases.

Answer:

$150,000 (pls mark brainliest if possible)

Step-by-step explanation:

12% = $18,000

1% = $18,000/12 = $1,500

100% = $150,000

Answer:

20160

Step-by-step explanation:

If I am correct give me brainliest :)

12% of 18000 is 2160 and 18000+2160=20160

Answer:

26 boys and 39 girls

Step-by-step explanation:

if you were to divide 65 by 5 then you would get 13. all you have to do is add 13 + 13 and you would get the number of boys. for the girls you add 13 + 13 + 13.

Answer:

y = 1

Step-by-step explanation:

Given

7 + y = 5(2y - 1) + 3y ← distribute and simplify right side

7 + y = 10y - 5 + 3y

7 + y = 13y - 5 ( subtract y from both sides )

7 = 12y - 5 ( add 5 to both sides )

12 = 12y ( divide both sides by 12 )

1 = y

Answer:

6 days

Step-by-step explanation:

Step one:

Given data

For Ray

He has 16 pages already

Now he is writing 2 pages per day

let x be the number of days

and y be the total number of pages writen

the linear function for the situation is given as

y=2x+16-------------1

For Claudia

He has 2 pages already

Now he is writing 4 pages per day

let x be the number of days

and y be the total number of pages writen

the linear function for the situation is given as

y=4x+2-------------2

Step two:

let us equate equation 1 and 2 to find x

2x+16=4x+2

collect like terms

2x-4x=2-16

-2x=-12

divide both sides by -2

x=12/2

x=6

Therefore it will take 6 days for them to have the same number of pages

Answer:

Tha answer is C.

Step-by-step explanation:

As you can see in there that -3 is a repeating number.

Answer:

The ordered pair is (1, 2) ⇒ A

Step-by-step explanation:

In the function f(x) = y

That means any ordered pair (x, y) satisfy the function f(x) = y, lies on the graph of the function

∵ f(x) = 2x

→ That means y = 2x

∵ x = 1

→ Substitute the value of x in the function above

∴ f(1) = 2(1)

∴ f(1) = 2

→ That means at x = 1, y = 2

∴ The ordered pair is (1, 2)

Step-by-step explanation:

b + 16 = 20

b = 20 - 16

b = 4%

i am sorry if this is wrong :/

Answer:

download a calculator

Step-by-step explanation:

The equation of the line written in slope intercept form is 0.8333x + 24

From the question given :

General form of a slope intercept equation :

b = slope = (y2 - y1) / (x2 - x1)

Slope = (-1 - 14) / (6 - (-12)) = - 15 / 18 = 0.8333

The intercept, c can be obtained thus :

14 = 0.8333(-12) + c

14 = - 10 + c

14 + 10 = c

c = 24

Therefore, the equation can expressed thus y = 0.8333x + 24

Learn more : https://brainly.com/question/18405415

Answer: 100°

Step-by-step explanation: LKO and GKO equal 180°. 180 (total of the supplementary angles) - 80° (LKO) = 100°

Answer:

# of 5 dollar bills: 9

# of 1 dollar bills: 6

Step-by-step explanation:

9•5 = 45

1•6 = 6

To Check: 45 + 6=51

Answer:

Can I have a picture?

Step-by-step explanation:

Put it DB and I'll gladly answer!

Answer:B.x = 2

because 1 < x < 13 => x ≠ {0;14}

Step-by-step explanation:

Answer:

1.67 m/s/s.

Step-by-step explanation:

Acceleration = increase of velocity/time

= 10/6

= 1.67 m/s/s.

Answer: They used 4 cases of caesar .

Step-by-step explanation:

Given: The ratio of ranch dressing used to Caesar dressing used is 6 : 1.

Let number of ranch dressing  = 6x

Number of Caesar dressing = x

As per given, [tex]6x=24[/tex]

[tex]\Rightarrow\ x=\dfrac{24}{6}=4[/tex], which is the number of caser cases.

Hence, they used 4 cases of caesar .

Answer:

The slope is 1.

Step-by-step explanation:

Answer:

The first one sounds suprising but what is the action?

Answer:

1st option

Step-by-step explanation:

Answer:

A=3√5

B=11√7

Step-by-step explanation:

5√5-2√5

5-2√5

3√5

B) 8√7+3√7

8+3√7

11√7