MATHEMATICS MIDDLE SCHOOL

Kira jogs to a store 72n away in a time of 36s. What is Kira's average speed?Please show your work
Thank You

Answers

Answer 1

Answer:

The average speed should be 2n/s

Given that,

Kira jogs to a store 72n away in a time of 36s.

Based on the above information, the calculation is as follows:

$= 72/ 36$

= 2n/s

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Answer 2

Answer:

Check this attachment

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1+4 = 5 2+5 = 12 3 + 6 = 21 8 + 11= ?

Two step equation that equals 16

Answers

There are multiple equations that would fit this description, but one of them could be something like this:

$4(2^(2))=16$

Hope that helped =)

4x4 and 2x8 i have to keep typing because my answer has to be like 22 letters

Solve the system of equations below.
(x+y=21
2x = 33+ y

Answers

Answer:

(18, 3 )

Step-by-step explanation:

Given the 2 equations

x + y = 21 → (1)

2x = 33 + y → (2)

Rearrange (2) expressing y in terms of x by subtracting 33 from both sides

y = 2x - 33 → (3)

Substitute y = 2x - 33 into (1)

x + 2x - 33 = 21, that is

3x - 33 = 21 ( add 33 to both sides )

3x = 54 ( divide both sides by 3 )

x = 18

Substitute x = 18 into (3) for corresponding value of y

y = (2 × 18) - 33 = 36 - 33 = 3

Solution is (18, 3 )

Answer:

Step-by-step explanation:

x+y = 21 —> (A)

2x = 33 + y — (B)

Form eq B

2x = 33 + y

Or y = 2x - 33

By putting the value of y in equation A

x + 2x -33 = 21

3x = 21 + 33

3x = 54

x = 54/3

x = 18

Now,

y = 2 (18) -33

= 36 - 33

= 3

Thus, s.s ={( 18,3)}

ABCD is a rectangle. Find the length of each diagonal. AC = 2(x – 3) BD = x + 5

Answers

Diagonals of rectangles are equal. AC = BD, so 2(x-3) = x+5. 2x - 6 = x+5. x = 11. Plug this into x+5 and you get 11 +5 = 16.

An auto mechanic charges $50 to diagnose a problem and $25 per hour to repair the problem. If x represents the total number of hours worked and y represents the total charges, which equation represents this situation?A. y = 25x + 50
B. y = 50x + 25
C. y = 50x - 25
D. y = 25x - 50

Answers

D because 25 is the number of hours meaning that it will me your x and -50 because your giving away $50

Solve the equation t/4 = 16

Answers

First you do you opposite of dividing because of the 4 dividing the t. Since the opposite of division is multiplication you multiply and the 4's cancel each other out. So now you have t=16 but what you do to one side you do to the other so you have to * 4 the 16 giving you 64. so now you have 4 = 64. To check you have to divide 64 by 4 giving you 16 once more showing its correct.

t = 4 * 16;
t = 64;

The solution is correct because 64 / 4 = 16;

A group of related facts that use the same numbers is an