MATHEMATICS MIDDLE SCHOOL

What is -3 and 1/3 divided by 9? Answers: A. -10/27 b. -1/9 C. 1/9 D. 10/27

Answers

Answer 1

Answer: $-3(1)/(3):9=-(10)/(3):9=-(10)/(3)\cdot(1)/(9)=-(10\cdot1)/(3\cdot9)=-(10)/(27)\n\nAnswer:A$

Answer 2

Answer:

-3 1/3 divide 9

9 can be written as 9/1

use the method keep change flip

-10/3 * 1/9 = -10/27

remember negative times positive equals negative.

Answer: A.-10/27

56

Step-by-step explanation:

$\bold{METHOD\ 1:}\n\n\begin{array}{ccc}100\%&-&x\n75\%&-&42\end{array}\qquad\text{cross multiply}\n\n75x=(100)(42)\n75x=4200\qquad\text{divide both sides by 75}\n\boxed{x=56}$

$\bold{METHOD\ 2:}\n\np\%=(p)/(100)\to75\%=(75)/(100)=0.75\n\n75\%\ of\ x\ is\ 42\to0.75x=42\qquad\text{divide both sides by 0.75}\n\n\boxed{x=56}$

Notes on isosceles triangles, base angles and notes on the diagonals thanks :D

Answers

Hey,
In isosceles triangles there r two equal sides .
Base angles is usually used for isosceles triangles ....
Diagonals are two lines which intersect each other...

As part of a competition Diego must spin around in a circle six times and then run to a tree. The time he spends on each spin is represented by s and the time he spends running is r. He gets to the tree 21 seconds after he starts spinning. Write an equation showing the relationship between s and r.

Answers

Answer:

6s + 2r = 21

Step-by-step explanation:

Please kindly see the attached file for explanaion

A square has a perimeter of 20 cm what is the length of its diagonal rounded to the nearest tenth

Answers

-- All 4 sides of a square are the same length.
   The perimeter is 20 cm.
   So each side is (20/4) = 5 cm.

-- If you cut the square along its diagonal, and throw one piece away ...

   You have a right triangle.
   The legs are sides of the square ... 5 cm each.
   The hypotenuse is the diagonal of the square, which you have to find.

-- The (hypotenuse of any right triangle)²

   = (the length of one leg)² + (the length of the other leg)² .

   (Diagonal)² = (5 cm)² + (5 cm)²

   (Diagonal)² = (25 cm²) + (25 cm²)

   (Diagonal)² = (50 cm²)

   Diagonal = √(50 cm²) = 7.07 cm

   or 7.1 cm rounded to the nearest tenth.

multiply the length of one side by the square root of 2.

20√2 = 28.28
Rounded to the nearest tenth:
28.28→28.3

28.3 is the final answer

Arrange these numbers from least to greatest: -5/8, -7/9, -4/5, -3/7 A. -7/9 -5/8 -3/7 -4/5
B. -4/5 -7/9 -5/8 -3/7
C. -4/5 -5/8 -7/9 -3/7
D. -3/7 -4/5 -5/8 -7/9

Answers

for this question, the easiest way is to find the decimal for each fraction.
so you can say:
-5/8 = -0.6
-7/9 = -0.7
-4/5 = -0.8
-3/7 - -0.4
and because they are all negative numbers so from the least to the greatest will be:
-4/5 < -7/9 < -5/8 < -3/7
so the answer is B :)))
i hope this is helpful
have a nice day

Answer:

Step-by-step explanation:

you have to find the common denominator or turn it into a decimal

Finding the Volume of Composite FiguresA rectangular prism and a triangular prism. The rectangular prism has a length of 12 meters, width of 30 meters, and height of 10 meters. The triangular prism has a triangular base with base 12 meters and height 4 meters. The prism has a height of 10 meters.

A modern art museum has the dimensions shown in the figure.

What is the total amount of space inside the museum?

square meters