We need find the value of "5 times 2/3" using model.
2/3 can be represented by a rectangle in which 2 out of 3 parts are colored.
When we find 5 times 2/3, then the total colored parts are 10
5 times 2/3 is the same that Add 2/3 five times, that is:
5 x 2/3 = 2/3 + 2/3 + 2/3 + 2/3 + 2/3
take into account that the sum of fractions with the same denominators is equal to the sum of the numerators, over the common denominator, as follow:
2/3 + 2/3 + 2/3 + 2/3 + 2/3 = 10/3
The model is shown below:
You can notice that each rectangle has 2 blue parts of the total three parts, that is, 2/3. And due to there are other five rectangles with 2/3 of blue parts, then, you have 5 times 2/3, or 5 x 2/3 = 10/3.
Answer:
A 100 lb person will weight 40 lb on Mars
Step-by-step explanation:
Given:
Weight on Mars directly varies as its weight on earth.
Let weight on Mars be =
Let weight on Earth be =
Its known that:
∝
Thus
where is constant of proportionality.
when , then
thus, we have
dividing both sides by 95.
∴
Thus when ,
would be calculated as
∴ (Answer)
∴ A 100 lb person will weight 40 lb on Mars.
Answer:
She needs to purchase 50 square feet of wood .
Step-by-step explanation:
we can find the number of square feet of wood needed to purchase by finding the area of the table
The area of the table = area of the triangle + area of the rectangle
Area of the triangle:
Area of the triangle =
On substituting the values from the attached figure , we get
Area of the triangle =
Area of the triangle =
Area of the triangle = 10 square feet
Area of the rectangle:
Area of the rectangle = Length X Breadth
On substituting the values from the attached figure , we get
Area of the triangle =
Area of the triangle = 40 square feet
Thus the area of the table = 10 + 40 = 50 square feet
Answer:
=> the greatest integer is 2
the smallest integer is -2