9/10 is .9
51 subtracted by 6 is 45
45 multiplied by .9 is 50

.9 multiplied by 50 is 45
45 plus 6 is 51

So you missing number would be 50.

Hope this helps!

6 0

3 years ago

Think about how to find the area of a rectangle. A=LW and a triangle 1/2B*H. Create a problem using each formula.

WITCHER [35]

Given expressions:

Area of a rectangle = L W

Area of a triangle = $\frac{1}{2} B H$

Problem;

Create problems using the formula;

Solution:

Problem 1; Find the area of a rectangle whose length is 10cm and the width is half the size of the length?

Given parameters:

Length of rectangle = 10cm

Width of rectangle = $\frac{1}{2}$ x length = $\frac{1}{2}$ x 10 = 5cm

So, the area of the rectangle = 10cm x 5cm = 50cm²

2. A triangle with a base length of 30cm and a height of 2cm will have an area of what?

Given parameters:

base length = 30cm

height = 2cm

Solution:

Area of a triangle = $\frac{1}{2}$ x b x h

Area of a triangle = $\frac{1}{2}$ x 30 x 2 = 30cm²

The area of the triangle will be 30cm²

6 0

3 years ago