All categories

3 years ago

How to do 40% of 45.explain your answer

Mathematics

2 answers:

kompoz [17]3 years ago

4 0

Since it is 40% OF 45 you have the whole and percent so multiply 45 by 40 then divide by 100 you get 18

Sergeeva-Olga [200]3 years ago

3 0

First, we have to convert 40% to a decimal:

40% = 0.40

so next we just simply multiply the numbers:

45
x.40

once completed it comes out to be 18. So the answer to your question is 18.

Hope this answer helps! feel free to ask any additional questions :)

You might be interested in

Which equation represents a parabola that opens upward, has a minimum value of 3, and has an axis of symmetry at x= 3?

Ilya [14]

Answer:

$y=(x-3)^2+3$

Step-by-step explanation:

The correct question is

Which equation represents a parabola that opens upward, has a minimum value of y=3, and has an axis of symmetry at x= 3?

Verify each case

case 1) we have

$y=(x+3)^2-6$

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (-3,-6)

The minimum value of y=-6 ----> is not ok

The axis of symmetry is x=-3 ----> is not ok

case 2) we have

$y=(x+3)^2+3$

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (-3,3)

The minimum value of y=3 ----> is ok

The axis of symmetry is x=-3 ----> is not ok

case 3) we have

$y=(x-3)^2-6$

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (3,-6)

The minimum value of y=-6 ----> is not ok

The axis of symmetry is x=3 ----> is ok

case 4) we have

$y=(x-3)^2+3$

This a vertical parabola open upward (the leading coefficient is positive)---> is ok

The vertex represent a minimum ---> is ok

The vertex is the point (3,3)

The minimum value of y=3 ----> is ok

The axis of symmetry is x=3 ----> is ok

6 0

3 years ago

Find the surface area of the pyramid shown to the nearest whole number. The base is a regular hexagon.

Fiesta28 [93]

The surface area of the pyramid will be given as follows:
Area of triangles:
A=1/2×base×height
A=1/2×12×18
A=108 m²
Area of 6 triangles is given by:
A=108×6=648 m²

Area of the hexagon:
A=6×1/2×12×6√3
A=374.123m²

Total surface area:
SA=648+374.123
SA=1022.123 m²~1022 m²

Answer: C] 1022 m²

8 0

3 years ago

Ellie practices piano 2/3 h per day, several days each week. She practiced piano 32 2/3 hours during the summer. What equation c

natima [27]

The answer should be 32 2/3. Sorry I'm late, but hope this helps.

5 0

2 years ago

Find a counter example to following bad definition: a square has four right angles

Schach [20]

a flat figure with 4 equal straight sides and four right angles

5 0

3 years ago