[(21 + 6) − 3^2] ÷ 9 ⋅ 2=[(27) − 9] ÷ 9 ⋅ 2
=18 ÷ 9 ⋅ 2
= 2 . 2
= 4
Step-by-step explanation:
hi I have answered ur question
Answer:
We need 4 topsoils
Step-by-step explanation:
I think your question is missed of key information that is the area of the flower bed, allow me to add in and hope it will fit the original one.
Please have a look at the attached photo.
My answer:
The flower bed is a triangle with its height is 5 cm and the base length is 12 cm, so we need to find out the area of it:
- S = Height*the base length = 5 * 12 = 60
So the bags of topsoil does Tom need to cover his flower bed is:
=
= 4
We need 4 topsoils
The product has decreased by 80 %
<em><u>Solution:</u></em>
The product of the original numbers: xy
One number is decreased by 75 %
Let x be the number decreased by 75 %
new number = x - 75 % of x

Another number is decreased by 20 %
Let y be the number decreased by 20 %
new number = y - 20 % of y

<em><u>Now the product is given as:</u></em>

<em><u>Now we have to find the percent decreased</u></em>
Subtract new product and original product and then divide by original product . Multiply the result by 100 to get percentage

Here negative sign denotes decrease
Thus the product has decreased by 80 %