90. To get to this answer, you would multiply 6 X 10 and 3 X 10. You would then add the products: 60 + 30 = 90.
I would do 10x10-8x8 which is 36 which is 6 times it self
So A=6 in.
The number of squares tiles that will be required to floor the rectangular store is approximately 1284 tiles
<h3>How to find the number of tiles used for the rectangular floor?</h3>
The rectangular store measures 6.5m by 7.9m.
Therefore,
area of a rectangle = lw
where
Therefore,
area of a rectangle = 6.5 × 7.9
area of a rectangle = 51.35 m²
The square tiles used for the floor is 20cm each. Therefore,
20 cm = 0.2m
hence
area of the square tile = 0.2² = 0.04 m²
number of tiles = 51.35 / 0.04 = 1283.5
number of tiles ≈ 1284 tiles
learn more on rectangle here:brainly.com/question/1040195
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Answer:
It is decreased by 76 percent.
Step-by-step explanation:
The key skills are percentage and multiplication with percentages.
- You first have to get a variable. Let's use the letter o as a variable (o For orginial cost).
- Then we have to find out how much it is when o is decreased by 40 percent. 100% (or the whole) - 40% is 60%. Therefore, with a 40 percent decrease, It would be 60% of o, or 0.6o.
- Then, if it decreases by 60 percent, the final number would be 100% - 60 % or 40% of 0.6o. This means itbwould be 0.4 × 0.6o which is 0.24o
- 0.24o means that o is 24 percent of its orginial number, which is 100% - 24% or a 76 percent decrease.
<u>Hope</u><u> </u><u>you</u><u> </u><u>understood</u><u> </u><u>and</u><u> </u><u>have</u><u> </u><u>a</u><u> </u><u>nice</u><u> </u><u>day</u><u>!</u>
