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Ad libitum [116K]
3 years ago
7

Pls help thank you. Find the value of the expression use estimation to check your answer ​

Mathematics
1 answer:
RoseWind [281]3 years ago
8 0

Answer:

2.) 2703

4.) 9

Step-by-step explanation:

2.)

5327 - 2624 = ?

We subtract from left to right to get;

(7 - 4 = 3) then (2 - 2 = 0) then carrying  1 from 5, (13 - 6 = 7) and (4 - 2 = 2)

So writing the answer;

2 then 7 then 0 then 3

i.e Answer = 2703

4.)

648 ÷ 72 = ?

72 × 10 = 720

So we must multiply 72 by a number less than 10 since 720 > 648

We should look for a number such that 2 in 72 times the number should give an answer with 8 in the end.

Such a number can be 9;

Manually multiplying 72 and 9 we get 648 and we are right!

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A square with an area of 196 ft2 is reduced by a factor of 1/4. How long the new sides of the square?
soldier1979 [14.2K]

Answer:

49

Step-by-step explanation:

<h2><u>Lesson : Reducing by factors:</u></h2><h2><u /></h2>

Given :

196ft^2

Reduced * factor * of * \frac{1}{4}

When you have to reduce a number by a certain factor, you must divide the area with the amount that it is reducing from, therefore,

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49

5 0
3 years ago
Suzanne bought a sweater at the sale price of $25. The original cost of the sweater was $40. What percent represents that discou
Blizzard [7]
15/40 x 100 = 37.5
equation for percent decrease is diiference/original x 100.
5 0
3 years ago
A + b·c = a + c·b is an example of the associative property.
muminat

Answer:

yes , This is an example of the associative property.

Step-by-step explanation:

8 0
2 years ago
A Chinese restaurant offers buffet takeout for $4.99 per pound. How much does your takeout meal cost?
Degger [83]

Answer:

$7.68

Step-by-step explanation:

4.99/0.65 = $7.68

Hope it helps!

4 0
2 years ago
HELP<br>8 Prove that 8^6+4^11 is divisible by 17. Answer __*17
Marina CMI [18]

Answer:

<u>262,144</u> goes in the blank

Step-by-step explanation:

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4,456,448 ÷ 17 = 262,144

8 0
2 years ago
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