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Aleks [24]
3 years ago
14

A square has an area of approximately 750 square feet. Which of the following would be the most reasonable estimate of the lengt

h of a side of the square?
A.between 20 and 21 feet
B.between 24 and 25 feet
C.between 27 and 28 feet
D.between 30 and 31 feet
Mathematics
2 answers:
qwelly [4]3 years ago
5 0

Answer:

c

Step-by-step explanation:

hi yeeeeeeeeeeeeeeeeeettttttttttttt

Sergeeva-Olga [200]3 years ago
5 0

Answer:

C

Step-by-step explanation:

A= l x w

A = 27 x 27 = 729

A = 28 x 28 = 784

so C is the answer

hope this helps if it is wrong i apologize

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A bag contains 40 marbles. The probability of selecting a red marble at random is 1/5. How many red marbles are in the bag?
goblinko [34]

Answer:

8 red marbles.

Step-by-step explanation:

All together we have 40 marbles. The fraction of marbles that are red is 1/5 which means that we should divide the total number of marbles, which is 40 by the denominator ( Bottom number of fraction ) 5 so that we get the number of groups that have 1 red marble in them. In this case we have 8 groups.

40/5=8

You always divide by the denominator ( Bottom number of fraction ) first and then you multiply your answer by the numerator ( Top number of fraction ) .

If each group has 1 red marble in it and we have 8 groups, it means that we have 8 red marbles in the bag.

1 * 8 = 8 red marbles in the bag

If the numerator (number above the fraction line) was more than one, then this would mean that we have more than 1 marble in each group of marbles.

Example:

If we had 3/5 we would have 3 marbles in each group of marbles. This means that instead of doing 1 * 8 we would have to do 3 * 8 = 24. We would have 24 red marbles in the bag.

Easy and quick way if you do not need the explanation:

Another way we could do this is by simply multiplying the fraction ( 1/5 ) by the total number of marbles ( 40 ). This would still give us an answer of 8 red marbles in the bag. 40/5=8, 8*1=8

7 0
3 years ago
Quizziz help 9th grade please thx
astraxan [27]
I. H o p e It. R I g h t.


(x - 9) (x-3)





3 0
3 years ago
Amanda runs a consultancy firm. For a given year, her income from services was $30,700. Direct expenses incurred by her for the
defon
The answer is C 
30700-10500-500=19700 thats how much she walks away with. 
Also can i have brainliest answer if i am correct which i believe i am. 
8 0
3 years ago
Read 2 more answers
Please help!! There is a photo of my question
goldfiish [28.3K]

Answer:

0.03A + 0.03B = 800

A + B = 20000

Step-by-step explanation:

Let one part A of the total money invested with 3% interest = $A

Therefore, other part B of the money invested with 5% interest = $B

Interest = Principal amount × Rate of interest × Duration of investment

If the duration is 1 year,

Interest = Principal amount × Rate of interest

Return on part A = A × 0.03

Return on part B = B × 0.05

Total return = $800

So the equations will be,

0.03A + 0.03B = 800 -------(1)

Since, total money invested = $20000

Equation will be,

A + B = 20000 -------(2)

6 0
2 years ago
Evaluate the expression for<br> X= 5, y = 1:<br> X + 15<br> y + 1
lapo4ka [179]

Answer:

20

2

Step-by-step explanation:

lets substitute the value of x and y in the equations:

5 + 15 =20

1 + 1 =2

7 0
3 years ago
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