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REY [17]
2 years ago
15

What is the best estimate of 42% of 756? a)320 b)240 c)400 d)400

Mathematics
2 answers:
Akimi4 [234]2 years ago
7 0

Answer:

Option a is correct

300 is the best estimate of 42% of 756

Step-by-step explanation:

To find the best estimate of 42% of 756.

First find one percent, which is where you can move the decimal 2 places to the left i.e,

giving you the number  7.56

Now, multiply 42 by 7.56 i.e,

42 \times 7.56 = 317.52

therefore, the best estimate of 42% of 756 is, 300

nataly862011 [7]2 years ago
4 0
320 i believe... the original answer was 317.52
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Use the Empirical Rule to answer each question.
Oliga [24]

Step-by-step explanation:

(a)

the probability of parcels weighing 35oz or less is

0.841

the probability of parcels weighing 14oz or less is

0.023

the probability of parcels weighing between 14 and 35oz is the probabilty of 35oz minus the probability of 14oz

0.841 - 0.023 = 0.818

the percentage is the probability × 100 = 81.8%

(b)

the probability of parcels weighing more than 49oz is 1 minus the probability to weigh less than 49oz.

the probability to weigh less than 49oz is

0.99865

so, the probability to weigh more than 49oz is

1 - 0.99865 = 0.00135

the percentage is again probability×100 = 0.14%

7 0
2 years ago
What is an expression to represent the equation
Tatiana [17]

Answer:

8 + \frac{x}{4}

Step-by-step explanation:

I'm assuming you want an answer to the top section of the question.

We can start with 8.

    8

When a problem asks for the sum, it's looking for addition, so we use the + sign.

    8 +

The problem says "a number," so let's represent that with x. Basically, x just means a number we don't know.

    8 + x

The "number" is divided by 4, so we'll just put x/4 as our second term.

   8 + \frac{x}{4}

7 0
3 years ago
Write the fractions in order starting with the smallest 9/8 , 5/4 , 19/16, 3/2.​
Kipish [7]

Answer:

9/18, 19/16, 5/4, 3/2

Step-by-step explanation:

3 0
2 years ago
What are the solutions to the equation 2x^2 - 2x - 12 = 0?
pantera1 [17]
2(x)^2 - 2(x) - 12 = ?
  
2(x)^2 - 2(x) - 12

(x)^2 - 6 - x

Multiply ↪1 (-6) = -6

1 + -6 = -5 , right?

-3 + 2 = -1, right?

After we have pulled out the like terms we have to add/subtract!   x(x) - 3

Search for the common denominator
2(x) - 3

You can add up 4 for your terms
x + 2 (x - 3)

Make sure you solve this↪ 2 = 0

x + 2 = ?
x + 2 = 0
We have found the first; x = -2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Since, this one has a single variable, I'll make the step easier and quicker

Solve this part ↪    x-3 = 0 
If we had the number 3 to your sides we would have found the outcome of the next x
                    
So, the second x is 3 

So, therefore your answer would have to be x =-2 ; x = 3 (most likely option C.)



5 0
3 years ago
Y
Brums [2.3K]

Step-by-step explanation:

to my guess the rule of a reflection will be about the x-axis since only the values of y have changed

7 0
2 years ago
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