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sergij07 [2.7K]
3 years ago
6

Jamie says the value of the expression 1.43 x (19/37) is close to 0.75. Does Jamie's estimate seem reasonable? Explain. *​

Mathematics
1 answer:
erastovalidia [21]3 years ago
5 0

Answer:

Jamie's estimate is correct, since the result is 2.1% less than the estimated number.

Step-by-step explanation:

Given that Jamie says the value of the expression 1.43 x (19/37) is close to 0.75, to determine if Jamie's estimate seems reasonable the following calculation must be performed:

1.43 x (19/37) = X

1.43 x 0.513 = X

0.7343 = X

0.75 = 100

0.7343 = X

0.7343 x 100 / 0.75 = X

97.9 = X

Therefore, Jamie's estimate is correct, since the result is 2.1% less than the estimated number.

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Find the TWO integers whos product is -12 and whose sum is 1<br>​
Deffense [45]

Answer:

\rm Numbers = 4 \ and \ -3.

Step-by-step explanation:

Given :-

The sum of two numbers is 1 .

The product of the nos . is 12 .

And we need to find out the numbers. So let us take ,

First number be x

Second number be 1-x .

According to first condition :-

\rm\implies 1st \ number * 2nd \ number= -12\\\\\rm\implies x(1-x)=-12\\\\\rm\implies x - x^2=-12\\\\\rm\implies x^2-x-12=0\\\\\rm\implies x^2-4x+3x-12=0\\\\\rm\implies x(x-4)+3(x-4)=0\\\\\rm\implies (x-4)(x+3)=0\\\\\rm\implies\boxed{\red{\rm x = 4 , -3 }}

Hence the numbers are 4 and -3

4 0
3 years ago
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10 In 0.5 seconds, a projectile goes from 0 to 300 m/s. What is the acceleration of the projectile?
vredina [299]

Answer: 600 m/s^2

Step-by-step explanation:

Use the first kinematic equation

V_f=V_i+at\\300=0+a(0.5)\\a=600m/s^2

3 0
3 years ago
2.1 divided by 12.18 using long division please show work I need this right now please
yanalaym [24]

Answer:

2.1 divided by 12.8=0.172413

Step-by-step explanation:

0 0 0. 1 7 2 4 1 3

1 2 1 8 2 1 0. 0 0 0 0 0 0

     − 0                

       2 1              

     −   0              

       2 1 0            

     −     0            

       2 1 0 0          

     − 1 2 1 8          

         8 8 2 0        

       − 8 5 2 6        

           2 9 4 0      

         − 2 4 3 6      

             5 0 4 0    

           − 4 8 7 2    

               1 6 8 0  

             − 1 2 1 8  

                 4 6 2 0

               − 3 6 5 4

                   9 6 6

6 0
2 years ago
What is the common difference for this arithmetic sequence?<br> 31, 48, 65, 82, ...
sergejj [24]

Answer:

d = 17

Step-by-step explanation:

The given arithmetic sequence is :

31, 48, 65, 82, ...

We need to find the common difference for this sequence.

First term, a₁ = 31

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Common difference = a₂-a₁

= 48-31

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So, the common difference for this arithmetic sequence is equal to 17.

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15% off means the sale price is 85% of the original price.


Divide the sale price by the percent of original price:


3825/0.85 = 4,500


answer : £4,500

7 0
2 years ago
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