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Nimfa-mama [501]
3 years ago
11

Which one is the correct answer?

Mathematics
1 answer:
Igoryamba3 years ago
5 0
B. because if u add 2.5 and 3 together it's 5.5 then times 4 because the fraction
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Use the method of elimination to solve the pair of simultaneous equation 3a=2b+1,3b=5a-3​
BARSIC [14]

Answer:

       a = 3

        b = 4

Step-by-step explanation:

Simultaneous equation

              3a = 2b + 1

         3a - 2b = 1  ------------------(I)

               3b  = 5a - 3

       -5a + 3b = -3 --------------(II)

Multiply equation (I) by 3  & equation (II) by  2 and then add. So, now 'b' will be eliminated and we can find the value of 'a'.

(I)*3       9a - 6b = 3

(II)*2    <u>-10a + 6b = -6</u>  {Now add}

            -a            = -3

                       a = -3/(-1)

        \sf \boxed{a  = 3}

Plugin a = 3 in equation (I)

              3*3 - 2b = 1

                  9 - 2b = 1

                     -2b  = 1 - 9   {Subtracting 9 from both sides}

                      -2b = - 8        

                         b = (-8)/(-2)         {Dividing both sides by (-2_}

          \sf \boxed{b = 4}                      

7 0
2 years ago
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Answer:

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3 years ago
Which of the following expressions has the greatest value?
zimovet [89]
I believe the answer is B: 3 + 7 + (-10).
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Help please asappp!!!!!!!!!!!!!!!!!!
mario62 [17]

I think the answer is B! I hope that helps!!!!!

BRAINLY would be appreciated❤️

4 0
3 years ago
please help :( please help :( please help :( please help :( please help :( please help :( please help :( ​
bixtya [17]

Answer:

1. 3*8*10=240

2.6*6*12=432

Step-by-step explanation:

Hope that helps

Use l*w*h

4 0
3 years ago
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