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jarptica [38.1K]
3 years ago
7

What is the value 1/2 ×3+5.2y when x=2 and y=3

Mathematics
2 answers:
zlopas [31]3 years ago
8 0
18.6 because one half times 2 Is just 1. 1 times 3 is 3. 5.2 times 3 equals 15.6. Then add 15.6 and 3 which gives you 18.6
Hatshy [7]3 years ago
4 0
The answer is 18.6, because when multiplying all the variables with the coefficients the equation is 1/2*6+15.6, 6 turns into 3 because it is halved and the rest of the equation stays the same so the new equation now is 3+15.6 and you simply add them and it is 18.6.
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2. Solve x - 19 < 81​
vovikov84 [41]
The answer would be X =90
5 0
4 years ago
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See the pic below please! AND SHOW WORK!
irinina [24]

Well I don't know !
Let's check out the choices:

A).    3a - 4b = 21,  a=0, b=7

         3(0) - 4(7) = 21

             0  -  28  = 21    Nope.  That's not true.


B).  3a - 4b = 21,  a=-3,  b=2

     3(-3) - 4(-2) = 21

       -9    +  8  = 21

             -1    = 21      Nope.  That's not right.


C).  3a - 4b = 21,    a=-2,  b=-3

      3(-2) - 4(-3) = 21

         -6  + 12  = 21

                 6  =  21          Nope.  That's not it.

Only one choice left.
This one had better be it:

D).  3a - 4b = 21,    a=7,  b=0

       3(7) - 4(0) = 21

         21 -  0    = 21

               21  =  21            Yay !   That's it !
 
7 0
3 years ago
Read 2 more answers
Find the surface area of a rectangular prism having dimensions 3 feet x 4 feet x 5 feet?
Serjik [45]
The answer is 60 ft

You do L × W ×H

which is 3 × 4 × 5 = 60
7 0
4 years ago
What is the value of -3⁶ +(-4+7)(2)?<br>​
svp [43]

-3^6 = -729

-729 +(-4+7)(2)

-729 +(3)(2)

-729 + 6

-723

<em>hope it helps :)</em>

(ps: the result of -3^6 is not +729, the expression that would give this result is (-3)^6

6 0
3 years ago
⚠️Help Please It’s Due Today!! ⚠️
Dennis_Churaev [7]

Answer:

0.15893 is irrational

0.7 is rational

5 1/25 is rational

-17 is rational

7 0
3 years ago
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