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Over [174]
3 years ago
9

Solve the equation and check the solution. a + 2.4 = 7.8

Mathematics
2 answers:
Alika [10]3 years ago
8 0
A+2.4=7.8
a=-5.4
5.4+2.4=7.8
Alla [95]3 years ago
3 0
A+2.4=7.8
-2.4     -2.4
       a=5.4
Check: 5.4+2.4=
                 7.8
              
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A basketball game is 45 minutes long. 20 minutes have already been played. write an equation that represents how many minutes m
snow_lady [41]
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4 0
3 years ago
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zavuch27 [327]

V=lwh

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7 0
3 years ago
Elimination method<br> 4x-2y=48<br> 2x+6y=-18
yulyashka [42]
4x-2y=48\\ \\ 2x+6y=-18

First we'll multiply the second equation by -2


-2\cdot (2x+6y)=-2\cdot -18\\ \\ -4x-12y=36

Now let's add the new equation and the first one.

(4x-2y)+(-4x-12y)=48+36\\ \\ 4x-4x-2y-12y=48+36\\ \\ -14y=84\\ \\ y=\frac { 84 }{ -14 } \\ \\ y=-6

We found y's value. We'll plug it in one of the equations to find x's value.

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(9, -6)


4 0
3 years ago
Read 2 more answers
8(7 + 23) = 8(7) + 8(?)
34kurt
Answer: 23

When using multiplication with brackets, you multiply the number by all the numbers within the bracket before adding them together.

Therefore when it is 8(7 + 23) it basically means: 8(7) + 8(23)
7 0
3 years ago
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natta225 [31]

Answer:

23

Step-by-step explanation:

got this answer bc bc i told myself 1/5 is one whole ad took 5 out of it and then subtracted 5-60 and then got 55 and after that i subtracted 55-32 and thats how i got my answer of 23

5 0
3 years ago
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