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Papessa [141]
3 years ago
13

3(2b-4a+3c) if a =1/2,b=3, and c=-2/3

Mathematics
2 answers:
valentina_108 [34]3 years ago
8 0
This is just substitution. so 3(2(3)-4(1/2)+3(-2/3)= 3(6-2-2)= 3(2) = 6. Basically you plug in the values they gave you for the variables and then just solve one step at a time
STatiana [176]3 years ago
4 0
<span>3(2(3)-4(1/2)+3(-2/3)= 3(6-2-2)= 3(2) = 6. </span>
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Simplify the expression ​
finlep [7]

Answer:

\frac{2*x - 2}{2*x}  - \frac{3*x + 2}{4*x} = \frac{x - 6}{4*x}

Step-by-step explanation:

We have the expression:

\frac{2*x - 2}{2*x}  - \frac{3*x + 2}{4*x}

The first thing we want to do, is to have the same denominator in both equations, then we need to multiply the first term by (2/2), so the denominator becomes 4*x

We will get:

(\frac{2}{2} )\frac{2*x - 2}{2*x}  - \frac{3*x + 2}{4*x} = \frac{4*x - 4}{4*x}  - \frac{3*x + 2}{4*x}

Now we can directly add the terms to get:

\frac{4*x - 4}{4*x}  - \frac{3*x + 2}{4*x} = \frac{4*x - 4 - 3*x - 2}{4*x}  = \frac{x - 6}{4*x}

We can't simplify this anymore

3 0
3 years ago
Safari 11:02 AM Fri Apr 17
mestny [16]

Answer:

Step-by-step explanation:

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6 0
3 years ago
Hi please help......​
Scrat [10]

Answer:

9/20

Step-by-step explanation:

45%=45/100

hope this helps

7 0
2 years ago
três amigos levaram figurinhas para trocar na escola.Fernando levou 10 mas em média foram levadas 11 figurinhas por pessoa quant
kicyunya [14]

We are given

Number of person took cards =3

Average number of cards taken = 11 per person

so, we can find total number of cards

Total number of cards= (average number of cards)*(number of persons)

Total number of cards is

=3\times 11

=33

Fernando took 10

so,

Fernando card +other two cards =33

10 +other two cards =33

Other two cards =23..............Answer

6 0
3 years ago
If a solid cube has a density of 6.3 grams per millimeter and a volume of 30 millimeters, how much is it's mass?
agasfer [191]

density= mass/volume

mass= densiy x volume

mass= 6.3 g/mm^3 x 30mm^3= 189 g

8 0
3 years ago
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