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Andru [333]
3 years ago
12

20 if u get it right

Mathematics
1 answer:
Sholpan [36]3 years ago
3 0

Step-by-step explanation:

hey there....I only knew the last question

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The system of equations cx + 3y = c – 3 and 12x + cy = c will have infinitely many solutions if the value of c is
irinina [24]

Answer:

6

Step-by-step explanation:

1. re-write the given system:

cx+3y=c-3; => y= -cx/3 +(c-3)/3

12x+cy=c; => y= -12x/c+c/12

2. according the condition the rule for the parallel graphs is:

-c/3= -12/c

3. to calculate the unknown 'c':

c²=36; ⇔c=±6

7 0
3 years ago
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I am having trouble learning how to convert an equation to standard form can someone please explain this to me? ( my teacher ten
Molodets [167]
First, you have to simplify the equation:
y+3 = 3(x+5)
y+3=3x+15
So you multiply what’s inside the brackets (x+5) by the factor (3). So 3•x=3x, 3•5=15.
Then you rearrange the equation as necessary to convert it into standard form, which is Ax + By = C
3 0
3 years ago
Evaluate 7³=7•7•7=343
ivanzaharov [21]
343=343=343
I am pretty sure this is the answer to the problem
4 0
3 years ago
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A + (b-4) when a-24 and b-7
lara31 [8.8K]

Answer:

a=24

b=7

now

24+(7-4)

24+3

27

so the answer is 27

5 0
3 years ago
If the interest earned on an account after 7 years at 6% is $1785 ,what is the initial value
gayaneshka [121]

Answer:

$4250

Step-by-step explanation:

i = prt

or

p = i / rt

where,

i = $1,785

r = 6% = 0.06

t = 7 years

So, we can calculate initial vale by putting the values in above equation;

p = $1,785 / (0.06 x 7)

p = $1,785 / 0.42

p = $4,250

Hence the initial value will be $4250

8 0
3 years ago
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