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Natalka [10]
3 years ago
11

If (3)x+y = 81 and (81)x-y = 3 find the values of x and y.

Mathematics
1 answer:
ratelena [41]3 years ago
7 0
You have to isolate the variables meaning you have to do the opposite of multiply 81 you have to divide 3/81: x and y for both sides will be the same thing
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A total of 2 yards of frabric is used to make 5 identical pillows. How much fabric is used for each pillow?
S_A_V [24]
2 divided by 5 is .4
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3 years ago
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If f(x) = x2 – 3, then f(-1) is equivalent<br> to
zloy xaker [14]

Answer:

negative 5. or -5

Step-by-step explanation:

f(-1)= (-1)2-3

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Find the values of the missing angles<br><br> HELP PLEASE DO ANY! I’ll give you brilliance
yan [13]

Answer:

1) x = 42 ; y = 42

2) x = 72 ; y = 48 ; z = 60

Step-by-step explanation:

1)

x + 42 + 96 = 180

x + 138 = 180

x = 42

y + 42 + 96 = 180

y + 138 = 180

y = 42

2)

x + 108 = 180

x = 72

y + 132 = 180

y = 48

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3 0
2 years ago
Help<br> Cannot use the tactic of moving the variables in my school<br> -5-3w=7w
nevsk [136]
Collect like terms
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2 years ago
Help me please asap
abruzzese [7]

Answer:

So the right answer is none

Step-by-step explanation:

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so none of those are bigger then -2,33 and x is bigger then -2,33

3 0
2 years ago
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