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astraxan [27]
3 years ago
8

Put brackets in the calculation below to make it correct. 15 - 4 x 2 + 1 = 3

Mathematics
1 answer:
bagirrra123 [75]3 years ago
3 0
If you put brackets around (2+1), your method of working is: 
1) 15-4*(2+1)=3 
2) 15-4*3=3
3) 15-12=3
You don't need any more brackets, as the BIDMAS (brackets, Indices, division, multiplication, addition, subtraction) rule does the rest of the job for you. 
The answer is therefore: 15-4*(2+1)=3
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Anni [7]
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(8n+5n)/30

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8 0
3 years ago
This is some bull help
slamgirl [31]

To find y you need to insert x into the equation. The equation is y=2x+2, so insert the x on the table to find the y.

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y=2(1)+2=4

y=2(3)+2=8

These follow the equation's rule so it is correct.

Two plot the values of x and y you need to put it in (x,y) then plot it. Then you can check it by using the equation, y=mx+b, the b is the y intercept, so check to see if it starts there, and then check and see if it followings the slope

(-4, -6), (-2, -2), (0, 2), (1, 4), (3, 8)

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8 0
3 years ago
28 1/2% covert the percent to a decimal
rewona [7]

Answer:

0.285

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8 0
3 years ago
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Ganezh [65]
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8 0
3 years ago
Read 2 more answers
3.x + y = 11<br> Y = x + 3
PSYCHO15rus [73]

Answer:

x = 2

Step-by-step explanation:

3.x + y = 11     (eq 1)

Y = x + 3       (eq 2)

sub 2 into 1

3x + x + 3 = 11

4x + 3 = 11

4x = 8

x = 2

4 0
4 years ago
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