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katovenus [111]
3 years ago
11

2a-3,when a=47m+5,when m=3​

Mathematics
2 answers:
antiseptic1488 [7]3 years ago
7 0
2a-3 when a=4
Now replace a with 4 in 2a-3
So 2*4-3=8-3=5
Similarly, solve the second one
Ronch [10]3 years ago
3 0
2 times 4 is 8 subtract 3 and you have 5
7 times 3 is 21 plus 5 is 26
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cestrela7 [59]

Answer:

$80 was on the gift card to begin with

Step-by-step explanation:

Let the initial money be x

Peter spent (1/2)*x

Peter added 10

<em>Before adding more money on the gift card Peter had x -(1/2)x left on the gift card which is (1/2)x</em>

<em>After loading more money Peter had (1/2)x + 10</em>

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Help please
lisabon 2012 [21]
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3 0
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Answer:

-180^{\circ}

Step-by-step explanation:

Lines form 180 degrees on either side. The negative sign simply implies direction (clockwise instead of counter-clockwise), which is negligible as 180 is exactly half of 360 so you'd form the same line.

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