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NikAS [45]
2 years ago
5

Which expression is not equivalent to others? Explain.

Mathematics
1 answer:
slega [8]2 years ago
6 0
B. This is the answer because it is not equivalent to anything else, and the answer simplified is: -18.
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2x+3y=9<br> 2x+y=7<br> simultaneous equation
Marat540 [252]

Answer:

x=3 and y=1

Step-by-step explanation:

subtract equation 2 from 1

then (2x+3y) -(2x+y) =9-7

2x-2x+3y-y =2

2y=2 therefore y=1

substitute y value in 2x+y=7

2x+1=7

2x=7-1

2x=6

x=3

3 0
3 years ago
How do you write 39/50 as a percentage?
Allushta [10]
We can convert the fraction to a denominator of 100, since percents are parts of 100.

39 * 2 = 78
50 * 2 = 100

So we have 78/100 or 78%
4 0
3 years ago
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Pls help me with this
ValentinkaMS [17]
I don’t see anything
6 0
2 years ago
C(25,10)<br> Find permutation and combination
Verizon [17]

C(25,10)= 3268760

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6 0
2 years ago
In circle C, r = 32 units.
vlabodo [156]
Probably 2561 but since area equal r^2 I thought it would be 3217
5 0
3 years ago
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