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Ivahew [28]
3 years ago
9

X - Y =4 - 2x+y=18 Linnear system

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
8 0

there is no answer to this  so i can't help you.?

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In a class of 20 students, 40% are boys. 25% of the boys and 50% of the girls wear glasses. How many students wear glasses?
fredd [130]
Calcualate 40% (0.40) times 20 to get that there are 8 boys in the class. The rest must be girls, so 20 - 8 gives you 12 girls. 25% (0.25) times the 8 boys gives you that 2 of the boys wear glasses. 50% (0.5) times the 12 girls tives you that 6 girls wear glasses. Add together the 2 boys and the 6 girls that wear glasses to get that a total of 8 students wear glasses.
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(x^2-7x)^2+4(x^2-7x)-96 (x 2 −7x) 2 +4(x 2 −7x)−96
natita [175]

Answer:

answer...

Step-by-step explanation:

This is the answer.

6 0
3 years ago
I need help and im dumb
Dahasolnce [82]
D he doesn't care about his family well being
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Consider the mechanism. Step 1: 2 A − ⇀ ↽ − B + C 2A↽−−⇀B+C equilibrium Step 2: B + D ⟶ E B+D⟶E slow Overall: 2 A + D ⟶ C + E 2A
gulaghasi [49]

Step-by-step explanation:

Below is an attachment containing the solution .

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4 years ago
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