Answer: -3/7
Step-by-step explanation:
-3x + 5x +-3= 4x + 5x
7x=-3
x=-3/7
Answer:
7(4 - x^2)
Step-by-step explanation:
Well you just factor out 7, since that is the GCF. 7(4 - x^2)
Hope this helps
Answer:
420 hg = __4200000___ cg
Step-by-step explanation:
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<span>Los minerales se consideran gemas si son raros , clara y brillante.
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The answer is: [C]: "30%" .
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Explanation:
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Note that: "%" ; or "percent" means "out of 100" ; or "divided by 100" .
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Method 1)
15/50 = ?/ 100 ;
Look at the denominators:
50 * (what value?) = 100 ? ; → "100 ÷ 50 = 2" ;
→ 50 * 2 = 100 ;
So: "15/50 = (15*2)/(50*2) = "30/100" ; which is "30%" .
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Method 2:
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"15/50" = (15÷5) / (50÷5) = 3/10 ;
3/10 = (3*10) / (10*10) = 30/100 ; which is: "30%" .
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Method 3: (slight variation of "Method 2" above):
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"15/50" = (15÷5) / (50÷5) = 3/10 ;
3/10 = 0.3 = 0.30 = (0.30 * 100) % = " 30% " .
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