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antiseptic1488 [7]
1 year ago
10

Expand the brackets and simplify the equation: 8(5 c-2) + 7

Mathematics
2 answers:
valkas [14]1 year ago
5 0
Is this what you are looking for? I hope this helps!

Degger [83]1 year ago
4 0

Answer:

40c-9

Step-by-step explanation:

8(5c-2)+7

40c - 16 + 7

40c -9

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The simple interest formula is A = P(1 + rt) in which A is the total of money after interest, P is your principal (starting) amount, r is the interest rate, and t is the amount of time. 
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<span>For 2), add your interest and principal amount, then plug in your variables to get 676 = 520(1 + 5r). Distribute to get 676 = 520 + 2600r. Subtract 520 from 676 to get 156 = 2600r, then divide both sides by 2600 to get a rate of 0.06, or 6%. 

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The other two problems can be solved using the formula and steps described above. If you still need help with them, leave a comment and I will solve those as well. </span>
8 0
2 years ago
Read 2 more answers
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