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sattari [20]
3 years ago
10

two business partners, Ellen and Bob, invested money in their business at a ratio of 3 to 7. Bob invested the greater amount. th

e total amount invested was 200 dollars. how much did each partner invest?
Mathematics
1 answer:
Shtirlitz [24]3 years ago
7 0

Answer:

Ellen invested $60 and Bob invested $140

Step-by-step explanation:

let the two amounts invested by 3x and 7x

(notice 3x : 7x = 3 : 7 )

then 3x + 7x = 200

10x = 200

x = 20

then 3x = 3(20) = 60

and 7x = 7(20) = 140

60+140=200

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Rewrite the 4cm: 8km as a ratio in the form 1: n
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1 : 200000

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What is a equivalent fraction for 28 15/8
ikadub [295]

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3 0
3 years ago
Screenshot of the question attatched. please help me
Law Incorporation [45]
<h2>Rules of Exponents</h2>

There are many rules that apply to operations involving exponents. In this question, we'll need the following:

<h3>The division rule</h3>
  • ⇒ \dfrac{a^n}{a^m}=a^{n-m}

<h2>Solving the Question</h2>

We're given:

z^{21}\div z^7=z^k (solve for k.)

⇒ Rewrite as a fraction:

\dfrac{z^{21}}{z^7}=z^k

⇒ Use the division rule:

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Therefore, the value of <em>k</em> is 14.

<h2>Answer</h2>

<em>k</em> = 14

5 0
1 year ago
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