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Salsk061 [2.6K]

1 year ago

10

Roscoe is exchanging $ 121 for Euros for his upcoming trip to Germany. If $2 can be exchanged for 1.78 Euros,how many Euros will

Roscoe have?
Define variable
Equation
Solve

1 answer:

olasank [31]1 year ago

6 0

Answer is define variable

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Hope this will help you

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2 years ago

the tens digit of a two digit number is twice the units digit. The sum of the digits is twelve. Find the original number.

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X - tens digit
y - units digit

$x=2y\\
x+y=12\\\\
2y+y=12\\
3y=12\\
y=4\\\\
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3 years ago

Where are white blue and red boat in the Marina three fourths of the boats in the Marina are white for seventh of the remaining

xeze [42]

Answer:

28

Step-by-step explanation:

Here is the complete question used in answering this question :

Three-fourths of the boats in the marina are white. 4/7 of the remaining boats are blue , and the rest are red . If there are 9red boats, how many boats are in the marina?

We first have to determine the fraction of the boats that are red

1 - ( $\frac{3}{4}$ + $\frac{4}{7}$ )

1 - $\frac{21 + 16}{28}$

1 - $\frac{37}{28}$

1 - 1 $\frac{9}{28}$

= 9/28

so, 9/28 of the boats are red

let b represent the total number of boats

9/28 x b = 9

to find b, divide both sides of the equation by 28/9

b = 28

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2 years ago