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Mama L [17]
3 years ago
13

On a map with a scale of 1cm = 15 km, two towns are 7.5 cm apart. How far apart are they in real life?

Mathematics
1 answer:
Nataly [62]3 years ago
6 0

Answer:

112.5 km apart

Step-by-step explanation:

Multiply 7.5 by 15:

7.5(15)

= 112.5

So, in real life, they are 112.5 km apart

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\bf \begin{array}{lcccl}&#10;&\stackrel{gallons}{quantity}&\stackrel{\textit{\% of bleach}}{amount}&\stackrel{\textit{gallons of bleach}}{amount}\\&#10;&------&------&------\\&#10;\textit{pure water}&x&0.00&0x\\&#10;\textit{6\% solution}&5&0.06&0.3\\&#10;-----&------&------&------\\&#10;mixture&y&0.04&0.04y&#10;\end{array}&#10;\\\\\\&#10;\begin{cases}&#10;x+5=\boxed{y}\\&#10;0x+0.3=0.04y\\&#10;---------\\&#10;0.3=0.04\left( \boxed{x+5} \right)&#10;\end{cases}&#10;\\\\\\&#10;0.3=0.04x+0.2\implies 0.1=0.04x\implies \cfrac{0.1}{0.04}=x\implies 2.5=x
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