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3 years ago

9

a bag contains 42 cups of dog food your dog eats 2 & a half cups of dog food each day how many days does a bag of dog food l

ast

1 answer:

quester [9]3 years ago

6 0

It takes 16 and a half days for the dog to eat all of the bag

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4 years ago

Work out in a standard form. <br>A) 2.1x 10^-5 ÷7 x 10^-2

EleoNora [17]

$\huge\underline{\underline{\boxed{\mathbb {SOLUTION:}}}}$

<h3>Given:</h3>

▪ $\longrightarrow \sf{\dfrac{2.1 \times {10}^{5} }{7 \times {10}^{ - 2} } }$

First, rewrite the numerator in such a way that the coefficient 2.1 becomes 21:

$\small\longrightarrow \sf{\dfrac{21 \times {10}^{ - 6} }{7 \times {10}^{2} } }$

Divide the coefficient:

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$\small\longrightarrow \sf{3 \times 10^{-4}}$

$\huge\underline{\underline{\boxed{\mathbb {ANSWER:}}}}$

$\large \bm{The \: \: quotient \: \: is \: \: 3 \times {10}^{ - 4} .}$

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