2 years ago

I need help with this

Mathematics

2 answers:

Harrizon [31]2 years ago

4 0

$105 \div 8.7$

ivolga24 [154]2 years ago

4 0

Answer:

105/8.7.............

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Alexis washes 10 1/2 windows in 3/4 hours. At this rate, how many windows can she wash in one hour?

Zepler [3.9K]

Alexis can wash a total of 14 windows in 1 hour

<h3><u>Solution:</u></h3>

Given that Alexis washes $10\frac{1}{2}$ windows in $\frac{3}{4}$ hours

<u><em>To find: </em></u>number of windows washed in one hour

To simplify the calculations we will convert the given mixed fraction to improper fraction

$\begin{array}{l}{=10 \frac{1}{2}} \\\\ {=\frac{2 \times 10+1}{2}} \\\\ {=\frac{21}{2}=10.5}\end{array}$

Hence, to wash 10.5 windows, Alexis takes 0.75 hours

Let "n" be the number of windows washed in 1 hour

10.5 windows ⇒ 0.75 hours

"n" windows ⇒ 1 hour

By cross-multiplication we get,

$n \times 0.75 = 10.5 \times 1$

$n = \frac{10.5}{0.75} \\\\n = 14$

Thus Alexis can wash 14 windows in one hour

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3 years ago

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2 years ago

How do you solve (5^{2} - 1) ÷ 6

posledela

$( {5}^{2} - 1) \div 6 =$

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Note:

Do the square first, and then you do mathematic operation between the parentheses. And, then do the

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Thank you.

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3 years ago

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Step-by-step explanation:

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