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3 years ago

The number of pages that Ana, Hillary, Roger, and Juan can read in a day is shown below: Ana read 15% of her 46-page book.

Mathematics

2 answers:

dolphi86 [110]3 years ago

8 0

The answer is D. Juan

nevsk [136]3 years ago

8 0

Answer:

D. Juan

Step-by-step explanation:

The reason is, 69 x 14% = 9.66

all of the rest are less than 9.66.

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lozanna [386]

Answer:

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3 years ago

Someone please help me w this standard form question

svp [43]

Answer:

2.4 × 10⁶

Step-by-step explanation:

Given:

$\sf x=3.8 \times 10^5$

$\sf y=5.9 \times 10^4$

To calculate the value of R, substitute the given values into the given formula:

$\begin{aligned}\sf R & = \sf \dfrac{x^2}{y}\\\\ \implies \sf R& = \sf \dfrac{(3.8 \times 10^5)^2}{5.9 \times 10^4}\\\\& = \sf \dfrac{3.8^2 \times (10^5)^2}{5.9 \times 10^4}\\\\& = \sf \dfrac{14.44 \times 10^{10}}{5.9 \times 10^4}\\\\& = \sf \dfrac{14.44}{5.9} \times \dfrac{10^{10}}{10^4}\\\\& = \sf 2.4474... \times 10^{(10-4)}\\\\& = \sf 2.4474... \times 10^6\\\\\end{aligned}$

Therefore, the value of R to 1 decimal place is 2.4 × 10⁶

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<u>Exponent Rules used</u>

$(a^b)^c=a^{bc}$

${a^b}{a^c}=a^{b-c}$

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2 years ago

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