What is 75.2% of 130

1 answer:

7 0

$Method\ \#1:\\\\p\%=\dfrac{p}{100}\\\\75.2\%=\dfrac{75.2}{100}=0.752\\\\75.2\%\ of\ 130\ is\ 0.752\cdot130=\boxed{97.76}\\---------------------------\\\\Method\ \#2:\\\\\begin{array}{ccc}100\%&-&130\\\\75.2\%&-&x\end{array}\qquad\text{cross multiply}\\\\100x=(75.2)(130)\\\\100x=9776\qquad\text{divide both sides by 100}\\\\\boxed{x=97.76}$

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Please help differentiate this!!!!!!!!!

vlada-n [284]

$\bf h=20ln(3t+2)+30\\\\
-------------------------------\\\\
\boxed{a}\\\\
\stackrel{0~years}{t=0}\qquad h=20ln[3(0)+2]+30\implies h=20ln(2)+30
\\\\\\
h\approx 43.86
\\\\\\
\boxed{b}\\\\
\stackrel{1~meter}{h=100}\qquad 100=20ln(3t+2)+30\implies 70=20ln(3t+2)
\\\\\\
\cfrac{70}{20}=ln(3t+2)\implies \stackrel{\textit{log cancellation rule}}{e^{\frac{7}{2}}=e^{ln(3t+2)}}\implies e^{\frac{7}{2}}=3t+2
\\\\\\
e^{\frac{7}{2}}-2=3t\implies \cfrac{e^{\frac{7}{2}}-2}{3}=t\implies 10.371817\approx t$

$\bf \boxed{c}\\\\
\cfrac{dh}{dt}=20\left(\cfrac{1}{3t+2}\cdot 3 \right)+0\implies \cfrac{dh}{dt}=20\left(\cfrac{3}{3t+2} \right)\\\\\\ \cfrac{dh}{dt}=\cfrac{60}{3t+2}
\\\\\\
\left. \cfrac{dh}{dt} \right|_{3}\implies \cfrac{60}{3(3)+2}\implies \cfrac{60}{11}
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\left. \cfrac{dh}{dt} \right|_{10}\implies \cfrac{60}{3(10)+2}\implies \cfrac{15}{8}$

5 0

3 years ago

Read 2 more answers

What 7 coins can you use to get $0.77

Korvikt [17]

3 quarters and 2 pennies.3 quarters= $0.75 2 pennies= $0.02= $0.77

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3 years ago

Write a calculation and a result that represents a number that is 5 greater than 3.

Phantasy [73]

Answer:

x + 5 > 3