$as \: given \: \: 3x \leqslant - 6 \: \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: so \: \frac{3x}{3} \leqslant \frac{ - 6}{3} \: \ \\ results \: in \: x \leqslant - 2$

3 0

2 years ago

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There are 28 students in math class, and 22 of the students passed a recent test. What percentage passed the test?

snow_lady [41]

28 represents 100%
22 represents x %
X= 22•100/28=78.57142857%

3 0

3 years ago

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Evaluate log12 - log4 + log5 and can you explain it to me?

mario62 [17]

Remember some simple log rules

$log(a)+log(b)=log(ab)$
and
$log(a)-log(b)=log(\frac{a}{b})$

work from left to right

$log(12)-log(4)+log(5)=$
$log(\frac{12}{4})+log(5)=$
$log(3)+log(5)=$
$log(3*5)=$
$log(15)$

7 0

2 years ago