3 years ago

Draw a number line that represents 7+(-4).

Mathematics

1 answer:

tekilochka [14]3 years ago

3 0

You start from negative 7 in number line and you go left 4

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54 is 75% of

VLD [36.1K]

54 is 75% of x.

75% of x:
$75 \% \ of \ x=75\% \times x= \frac{75}{100}x=\frac{3}{4}x$

75% of x is (3/4)x and 75% of x is 54. Set (3/4)x equal to 54:
$\frac{3}{4}x=54 \\
x=54 \times \frac{4}{3} \\
x=\frac{54}{3} \times 4 \\
x=18 \times 4 \\
x=72$

54 is 75% of 72.

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3 years ago

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hram777 [196]

Answer:

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Step-by-step explanation:

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2 years ago

Rewrite in logarithmic form 19^2 = 361

Aneli [31]

Answer:

$\log_{19}{361}=2$

Step-by-step explanation:

We know that taking logarithms performs the transformation ...

$b^e=x\\\\e\cdot\log{b}=\log{x}\quad\text{take logs}\\\\e=\dfrac{\log{x}}{\log{b}}\quad\text{divide by $\log{b}$}\\\\\log_b{x}=e\quad\text{use the change of base formula}$