50% of 40 dollars

Question

vazorg [7]

3 years ago

14

50% of 40 dollars

align="absmiddle" class="latex-formula">

Mathematics

2 answers:

alisha [4.7K] · Answer 1 · 2022-01-16T08:20:24+03:00

alisha [4.7K]3 years ago

5 0

Answer:20 dollars

Step-by-step explanation:

Percent is always out of 100%, and 50% is half so you need half of 40 giving you the answer of 20

zhuklara [117] · Answer 2 · 2022-01-16T06:23:52+03:00

zhuklara [117]3 years ago

3 0

Answer:

Step-by-step explanation:

$\bold{METHOD\ 1:}\\\\p\%=\dfrac{p}{100}\to50\%=\dfrac{50}{100}=\dfrac{1}{2}=0.5\\\\50\%\ of\ \$40\to0.5\cdot\$40=\$20\\\\\bold{METHOD\ 2:}\\\\\begin{array}{ccc}100\%&-&\$40\\\\50\%&-&x\end{array}\qquad\text{cross multiply}\\\\\\100x=(50)(\$40)\\100x=\$2000\qquad\text{divide both sides by 100}\\\\x=\$20$