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3 years ago

Using no other digits except 2 and 5 write down, if possible, a three-digit multiple of 5

Mathematics

2 answers:

Nana76 [90]3 years ago

6 0

Answer:

225

Step-by-step explanation:

Flauer [41]3 years ago

3 0

Answer:

255

Step-by-step explanation:

One example of a number that meets this criteria is 255.

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3 years ago

14.50 increased by 7 percent equals?

Andrew [12]

14.50 * 7% = 1.015
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4 years ago

Please help me with math? Thanks ;D

Salsk061 [2.6K]

Answer:

Step-by-step explanation:

$\text{We have}\ a=7,\ b=24,\ c=25.\\\\\text{Substitute to}\ a^2+b^2=c^2:\\\\L_s=7^2+24^2=49+576=625\\\\R_s=25^2=625\\\\L_s=R_s\\\\\boxed{YES}$

$\text{Use the Pythagorean theorem.}\\\\a^2+b^2=c^2\\\\a=1,\ c=\dfrac{13}{5}\\\\\text{Substitute:}\\\\1^2+b^2=\left(\dfrac{13}{5}\right)^2\\\\1+b^2=\dfrac{169}{25}\qquad\text{subtract 1 from both sides}\\\\b^2=\dfrac{169}{25}-1\\\\b^2=\dfrac{169}{25}-\dfrac{25}{25}\\\\b^2=\dfrac{144}{25}\to b=\sqrt{\dfrac{144}{25}}\\\\b=\dfrac{\sqrt{144}}{\sqrt{25}}\\\\b=\dfrac{12}{5}$

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4 years ago