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2 years ago

A positive number under 1000 has exactly one odd digit and it is also a multiple of 5. how many such numbers are there?

Mathematics

1 answer:

sammy [17]2 years ago

3 0

Answer:

Step-by-step explanation:

Numbers that apply (Had to count each one and it was a pain)

100

120

140

160

180

205

210

225

230

245

250

265

270

285

290

300

320

340

360

380

405

410

425

430

445

450

465

470

485

490

500

520

540

560

580

605

610

625

630

645

650

665

670

685

690

700

720

740

760

780

805

810

825

830

845

850

865

870

885

890

900

920

940

960

980

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What is x/9 = 9/27 help plz

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<h3>QUESTION: </h3>

what is x/9 = 9/27 help plz

<h3>ANSWER AND SOLUTION: </h3>

SOLVING FOR X

Reduce first the fraction with 9

$\large \sf = \dfrac{x}{9} = \dfrac{ \cancel9}{ \cancel{27}}$

 $\large \sf = \dfrac{x}{9} = \dfrac{1}{3}$ 

Now simplify using cross-multiply

 $\large \sf = \dfrac{3x}{9} = 1$ 

 $\large \sf = 3x = 1 \times 9$ 

 $\large \sf = 3x = 9$ 

Lastly divide both sides

 $\large \sf = 3x \div 3 = 9 \div 3$ 

 $\large \sf = x = 9 \div 3$ 

 $\large \sf = x = 3$ 

<h3>FINAL ANSWER:</h3>

$\huge \orange{ \underline{ \boxed{ \sf{x = 3}}}}$

HOPE THIS HELP YOU! HAVE A NICE DAY!

~kimtaetae92~

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Step-by-step explanation:

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