Mathematics, 30.11.2019 12:31 madisonsessums8

In base ten, the two-digit prime n is 45 more than the number formed by reversing the digits of n, find all the possible values of n.

Answers

Answer from: BrainlyAvenger

Let

, so that

is the digits in the tens place and

is the digit in the ones place. (Clearly $x\neq0$ .)

$10x+y=45+10y+x\implies 9x-9y=45\implies x-y=5$

There are five possible two digits integers that satisfy this relation:

$x=5,y=0\implies N=50$
$x=6,y=1\implies N=61$
$x=7,y=2\implies N=72$
$x=8,y=3\implies N=83$
$x=9,y=4\implies N=94$

But the first, third, and fifth candidates are even, so they are not prime. The remaining are prime, however, so N=61

Answer from: Quest

500 dollars and its probably more than that

Answer from: Quest

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²

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In base ten, the two-digit prime n is 45 more than the number formed by reversing the digits of n, f...