"hinge entirely" is correct and can be used in written English.
It is an expression used to refer to something that is dependent on a single factor, or a point of great importance. For example, "The success of our project hinges entirely on the enthusiasm of the team."
Enjoyment will hinge entirely on your feelings for the host; if you're a fan, this is a whole lotta Corden.
His fortunes, however, hinge entirely on the outcome of the war his war in Chechnya.Mr Primakov is in poor health.
People familiar with the Yankee plan say success does not hinge entirely on getting the $2 fee and that it is negotiable.
Don't read ahead if you haven't seen episode nine Dan Martin's episode eight blog Your enjoyment of Cold Blood would seem to hinge entirely on whether you've seen a Silurian story before.
In any case, he said, recent changes in government education guidelines should compensate by diverting less talented students into other career and study paths, "so that your life doesn't hinge entirely on a single exam".
Same-sex marriage advocates had nicknamed him the Counter, after he told them his vote would hinge entirely on a tally of his constituents who appealed to him for or against the measure.
According to some versions of Il milione, he governed the city of Yangzhou for three years sometime between 1282 and 1287; but this assertion seems hardly credible and hinges entirely on the interpretation of one word.
But the White House strategy had hinged entirely on winning over Mr. Kyl, and Democrats, who began scrambling for a backup plan, said they considered the chances of success slim.
"It is regrettable that the outcome hinged entirely on a procedural issue that Australia chose to advocate instead of confronting head on the merits of whether plain packaging is legal or even works".
His work — which appeared in Rolling Stone, Creem, Playboy, and the Village Voice — hinged entirely on the notion that records are high-stakes affairs, and should be consumed and judged with seriousness and impunity.
"Most of the biz guys make sure to let the artist know that his or her adequacy hinges entirely on the ability to generate bucks and numbers," Iggy Pop said in an email.
